s_id stringlengths 10 10 | p_id stringlengths 6 6 | u_id stringlengths 10 10 | date stringlengths 10 10 | language stringclasses 1
value | original_language stringclasses 11
values | filename_ext stringclasses 1
value | status stringclasses 1
value | cpu_time stringlengths 1 5 | memory stringlengths 1 7 | code_size stringlengths 1 6 | code stringlengths 1 539k |
|---|---|---|---|---|---|---|---|---|---|---|---|
s149607648 | p03680 | u784341473 | 1567393033 | Python | Python (3.4.3) | py | Runtime Error | 232 | 7084 | 187 | l=[int(input()) for _ in range(int(input()))]
x=l[0]
cnt=1
while l[x]!=2:
if(l[x]==0 or len(l)==cnt):
print(-1)
exit()
index=l[x]
l[x]=0
x=int(index-1)
cnt+=1
print(cnt) |
s390954820 | p03680 | u677523557 | 1567262596 | Python | Python (3.4.3) | py | Runtime Error | 203 | 7852 | 308 | N = int(input())
A = [int(input()) for _ in range(N)]
c = 0
n = 1
checked = [False for _ in range(N)]
checked[0] = True
for _ in range(N+1):
n = A[n-1]
c += 1
if n == 2:
ok = True
break
if checked[n-1]:
ok = False
break
if ok:
print(c)
else:
print(-1) |
s037983955 | p03680 | u677523557 | 1567262485 | Python | Python (3.4.3) | py | Runtime Error | 204 | 7084 | 248 | N = int(input())
A = [int(input()) for _ in range(N)]
c = 0
n = 1
for _ in range(N+1):
n = A[n-1]
c += 1
if n == 1:
ok = False
break
if n == 2:
ok = True
break
if ok:
print(c)
else:
print(-1) |
s771248925 | p03680 | u835482198 | 1567118367 | Python | Python (3.4.3) | py | Runtime Error | 239 | 8808 | 437 | n = int(input())
As = [int(input()) for _ in range(n)]
visited = [-1 for i in range(n)]
def rec(visited, i, depth):
# print(i, visited[i])
if visited[i] > 0:
return visited[i]
elif visited[i] == 0:
return -1
if As[i] == 2:
visited[i] = 1
return depth
visited[i] = 0
... |
s041007648 | p03680 | u835482198 | 1567118103 | Python | Python (3.4.3) | py | Runtime Error | 242 | 8812 | 466 | n = int(input())
As = [int(input()) for _ in range(n)]
visited = [-1 for i in range(n)]
def rec(visited, prev_i, i, depth):
if visited[i] >= 0:
return visited[i]
if As[i] == 2:
visited[i] = 1
return depth
if prev_i == As[i] - 1:
visited[i] = 0
return visited[i]
... |
s889253213 | p03680 | u835482198 | 1567118020 | Python | Python (3.4.3) | py | Runtime Error | 250 | 8804 | 415 | n = int(input())
As = [int(input()) for _ in range(n)]
visited = [-1 for i in range(n)]
def rec(visited, prev_i, i, depth):
if visited[i] > 0:
return visited[i]
if As[i] == 2:
visited[i] = 1
return depth
if prev_i == As[i] - 1:
return visited[i]
visited[i] = rec(visited... |
s846999823 | p03680 | u967843578 | 1566929487 | Python | Python (3.4.3) | py | Runtime Error | 250 | 8076 | 306 | #!/usr/bin/env python
N = 1
a = []
def sol(x, cnt) :
cnt+=1
if a[x-1] == 2 :
return cnt
if cnt > N :
return -1
return sol(a[x-1], cnt)
if __name__ == '__main__' :
N = int(input())
for i in range(N) :
a.append(int(input()))
print( sol(1,0) )
|
s718775967 | p03680 | u762540523 | 1566342160 | Python | Python (3.4.3) | py | Runtime Error | 18 | 2940 | 266 | def main():
n = int(input())
a =[]
for n in range(n):
a.append(int(input())-1)
sw = [0]
while True:
nextsw = sw[-1]
if nextsw = 1:
print(len(sw))
return
if nextsw in sw:
print(-1)
return
sw.append(nextsw)
main() |
s604315715 | p03680 | u798316285 | 1565981686 | Python | Python (3.4.3) | py | Runtime Error | 187 | 7072 | 137 | n=int(input())
A=list(int(input()) for i in range(n))
a=0
for x in range(n):
a=A[i]
if a==2:
print(x)
break
else:
print(-1) |
s324497057 | p03680 | u798316285 | 1565981617 | Python | Python (3.4.3) | py | Runtime Error | 196 | 7072 | 119 | n=int(input())
A=list(int(input()) for i in range(n))
a=0
for x in range(n):
a=a[i]
if a==2:
print(x)
break |
s848500165 | p03680 | u371530330 | 1565922398 | Python | Python (3.4.3) | py | Runtime Error | 182 | 7084 | 213 | n = int(input())
an = [int(input())-1 for i in range(n)]
cnt = 0
x = 0
for i in range(n):
if a[x] == 1:
break
elif a[x] != 1:
x = a[x]
cnt = cnt +1
if cnt > n:
print(-1)
else:
print(cnt) |
