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Provide tags and a correct Python 3 solution for this coding contest problem. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any square from any other square. The square number 1 ...
instruction
0
61,671
1
123,342
Tags: binary search, dfs and similar, graphs, greedy, trees Correct Solution: ``` maxn = 200005 cities = [0 for _ in range(maxn)] n = int(input()) x = list(map(int , input().split(' '))) total = [0]+list(map(int,input().split(' '))) ans = 0 for i in range(n,0,-1): if(cities[i]==0): cities[i]=1 if(i>=2):...
output
1
61,671
1
123,343
Provide tags and a correct Python 3 solution for this coding contest problem. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any square from any other square. The square number 1 ...
instruction
0
61,672
1
123,344
Tags: binary search, dfs and similar, graphs, greedy, trees Correct Solution: ``` n = int(input()) cities = [0 for _ in range(n + 1)] x = list(map(int, input().split(' '))) total = [0] + list(map(int, input().split(' '))) ans = 0 for i in range(n, 0, -1): if(cities[i] == 0): cities[i] = 1 if(i >= 2): ...
output
1
61,672
1
123,345
Provide tags and a correct Python 3 solution for this coding contest problem. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any square from any other square. The square number 1 ...
instruction
0
61,673
1
123,346
Tags: binary search, dfs and similar, graphs, greedy, trees Correct Solution: ``` from collections import defaultdict, deque from math import ceil from sys import setrecursionlimit import io, os setrecursionlimit(300000) input = io.BytesIO(os.read(0, os.fstat(0).st_size)).readline n = int(input()) par = [-1] + list...
output
1
61,673
1
123,347
Provide tags and a correct Python 3 solution for this coding contest problem. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any square from any other square. The square number 1 ...
instruction
0
61,674
1
123,348
Tags: binary search, dfs and similar, graphs, greedy, trees Correct Solution: ``` from math import factorial, ceil from sys import stdin, stdout from collections import defaultdict def DFS(arr, citz, n) : parent = {} children = defaultdict(lambda : 0) for i in range(len(arr)) : parent[ i+2 ] = a...
output
1
61,674
1
123,349
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any squ...
instruction
0
61,675
1
123,350
Yes
output
1
61,675
1
123,351
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any squ...
instruction
0
61,676
1
123,352
Yes
output
1
61,676
1
123,353
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any squ...
instruction
0
61,677
1
123,354
Yes
output
1
61,677
1
123,355
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any squ...
instruction
0
61,678
1
123,356
Yes
output
1
61,678
1
123,357
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any squ...
instruction
0
61,679
1
123,358
No
output
1
61,679
1
123,359
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any squ...
instruction
0
61,680
1
123,360
No
output
1
61,680
1
123,361
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any squ...
instruction
0
61,681
1
123,362
No
output
1
61,681
1
123,363
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Bandits appeared in the city! One of them is trying to catch as many citizens as he can. The city consists of n squares connected by n-1 roads in such a way that it is possible to reach any squ...
instruction
0
61,682
1
123,364
No
output
1
61,682
1
123,365
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n cities on a two dimensional Cartesian plane. The distance between two cities is equal to the Manhattan distance between them (see the Notes for definition). A Hamiltonian cycle of th...
instruction
0
61,753
1
123,506
No
output
1
61,753
1
123,507
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n cities on a two dimensional Cartesian plane. The distance between two cities is equal to the Manhattan distance between them (see the Notes for definition). A Hamiltonian cycle of th...
instruction
0
61,754
1
123,508
No
output
1
61,754
1
123,509
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are n cities on a two dimensional Cartesian plane. The distance between two cities is equal to the Manhattan distance between them (see the Notes for definition). A Hamiltonian cycle of th...
instruction
0
61,755
1
123,510
No
output
1
61,755
1
123,511
Provide tags and a correct Python 3 solution for this coding contest problem. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th taxi is located at point (xi, yi) and moves wi...
instruction
0
61,927
1
123,854
Tags: brute force, geometry, implementation Correct Solution: ``` # sqrt((x2-x1)**2 + (y2-y1)**2) a, b = map(int, input().split()) m = float("inf") n = int(input()) for _ in range(n): x, y, v = map(int, input().split()) dist = ((a-x)**2+(b-y)**2)**0.5 m = min(m, dist/v) print('%.6f' % m) ```
output
1
61,927
1
123,855
Provide tags and a correct Python 3 solution for this coding contest problem. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th taxi is located at point (xi, yi) and moves wi...
instruction
0
61,928
1
123,856
Tags: brute force, geometry, implementation Correct Solution: ``` import math; def calLength(p1, p2): l = math.pow(p1[0] - p2[0], 2) + math.pow(p1[1] - p2[1], 2); return math.sqrt(l); def main(): getS = input(); getS = getS.split(); a = int(getS[0]); b = int(getS[1]); n = int(input()); ...
output
1
61,928
1
123,857
Provide tags and a correct Python 3 solution for this coding contest problem. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th taxi is located at point (xi, yi) and moves wi...