s048111172 | p03680 | u131634965 | 1565893509 | Python | Python (3.4.3) | py | Runtime Error | 205 | 7084 | 204 | N=int(input())
a=[]
for _ in range(N):
a.append(int(input()))
turn_on=a[0]
for count in range(2,N):
if a[turn_on]==2:
print(count)
exit()
turn_on=a[turn_on-1]
print(-1) |
s578349068 | p03680 | u131634965 | 1565893466 | Python | Python (3.4.3) | py | Runtime Error | 202 | 7084 | 204 | N=int(input())
a=[]
for _ in range(N):
a.append(int(input()))
turn_on=a[0]
for count in range(1,N):
if a[turn_on]==2:
print(count)
exit()
turn_on=a[turn_on-1]
print(-1) |
s287273600 | p03680 | u131634965 | 1565893438 | Python | Python (3.4.3) | py | Runtime Error | 215 | 7084 | 217 | N=int(input())
a=[]
for _ in range(N):
a.append(int(input()))
turn_on=a[0]
for count in range(1,N):
count+=1
if a[turn_on]==2:
print(count)
exit()
turn_on=a[turn_on-1]
print(-1) |
s643855578 | p03680 | u219086885 | 1565884133 | Python | Python (3.4.3) | py | Runtime Error | 178 | 7084 | 147 | n = int(input())
an = [int(input()) for i in range(n)]
c, s = 1, a[0]
while s != 2 and c < n:
c, s = c + 1, a[s - 1]
print(c if c < n else -1)
|
s131427244 | p03680 | u248670337 | 1565839121 | Python | Python (3.4.3) | py | Runtime Error | 171 | 7084 | 121 | n=int(input())
a=[int(input()) for i in range(n)]
c,s=1,a[0]
while S!=2 and c<n:
c,s=c+1,a[s-1]
print(c if c<n else -1) |
s245279326 | p03680 | u037221289 | 1565837766 | Python | Python (3.4.3) | py | Runtime Error | 17 | 3060 | 168 | N = int(input())
list = [int(input()) for i in range(n)]
c = 0
x = 1
while x != 2 and c < N:
x = list[x - 1]
c += 1
if x == 2:
print(c)
else:
print(-1)
|
s700471938 | p03680 | u842388336 | 1565821384 | Python | Python (3.4.3) | py | Runtime Error | 194 | 7852 | 275 | N = int(input())
b_list = []
for _ in range(N):
b_list.append(int(input()))
i = b_list[0]
keiyu_list = [0 for _ in range(N)]
cnt=0
while keiyu_list[i]==0:
i = b_list[i-1]
keiyu_list[i]=1
cnt+=1
if i == 2:
cnt+1
break
if i==2:
print(cnt)
else:
print(-1) |
s114695507 | p03680 | u469953228 | 1565590765 | Python | Python (3.4.3) | py | Runtime Error | 39 | 3060 | 175 | n=int(input())
li=[int(i) for i in input().split()]
x = li[0]
ans = -1
count=0
for i in range(n):
x = li[x-1]
if x == 2:
ans = count+1
break
count +=1
print(ans) |
s784894975 | p03680 | u797016134 | 1565064375 | Python | Python (3.4.3) | py | Runtime Error | 2108 | 138260 | 269 | n = int(input())
a = [int(input()) for i in range(n)]
on = 1
count = 0
on_li = [1]
while True:
on = a[on-1]
if on in on_li:
print(-1)
exit()
on_li.append(on)
print(on_li)
count += 1
if on == 2:
print(count)
exit() |
s991270841 | p03680 | u408620326 | 1565062537 | Python | Python (3.4.3) | py | Runtime Error | 1799 | 140064 | 202 | N=int(input())
aN=[int(input()) for _ in range(N)]
c=0
i=1
while True:
print(aN)
c+=1
if aN[i-1]==2:
print(c)
break
elif aN[i-1]==0:
print(-1)
break
t=aN[i-1]
aN[i-1]=0
i=t |
s273489721 | p03680 | u408620326 | 1565061904 | Python | Python (3.4.3) | py | Runtime Error | 173 | 7084 | 165 | N=int(input())
aN=[int(input()) for _ in range(N)]
c=0
i=1
while True:
c+=1
if a[i]==2:
print(c)
break
elif a[i]==0:
print(-1)
i=a[i]
a[i]=0
|
s292205332 | p03680 | u659100741 | 1564871752 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7724 | 290 | n = int(input())
a = [int(input()) for i in range(n)]
check = []
cnt = 0
i = 0
while True:
if i not in check:
check.append(i)
i = a[i]-1
elif cnt >= len(n):
print(-1)
break
if i == 1:
print(len(check))
break
cnt += 1
|
s225465336 | p03680 | u105124953 | 1564800445 | Python | Python (3.4.3) | py | Runtime Error | 401 | 99384 | 359 | import sys
sys.setrecursionlimit(100000)
n = int(input())
a_list = [int(input()) for _ in range(n)]
def calc_ans(start_num, count, max_count, all_list):
ans = all_list[start_num-1]
if ans == 2:
print(count)
elif count == max_count:
print('-1')
else:
calc_ans(ans, count+1, max_cou... |
s504287393 | p03680 | u105124953 | 1564800006 | Python | Python (3.4.3) | py | Runtime Error | 229 | 7980 | 306 | n = int(input())
a_list = [int(input()) for _ in range(n)]
def calc(start_num, count, max_count, all_list):
ans = all_list[start_num-1]
if ans == 2:
print(count)
elif count == max_count:
print('-1')
else:
calc(ans, count+1, max_count, all_list)
calc(1, 1, n, a_list) |
s694514922 | p03680 | u105124953 | 1564799840 | Python | Python (3.4.3) | py | Runtime Error | 229 | 7980 | 306 | n = int(input())
a_list = [int(input()) for _ in range(n)]
def calc(start_num, count, max_count, all_list):
ans = all_list[start_num-1]
if ans == 2:
print(count)
elif count == max_count:
print('-1')
else:
calc(ans, count+1, max_count, all_list)
calc(1, 1, n, a_list) |
s377380358 | p03680 | u536685012 | 1564722397 | Python | Python (3.4.3) | py | Runtime Error | 17 | 2940 | 1 | a |
s585787264 | p03680 | u536685012 | 1564722330 | Python | Python (3.4.3) | py | Runtime Error | 18 | 3064 | 177 | N = int(input())
n = []
for i in range(N):
n.append(int(input()))
a = 1
c = -1
for i in range(N):
a = n[a-1]
if c != -1:
if a == 2:
c = (i+1)
else:
print(c) |
s357444327 | p03680 | u736729525 | 1564718933 | Python | Python (3.4.3) | py | Runtime Error | 17 | 2940 | 191 | N = int(input())
A = [0]+[int(input()) for _ in range(N)]
v = {1}
x = 1
a = 0
while True:
x = A[x]
a += 1
if x in v:
print(-1)
break
if x == 2:
print(a)
break
v.add(x) |
s364782050 | p03680 | u736729525 | 1564718784 | Python | Python (3.4.3) | py | Runtime Error | 17 | 2940 | 180 | N = int(input())
A = [0]+[int(input()) for _ in range(N)]
v = {1}
x = 1
a = 0
while True:
x = A[x]
a += 1
if x in v:
print(-1)
break
if x == 2:
print(a)
break |
s686063517 | p03680 | u759412327 | 1564429983 | Python | Python (3.4.3) | py | Runtime Error | 175 | 7884 | 238 | N = int(input())
a = [0] + [int(input()) for _ in range(N)]
x = 1
visited = set([1])
answer = 0
while True:
x = A[x]
if x in visited:
answer = -1
break
visited.add(x)
answer += 1
if x == 2:
break
print(answer)
|
s025026366 | p03680 | u897328029 | 1564148422 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 27408 | 1231 | # https://atcoder.jp/contests/abc065/tasks/abc065_b
# B - Trained?
n = int(input().split()[0])
index2number_dict = {}
number2index_dict = {}
for i in range(n):
a_i = int(input().split()[0])
index2number_dict[i+1] = a_i
number2index_dict[a_i] = i+1
# ボタンが光っているときに押すと、
# 今のボタンの光が消える
# 次のボタンが光る
# ボタン2が光っている状... |
s240750040 | p03680 | u214434454 | 1563509094 | Python | Python (3.4.3) | py | Runtime Error | 174 | 7084 | 250 | n = int(input())
a = [int(input()) for i in range(n)]
count = 0
i = 0
ans = False
while count < N:
count += 1
if a[i] == 2:
ans = True
break
else:
i = a[i] - 1
if ans == True:
print(count)
else:
print("-1") |
s571146989 | p03680 | u790812284 | 1562991826 | Python | Python (3.4.3) | py | Runtime Error | 174 | 7084 | 215 | import sys
n=int(input())
a=[int(input()) for _ in range(n)]
cnt=0
tmp=1
for i in range(n):
cnt+=1
already.append(tmp)
tmp=a[tmp-1]
if tmp==2:
print(cnt)
sys.exit()
print(-1) |
s039811034 | p03680 | u790812284 | 1562991260 | Python | Python (3.4.3) | py | Runtime Error | 174 | 7084 | 306 | n=int(input())
a=[int(input()) for _ in range(n)]
for i in range(a):
if a[i]==i+1:
print(-1)
cnt=0
tmp=1
already=[]
while True:
cnt+=1
already.append(tmp)
tmp=a[tmp-1]
if tmp==2:
print(cnt)
break
elif tmp in already:
print(-1)
break |
s287387218 | p03680 | u623687794 | 1561784176 | Python | Python (3.4.3) | py | Runtime Error | 170 | 7084 | 222 | n=int(input())
button=[int(input()) for i in range(n)]
temp=1
ans=1
while button[temp-1] not in check:
temp=button[temp-1]
ans+=1
if button[temp-1]==2:
print(ans)
break
elif ans>=n:
print(-1)
break
|
s450053098 | p03680 | u623687794 | 1561783986 | Python | Python (3.4.3) | py | Runtime Error | 174 | 7084 | 224 | n=int(input())
button=[int(input()) for i in range(n)]
temp=1
ans=1
while button[temp-1] not in check:
temp=button[temp-1]
ans+=1
if button[temp-1]==2:
print(ans)
break
elif ans>=n+1:
print(-1)
break
|
s145397779 | p03680 | u313402971 | 1561751146 | Python | Python (3.4.3) | py | Runtime Error | 172 | 7084 | 315 | N = int(input())