instruction
0
61,929
1
123,858
Tags: brute force, geometry, implementation Correct Solution: ``` import sys from math import sqrt (a,b) = map(int,input().split()) n = int(input()) mini = 99999 for i in range(n): (x,y,v) = map(int, input().split()) t = sqrt( (x-a)**2 + (y - b)**2) / (v * 1.00000000000000000000) if t < mini: mini = t print(mini)...
output
1
61,929
1
123,859
Provide tags and a correct Python 3 solution for this coding contest problem. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th taxi is located at point (xi, yi) and moves wi...
instruction
0
61,930
1
123,860
Tags: brute force, geometry, implementation Correct Solution: ``` x,y=map(int,input().split()) n=int(input()) mi=11**11 for _ in range(n): xt,yt,v=map(int,input().split()) t=((x-xt)**2+(y-yt)**2)**0.5/v if t<mi: mi=t print(mi) ```
output
1
61,930
1
123,861
Provide tags and a correct Python 3 solution for this coding contest problem. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th taxi is located at point (xi, yi) and moves wi...
instruction
0
61,931
1
123,862
Tags: brute force, geometry, implementation Correct Solution: ``` import math CarPos = [] def LeastTime(x,y,n,CarPos): time = [] for i in range(n): for j in range(3): dis = math.sqrt((CarPos[i] [0] - x )**2 + (CarPos[i] [1] - y )**2 ) t = dis / CarPos[i] [2] time.ap...
output
1
61,931
1
123,863
Provide tags and a correct Python 3 solution for this coding contest problem. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th taxi is located at point (xi, yi) and moves wi...
instruction
0
61,932
1
123,864
Tags: brute force, geometry, implementation Correct Solution: ``` import math as m hx, hy = map(int, input().split()); n = int(input()); res = 1000; for i in range(n): x, y, v = map(int, input().split()); res = min((m.sqrt(pow((hx - x),2) + pow((hy - y), 2)))/v, res); print(res) ```
output
1
61,932
1
123,865
Provide tags and a correct Python 3 solution for this coding contest problem. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th taxi is located at point (xi, yi) and moves wi...
instruction
0
61,933
1
123,866
Tags: brute force, geometry, implementation Correct Solution: ``` x,y =map(int, input().split()) n = int(input()) op = 10000.0 for i in range(n): a,b,v = map(int , input().split()) d = ( (a-x)**2 + (b-y)**2 )** 0.5 #print(d,a,b,v,x,y) if (i==1): op = d/v elif(op > d/v): op = d/v print("%.20f"%op) ```
output
1
61,933
1
123,867
Provide tags and a correct Python 3 solution for this coding contest problem. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th taxi is located at point (xi, yi) and moves wi...
instruction
0
61,934
1
123,868
Tags: brute force, geometry, implementation Correct Solution: ``` from math import sqrt a, b = map(int, input().split()) n = int(input()) best_time = 999999999 for _ in range(n): x, y, v = map(int, input().split()) time = sqrt((a-x) ** 2 + (b-y) ** 2) / v if time < best_time: best_time = time pr...
output
1
61,934
1
123,869
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th...
instruction
0
61,935
1
123,870
Yes
output
1
61,935
1
123,871
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th...
instruction
0
61,936
1
123,872
Yes
output
1
61,936
1
123,873
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th...
instruction
0
61,937
1
123,874
Yes
output
1
61,937
1
123,875
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th...
instruction
0
61,938
1
123,876
Yes
output
1
61,938
1
123,877
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th...
instruction
0
61,939
1
123,878
No
output
1
61,939
1
123,879
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th...
instruction
0
61,940
1
123,880
No
output
1
61,940
1
123,881
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th...
instruction
0
61,941
1
123,882
No
output
1
61,941
1
123,883
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. Vasiliy lives at point (a, b) of the coordinate plane. He is hurrying up to work so he wants to get out of his house as soon as possible. New app suggested n available Beru-taxi nearby. The i-th...
instruction
0
61,942
1
123,884
No
output
1
61,942
1
123,885
Provide a correct Python 3 solution for this coding contest problem. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other than these roads, there is no way to travel between these ...
instruction
0
62,093
1
124,186
"Correct Solution: ``` t = [0] * 4 for i in range(3): a, b = map(int, input().split()) t[a - 1] += 1 t[b - 1] += 1 print('NO') if max(t)==3 else print('YES') ```
output
1
62,093
1
124,187
Provide a correct Python 3 solution for this coding contest problem. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other than these roads, there is no way to travel between these ...
instruction
0
62,094
1
124,188
"Correct Solution: ``` a=[0]*4 for i in range(3): x,y=map(int,input().split()) a[x-1]+=1 a[y-1]+=1 c=0 for i in range(4): if a[i]%2!=0: c+=1 if c==0 or c==2: print("YES") else: print("NO") ```
output
1
62,094
1
124,189
Provide a correct Python 3 solution for this coding contest problem. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other than these roads, there is no way to travel between these ...
instruction
0
62,095
1
124,190
"Correct Solution: ``` c = [0]*4 for i in range(3): a,b = map(int,input().split()) c[a-1] += 1 c[b-1] += 1 c.sort() print('YES' if c==[1,1,2,2] else 'NO') ```
output
1
62,095
1
124,191
Provide a correct Python 3 solution for this coding contest problem. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other than these roads, there is no way to travel between these ...