buttons = [int(input()) for i in range(N)]
pushed = list()
button = 1
count = 0
while(True):
button = buttons[button - 1]
count +=1
if (button == 2):
print(count)
break
elif(button in pushed):
print(-1)
break
else:
pushued.append(button) |
s396787518 | p03680 | u908349502 | 1561404412 | Python | Python (3.4.3) | py | Runtime Error | 17 | 2940 | 273 | =int(input())
a=[]
for i in range(n):
ai=int(input())
a.append(ai)
finish=False
for i in range(n):
if i==0:
next=a[a[0]-1]
else:
next=a[next-1]
if next==2:
print(i+2)
finish=True
break
if not finish:
print(-1) |
s762609403 | p03680 | u780675733 | 1561151070 | Python | Python (3.4.3) | py | Runtime Error | 18 | 2940 | 241 | phai = 1
cnt = 0
loop_hantei = {1}
for _ in range(N):
phai = A[phai-1]
cnt += 1
if phai in loop_hantei:
print('-1')
break
else:
loop_hantei.add(phai)
if phai == 2:
print(cnt)
break |
s753616373 | p03680 | u932719058 | 1560842119 | Python | Python (3.4.3) | py | Runtime Error | 17 | 3188 | 255 | n = int(input())
l = []
ans = 1
for _ in range(n) :
l.append(int(input()))
if l[0] == 2 :
print(1)
else :
i = l[0] - 1
while True :
if l[i] == 2 :
ans += 1
break
i = l[i] - 1
ans += 1
if ans == n+1 :
print(-1)
exit()
print(ans) |
s262928407 | p03680 | u932719058 | 1560841398 | Python | Python (3.4.3) | py | Runtime Error | 216 | 7084 | 244 | n = int(input())
l = []
ans = 1
for _ in range(n) :
l.append(int(input()))
if l[0] == 2 :
print(1)
else :
i = l[0] - 1
while True :
if l[i] == 2 :
ans += 1
break
i = l[i] - 1
ans += 1
if ans == n+1 :
print('-1')
exit()
print(ans) |
s862988094 | p03680 | u062459048 | 1560699372 | Python | Python (3.4.3) | py | Runtime Error | 204 | 7084 | 209 | n = int(input())
lista = []
for i in range(n):
lista.append(int(input()))
count = 1
fp = lista[0]
for i in range(n):
fp = lista[fp]
count += 1
if fp == 2:
print(count)
exit()
print(-1)
|
s333045933 | p03680 | u223904637 | 1560562938 | Python | Python (3.4.3) | py | Runtime Error | 212 | 7796 | 263 | n=int(input())
l=[0]*n
for i in range(n):
l[i]=int(input())
vi=[0]*n
vi[0]=1
ans=1
st=l[0]
f=0
while vi[1]==0:
vi[st]+=1
if vi[st]>1:
f=1
break
st=l[st-1]
ans+=1
if f==0:
print(ans)
else:
print(-1)
|
s960630224 | p03680 | u539517139 | 1560258478 | Python | Python (3.4.3) | py | Runtime Error | 17 | 2940 | 160 | n=int(input())
a=[0]*n
for _ in range(n):
a[_]=int(input())
c=0
p=a[0]
while True:
p=a[p-1]
c+=1
if p=2:
break
if p=1:
c=-1
break
print(c) |
s377892663 | p03680 | u538632589 | 1560114094 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7456 | 312 | N = int(input())
a = [int(input()) for i in range(N)]
stack = [2]
can = False
while True:
if stack[len(stack)-1] == 1:
can = True
break
c = stack[len(stack)-1]
i = a.index(c)+1
if i in stack:
break
stack.append(i)
if can:
print(len(stack)-1)
else:
print(-1) |
s285593652 | p03680 | u172111219 | 1560048984 | Python | PyPy3 (2.4.0) | py | Runtime Error | 633 | 57312 | 246 | n = int(input())
a = [int(input()) for _ in range(n)]
def solve(a,index,l):
if l == len(a)+1:
return print(-1)
value = a[index-1]
if value == 2:
return print(l)
else:
solve(a,value,l+1)
solve(a,1,1) |
s513895490 | p03680 | u172111219 | 1560048759 | Python | PyPy3 (2.4.0) | py | Runtime Error | 628 | 57816 | 270 | n = int(input())
a = [int(input()) for _ in range(n)]
index = a.index(1)+1
def solve(a,index,l):
if l == len(a)+1:
return print(-1)
value = a[index-1]
if value == 2:
return print(l)
else:
solve(a,value,l+1)
solve(a,index,0) |
s718979892 | p03680 | u672494157 | 1560005770 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 16436 | 802 | import functools
def inputs(num_of_input):
ins = [input() for i in range(num_of_input)]
return ins
def solve(inputs):
a = list(map(lambda x: int(x), inputs))
a[1] = -1
return wh(a, 2, 0, len(a))
def wh(a, search, count, N):
counts = []
if search == 1:
return count
elif cou... |
s220834454 | p03680 | u672494157 | 1560005548 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 15956 | 749 | import functools
def inputs(num_of_input):
ins = [input() for i in range(num_of_input)]
return ins
def solve(inputs):
a = list(map(lambda x: int(x), inputs))
a[1] = -1
return wh(a, 2, 0)
def wh(a, search, count):
counts = []
if search == 1:
return count
for i, value in en... |
s081188638 | p03680 | u129978636 | 1559675262 | Python | Python (3.4.3) | py | Runtime Error | 141 | 9488 | 213 | a=[input() for _ in range(int(input()))]
ans=1
c=a[0]
if(c==2):
print(ans)
else:
while(c!=2):
ans+=1
c=a[c-1]
if(ans>len(a)):
print(-1)
exit()
print(ans) |
s716033518 | p03680 | u802772880 | 1559436368 | Python | Python (3.4.3) | py | Runtime Error | 177 | 7320 | 160 | n=int(input())
a=[int(input())-1 for _ in range(n)]
ans=-1
l=0
for i in range(n):
l=a[l]
cnt[l]+=1
if l==1:
ans=i+1
break
print(ans) |
s283961532 | p03680 | u689322583 | 1559358792 | Python | Python (3.4.3) | py | Runtime Error | 17 | 3060 | 271 | #coding: utf-8
import sys
N = int(sys.stdin)
a = []
for i in range(N):
a.append(int(sys.stdin))
start = 0
count = 0
for i in range(N):
count += 1
next = a[start]
if(next == 2):
print(count)
break
start = next - 1
else:
print(-1) |
s232257548 | p03680 | u689322583 | 1559358703 | Python | Python (3.4.3) | py | Runtime Error | 17 | 3064 | 264 | #coding: utf-8
import sys
N = sys.stdin
a = []
for i in range(N):
a.append(int(input()))
start = 0
count = 0
for i in range(N):
count += 1
next = a[start]
if(next == 2):
print(count)
break
start = next - 1
else:
print(-1) |
s529937427 | p03680 | u689322583 | 1559358566 | Python | Python (3.4.3) | py | Runtime Error | 17 | 3064 | 274 | #coding: utf-8
import sys
N = map(int, sys.stdin)
a = []
for i in range(N):
a.append(int(input()))
start = 0
count = 0
for i in range(N):
count += 1
next = a[start]
if(next == 2):
print(count)
break
start = next - 1
else:
print(-1) |
s537070818 | p03680 | u689322583 | 1559358352 | Python | Python (3.4.3) | py | Runtime Error | 18 | 3060 | 269 | #coding: utf-8
import sys
N = int(sys.stdin)
a = []
for i in range(N):
a.append(int(input()))
start = 0
count = 0
for i in range(N):
count += 1
next = a[start]
if(next == 2):
print(count)
break
start = next - 1
else:
print(-1) |
s561718471 | p03680 | u382431597 | 1559186695 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7084 | 659 | import sys
def search_next(nextbutton : int) -> int:
nextbutton = a.index(nextbutton) +1
return nextbutton
n = int(input())
a = [int(input()) for i in range(n)]
nextbutton = 2
count = 1
try :
nextbutton = search_next(nextbutton)
except:
print(-1)
sys.exit()
#print(nextbutton,"first")
for _ in ra... |
s794195034 | p03680 | u382431597 | 1559186378 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7084 | 639 | import sys
def search_next(nextbutton : int) -> int:
nextbutton = a.index(nextbutton) +1
return nextbutton
n = int(input())
a = [int(input()) for i in range(n)]
nextbutton = 2
count = 1
try :
nextbutton = search_next(nextbutton)
except:
print(-1)
sys.exit()
#print(nextbutton,"first")
while 1:
... |
s320111395 | p03680 | u279229189 | 1558301521 | Python | Python (3.4.3) | py | Runtime Error | 196 | 7192 | 200 | length = int(input())
data = ([int(input()) for i in range(length)])
cnt = 0
i = 1
v = 0
while v != 2:
v = data[i]
i = v
if cnt >= data[0]:
cnt = -1
break
cnt += 1
print(cnt) |
s852081555 | p03680 | u279229189 | 1558301427 | Python | Python (3.4.3) | py | Runtime Error | 187 | 7084 | 197 | length = int(input())
data = ([int(input()) for i in range(length)])
cnt = 0
i = 1
v = 0
while v != 2:
v = data[i]
i = v
cnt += 1
if cnt >= data[0]:
cnt = -1
break
print(cnt) |
s870221806 | p03680 | u448354193 | 1557874892 | Python | PyPy3 (2.4.0) | py | Runtime Error | 171 | 38256 | 337 | import sys
n=int(input())
a=[]
f=[]
has2=False
for i in range(n):
ai=int(input())
if ai==2:
has2=True
a.append(ai)
f.append(False)
if has2==False:
print("-1")
sys.exit()
f[0]=True
now=0
cnt=0
while True:
if f[now]==True:
print(-1)
break
if now==2:
print(cnt)
break
f[now]=True
n... |
s983207706 | p03680 | u152671129 | 1557510305 | Python | Python (3.4.3) | py | Runtime Error | 38 | 3060 | 206 | n = int(input())