instruction
0
62,096
1
124,192
"Correct Solution: ``` town = [0] * 4 for _ in range(3): a, b = map(int, input().split()) town[a-1] += 1 town[b-1] += 1 if 3 in town or 4 in town: ans = 'NO' else: ans = 'YES' print(ans) ```
output
1
62,096
1
124,193
Provide a correct Python 3 solution for this coding contest problem. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other than these roads, there is no way to travel between these ...
instruction
0
62,097
1
124,194
"Correct Solution: ``` X=[0]*4 for i in range(3): A,B=map(int,input().split()) X[A-1]+=1 X[B-1]+=1 X.sort() if(X[0]==1 and X[1]==1 and X[2]==2): print("YES") else: print("NO") ```
output
1
62,097
1
124,195
Provide a correct Python 3 solution for this coding contest problem. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other than these roads, there is no way to travel between these ...
instruction
0
62,098
1
124,196
"Correct Solution: ``` X = [0 for _ in range(4)] for _ in range(3): a, b = [int(_) for _ in input().split()] X[a-1] += 1 X[b-1] += 1 if max(X) > 2: print("NO") else: print("YES") ```
output
1
62,098
1
124,197
Provide a correct Python 3 solution for this coding contest problem. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other than these roads, there is no way to travel between these ...
instruction
0
62,099
1
124,198
"Correct Solution: ``` g=[0]*5 import sys input=sys.stdin.readline for _ in range(3): a,b=map(int,input().split()) g[a]+=1 g[b]+=1 if g.count(1)==2: print("YES") else: print("NO") ```
output
1
62,099
1
124,199
Provide a correct Python 3 solution for this coding contest problem. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other than these roads, there is no way to travel between these ...
instruction
0
62,100
1
124,200
"Correct Solution: ``` lis = [0] * 5 for i in range(3): a,b = map(int,input().split()) lis[a] += 1 lis[b] += 1 if max(lis) == 3: print ("NO") else: print ("YES") ```
output
1
62,100
1
124,201
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other th...
instruction
0
62,101
1
124,202
Yes
output
1
62,101
1
124,203
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other th...
instruction
0
62,102
1
124,204
Yes
output
1
62,102
1
124,205
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other th...
instruction
0
62,103
1
124,206
Yes
output
1
62,103
1
124,207
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other th...
instruction
0
62,104
1
124,208
Yes
output
1
62,104
1
124,209
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other th...
instruction
0
62,105
1
124,210
No
output
1
62,105
1
124,211
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other th...
instruction
0
62,106
1
124,212
No
output
1
62,106
1
124,213
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other th...
instruction
0
62,107
1
124,214
No
output
1
62,107
1
124,215
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response. There are four towns, numbered 1,2,3 and 4. Also, there are three roads. The i-th road connects different towns a_i and b_i bidirectionally. No two roads connect the same pair of towns. Other th...
instruction
0
62,108
1
124,216
No
output
1
62,108
1
124,217
Provide tags and a correct Python 3 solution for this coding contest problem. The map of the capital of Berland can be viewed on the infinite coordinate plane. Each point with integer coordinates contains a building, and there are streets connecting every building to four neighbouring buildings. All streets are parall...
instruction
0
62,407
1
124,814
Tags: brute force, geometry, greedy, implementation Correct Solution: ``` from sys import stdin, stdout n, sx, sy = map(int, stdin.readline().split()) counts = {(1, 0) : 0, (-1, 0) : 0, (0, 1) : 0, (0, -1) : 0} for _ in range(n): x,y = map(int, stdin.readline().split()) if x > sx: counts[(1, 0)]+=1 ...
output
1
62,407
1
124,815
Provide tags and a correct Python 3 solution for this coding contest problem. The map of the capital of Berland can be viewed on the infinite coordinate plane. Each point with integer coordinates contains a building, and there are streets connecting every building to four neighbouring buildings. All streets are parall...
instruction
0
62,408
1
124,816
Tags: brute force, geometry, greedy, implementation Correct Solution: ``` def maxi(l,sx,sy): ans = l[0] index = 0 for i in range(4): if l[i] > ans: ans = l[i] index = i if index == 0: return ans, sx + 1, sy elif index == 1: return ans, sx, sy + 1 e...
output
1
62,408
1
124,817
Provide tags and a correct Python 3 solution for this coding contest problem. The map of the capital of Berland can be viewed on the infinite coordinate plane. Each point with integer coordinates contains a building, and there are streets connecting every building to four neighbouring buildings. All streets are parall...
instruction
0
62,409
1
124,818
Tags: brute force, geometry, greedy, implementation Correct Solution: ``` n, s_x, s_y = map(int, input().split()) east = west = north = south = 0 for i in range(n): x, y = map(int, input().split()) if x < s_x: west += 1 elif x > s_x: east += 1 if y < s_y: # south-west south += 1 elif y > s_y:...
output
1
62,409
1
124,819