a = list(map(int, input().split()))
next = a[0]
count = 1
for i in range(1,n):
if next == 2:
print(count)
break
next = a[next-1]
count += 1
else:
print(-1) |
s096692886 | p03680 | u039360403 | 1557199282 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7748 | 188 | n=int(input())
a=list(int(input()) for _ in range(n))
i=1
c=1
i=a[a.index(i)-1]
while c!=n or i == 2:
i=a[a.index(i)-1]
print(i)
c+=1
print(-1 if c==n+1 else c)
print(c)
|
s995081349 | p03680 | u756388720 | 1556587397 | Python | Python (3.4.3) | py | Runtime Error | 235 | 8796 | 186 | N = int(input())
a = [int(input()) for _ in range(N)]
c = [0] * N
def f(i, n):
if a[n] == 2: return i
if c[n] == 1: return -1
c[n] = 1
return f(i + 1, a[n] - 1)
print(f(1, 0))
|
s432392239 | p03680 | u732870425 | 1556400458 | Python | Python (3.4.3) | py | Runtime Error | 191 | 7084 | 173 | N = int(input())
a = [int(input()) for _ in range(N)]
button = 0
for i in range(1,N+1):
button = a[a[button]-1]
if button == 2:
print(i)
else:
print(-1) |
s771496580 | p03680 | u732870425 | 1556400281 | Python | Python (3.4.3) | py | Runtime Error | 197 | 7084 | 171 | N = int(input())
a = [int(input()) for _ in range(N)]
button = 0
for i in range(1,N+1):
button = a[a[button]]
if button == 2:
print(i)
else:
print(-1) |
s917334827 | p03680 | u220345792 | 1555857135 | Python | Python (3.4.3) | py | Runtime Error | 209 | 7084 | 237 | N = int(input())
a = []
for i in range(N):
a.append(int(input()))
j = 0
count = 0
flag = False
for i in range(N):
if a[j] == 2:
flag = True
break
else:
j = a[j]
count += 1
if flag:
print(count)
else:
print(-1)
|
s636544424 | p03680 | u037430802 | 1555595424 | Python | Python (3.4.3) | py | Runtime Error | 17 | 2940 | 323 | n = int(input())
arr = []
passed = []
for i in range(n):
a = int(input())
arr.append(a)
next_position = 1
ans = 0
while(1):
next_position = arr[next_position-1]
#print(position)
if ans == n
print(-1)
break
#passed.append(next_position)
ans += 1
if next_position == 2:
print(ans)
break... |
s455081711 | p03680 | u655975843 | 1555024935 | Python | Python (3.4.3) | py | Runtime Error | 120 | 7084 | 357 | import sys
ns = lambda: sys.stdin.readline().rstrip()
ni = lambda: int(ns())
nm = lambda: map(int, sys.stdin.readline().split())
nl = lambda: list(nm())
n = ni()
a = [ni() for _ in range(n)]
count = 0
nexti = 0
for i in range(n):
if nexti == 1:
print(count)
exit()
else:
nexti = a[a[nex... |
s380169495 | p03680 | u300269535 | 1554992562 | Python | Python (3.4.3) | py | Runtime Error | 231 | 7992 | 477 | count = 0
def judge(a, i):
global count
count += 1
if count > len(a):
return -1
else:
if 0 <= i < len(a):
if a[i] == 2:
return count
else:
return judge(a, a[i]-1)
else:
return -1
def B_Trained():
n = int(in... |
s293968344 | p03680 | u300269535 | 1554992109 | Python | Python (3.4.3) | py | Runtime Error | 240 | 7992 | 425 | count = 0
def judge(a, i):
global count
count += 1
if count > len(a):
return -1
else:
if a[i] == 2:
return count
else:
return judge(a, a[i]-1)
def B_Trained():
n = int(input())
a = []
for i in range(n):
a.append(int(input()))
... |
s494352441 | p03680 | u268516119 | 1554918530 | Python | Python (3.4.3) | py | Runtime Error | 519 | 11252 | 291 | import sys
sys.setrecursionlimit(5000)
N=int(input())
A=[int(input())-1 for _ in range(N)]
result=[]
app=result.append
def next(k):
newlight=A[k]
if k==1:
return(1)
elif k in result:
return(0)
else:
app(k)
return(next(newlight))
if not next(0):
print(-1)
else:print(len(result)) |
s768621673 | p03680 | u268516119 | 1554918444 | Python | Python (3.4.3) | py | Runtime Error | 293 | 11300 | 269 | N=int(input())
A=[int(input())-1 for _ in range(N)]
result=[]
app=result.append
def next(k):
print(result,k)
newlight=A[k]
if k==1:
return(1)
elif k in result:
return(0)
else:
app(k)
return(next(newlight))
if not next(0):
print(-1)
else:print(len(result)) |
s521040726 | p03680 | u859897687 | 1554227822 | Python | Python (3.4.3) | py | Runtime Error | 182 | 7084 | 178 | n=int(input())
d=[int(input())-1for i in range(n)]
s=set(0)
ans=0
b=0
while 1>0:
if d[b] in s:
ans=-1
break
b=d[b]
s.add(b)
ans+=1
if b==1:
break
print(ans) |
s495365851 | p03680 | u859897687 | 1554227785 | Python | Python (3.4.3) | py | Runtime Error | 176 | 7084 | 177 | n=int(input())
d=[int(input())-1for i in range(n)]
s=set(0)
ans=0
b=0
while 1>0:
if d[b] in s:
ans=-1
break
b=d[b]
s+=d[b]
ans+=1
if b==1:
break
print(ans) |
s402588918 | p03680 | u878138257 | 1553841117 | Python | Python (3.4.3) | py | Runtime Error | 189 | 7084 | 218 | n = int(input())
listA = [int(input()) for i in range(n)]
a = listA[0]
b = 0
for j in range(n):
if a != 2:
a = listA[a]
b = b+1
elif a == 2:
b = b+1
break
if b == n:
print(-1)
else:
print(b)
|
s716737687 | p03680 | u549497563 | 1553709929 | Python | Python (3.4.3) | py | Runtime Error | 17 | 2940 | 191 | n = int(input())
a = [int(input()) for i in range(n)]
i = 0
cnt = 1
while a[i]!=2:
if i == a[a[i]-1]-1:
print(-1)
exit()
i=a[i]-1
cnt += 1
else:
print(cnt) |
s117391559 | p03680 | u227082700 | 1553624576 | Python | Python (3.4.3) | py | Runtime Error | 18 | 3060 | 142 | n,a,b,m=int(input()),[int(input())for i in range(n)],[],1
while m!=2 and m in b:
b.append(m)
m=b[m-1]
if m==2:print(len(b))
else:print(-1) |
s815874156 | p03680 | u280512618 | 1552970873 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7084 | 186 | n = int(input())
a = [int(input()) for _ in range(n)]
i = 1
c = 0
while True:
if i == 2:
print(c)
quit(0)
if a[i] == i:
print(-1)
quit(0)
c += 1
i, a[i] = a[i], i |
s821600240 | p03680 | u280512618 | 1552970756 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7084 | 159 | n = int(input())
a = [int(input()) for _ in range(n)]
i = 1
c = 0
while a[i] != i:
if i == 2:
print(c)
quit(0)
c += 1
i, a[i] = a[i], i
print(-1) |
s699070204 | p03680 | u952022797 | 1552340363 | Python | Python (3.4.3) | py | Runtime Error | 17 | 2940 | 355 | # -*- coding: utf-8 -*-
import sys
def main():
N = int(input())
btnList = []
for _ in range(N):
tmp = int(input())
btnList.append(tmp)
tugi = btnList[0]
i = 1
if tugi-1 == 1:
print(i)
sys.exit()
while i < N+1:
i += 1
tugi = btnList[tugi-1]
if tugi-1 == 1:
print(i)
sys.exit()
print(-1)
i... |
s667430006 | p03680 | u952022797 | 1552339548 | Python | Python (3.4.3) | py | Runtime Error | 17 | 2940 | 241 | N = int(input())
ai = [int(input()) for i in range(N)]
now = 1
count = 0
for i in range(N):
count = count + 1
now = ai[now-1]
if now == 2:
print(count)
exit()
print(-1) |
s663937825 | p03680 | u952022797 | 1552337341 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 138572 | 397 | # -*- coding: utf-8 -*-
import sys
def main():
N = int(input())
btnList = []
for _ in range(N):
tmp = int(input())
btnList.append(tmp)
tugi = btnList[0]
lists = [0]
while True:
lists.append(tugi-1)
tugi = btnList[tugi-1]
print(lists)
if tugi-1 == 1:
print(len(lists))
sys.exit()
if (tugi-1... |
s593255501 | p03680 | u102960641 | 1552186373 | Python | Python (3.4.3) | py | Runtime Error | 188 | 7084 | 172 | n = int(input())
a = [int(input()) for i in range(n)]
now = 0
ans = -1
for i in range(n):
value = a[now]
if value == 2:
ans = i+1
break
now = value
print(ans) |
s605764337 | p03680 | u409064224 | 1551993703 | Python | Python (3.4.3) | py | Runtime Error | 1504 | 8076 | 385 | n = int(input())
l = []
for i in range(n):
l.append(int(input()))
zero = l[0]
count = 1
th = [zero]
def r(index,throw):
global l
now = l[index-1]
# print(now,throw)
if (now in throw) or (2 not in l):
print(-1)
return
if now != 2:
throw.append(now)
r(now,throw)
... |
s856473690 | p03680 | u393512980 | 1551929953 | Python | Python (3.4.3) | py | Runtime Error | 18 | 3064 | 285 | from collections import defaultdict
N = int(input())
btn = [int(input()) for _ in range(N)]
i, ans = 0, 0
checked = defaultdict(int)
while 1:
next = btn[i]
ans += 1
if next == 2:
print(ans)
break
if checked[next] == 1:
print(-1)
break
i = next
checked[i] = 1 |
s857384121 | p03680 | u906651641 | 1551845967 | Python | Python (3.4.3) | py | Runtime Error | 18 | 2940 | 191 | n = int(input())
a = [int(input()) - 1 for i in range(n)]
i = 0
count = 0
while(1):
i = a[i]
count += 1
if i == 1:
break
elif i == 0:
print(-1)
return 0
print(count) |
s880774337 | p03680 | u796942881 | 1551148721 | Python | Python (3.4.3) | py | Runtime Error | 70 | 8616 | 289 | import sys
l = [int(i) for i in sys.stdin]
N = l[0]
a = l[1:]
done = [False] * N
i = 0
ans = 0
while True:
if done[i] == False:
done[i] = True
ans += 1
if a[i] == 1:
break
i = a[i]
else:
ans = -1
break
print(ans)
|
s991958778 | p03680 | u013408661 | 1550676526 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7084 | 258 | n=int(input())
lamp=[]
status=1
count=0
possible=1
for i in range(n):
p=int(input())
lamp.append(p)
while status!=2 or count==n:
status=lamp[status]
count+=1
if count==n and status!=2:
possible=0
if possible==1:
print(count)
else:
print(-1) |
s658453463 | p03680 | u543954314 | 1550635174 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7084 | 209 | n = int(input())
a = [int(input()) for i in range(n)]
c = 0
p = 0
while True:
c = a[c]
p += 1
if c == 1:
print(p)
exit()
elif c == 0 and p > 1:
print(-1)
exit()
|
s358733144 | p03680 | u543954314 | 1550635056 | Python | Python (3.4.3) | py | Runtime Error | 172 | 7084 | 209 | n = int(input())
a = [int(input()) for i in range(n)]
c = 0
p = 0
while True:
c = s[c]
p += 1
if c == 1:
print(p)
exit()
elif c == 0 and p > 1:
print(-1)
exit()
|
s855177608 | p03680 | u076503518 | 1550549747 | Python | Python (3.4.3) | py | Runtime Error | 243 | 7984 | 208 | N = int(input())
a = []
for _ in [0]*N:
a.append(int(input()))
def solve(i, n):
if n == 2:
print(i)
elif i == N:
print(-1)
else:
return solve(i+1, a[n-1])
solve(0, 1) |
s776809592 | p03680 | u023229441 | 1550191299 | Python | Python (3.4.3) | py | Runtime Error | 204 | 7084 | 168 | n=int(input())
A=[]
for i in range(n):
A.append(int(input()))
a=0
ans=1
for i in range(100100):
if A[a]==1:
print(ans)
exit()
ans+=1
a=A[a]
print(-1) |
s330092290 | p03680 | u931462344 | 1549255285 | Python | Python (3.4.3) | py | Runtime Error | 213 | 7084 | 186 | n = int(input())
a = []
for i in range(n):
a.append(int(input()))
cnt = 0
t = 1
for i in a:
t = a[t-1]
cnt += 1
if t == 2:
print(cnt)
exit(1)
print("-1") |
s260291590 | p03680 | u931462344 | 1549255217 | Python | Python (3.4.3) | py | Runtime Error | 217 | 7084 | 184 | n = int(input())
a = []
for i in range(n):
a.append(int(input()))
cnt = 0
t = 1
for i in a:
t = a[t-1]
cnt += 1
if t == 2:
print(cnt)
exit(1)
print(-1) |
s311445938 | p03680 | u089032001 | 1546747976 | Python | Python (3.4.3) | py | Runtime Error | 240 | 8920 | 275 | def func(i=0, ans=0):
if B[i] is True:
return -1
else:
B[i] = True
ans += 1
if A[i] != 1:
return func(A[i], ans)
else:
return ans
n = int(input())
A = [int(input())-1 for i in range(n)]
B = [False] * n
print(func()) |
s177356751 | p03680 | u371467115 | 1546275145 | Python | Python (3.4.3) | py | Runtime Error | 17 | 2940 | 153 | n=int(input())
a=[i+1:int(input()) for i in range(n)]
v=1
for c in range(n):
v=a[v]
if v==2:
print(c+1)
break
else:
print(-1) |
s736302197 | p03680 | u845427284 | 1546233598 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7084 | 179 | n = int(input())
a =[]
for i in range(n):
a.append(int(input()))
num = 0
count = 1
while num != 2:
num = a[num]
count += 1
if count >= n:
count = -1
print(count) |
s019484523 | p03680 | u845427284 | 1546233356 | Python | Python (3.4.3) | py | Runtime Error | 2104 | 7084 | 181 | n = int(input())
a =[]
for i in range(n):
a.append(int(input()))
num = 0
count = 0
while num != 2:
count += 1
num = a[num]
if count >= n:
count = -1
print(count) |
s456203156 | p03680 | u586478468 | 1546137951 | Python | Python (3.4.3) | py | Runtime Error | 212 | 7084 | 310 | N = int(input())
A = []
for i in range(N):
A.append(int(input()))
count=1
num=0
ans = A.index(2)
st = A[0]
for i in range(N):
if(A[0] == 2):
print(count)
break
count+=1
if(st==ans+1):
print(count)
num=1
break
st = A[st-1]
if(num!=1):
print(-1) |
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