message stringlengths 2 22.8k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 16 109k | cluster float64 1 1 | __index_level_0__ int64 32 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was once in a city a and he wanted to go to a city b... | instruction | 0 | 57,608 | 1 | 115,216 |
Tags: constructive algorithms, graphs
Correct Solution:
```
n, k = map(int, input().split())
a,b,c,d = map(int, input().split())
#from random import shuffle
ok = 0
L = [i+1 for i in range(n)]
D = [a,b,c,d]
D.sort(reverse=True)
for i in range(4):
del(L[D[i]-1])
if n == 4 or n >= k:
print(-1)
else:
print(st... | output | 1 | 57,608 | 1 | 115,217 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was once in a city a and he wanted to go to a city b... | instruction | 0 | 57,609 | 1 | 115,218 |
Tags: constructive algorithms, graphs
Correct Solution:
```
import sys
n, k = map(int, input().split())
a, b, c, d = map(int, input().split())
if(k<n+1 or n==4):
print(-1)
sys.exit()
ans = [a, c]
l = [i for i in range(1, n+1) if (i!=a and i!=b and i!=c and i!=d)]
for i in l:
ans.append(i)
ans.extend([d, b])... | output | 1 | 57,609 | 1 | 115,219 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was once in a city a and he wanted to go to a city b... | instruction | 0 | 57,610 | 1 | 115,220 |
Tags: constructive algorithms, graphs
Correct Solution:
```
def main():
n, k = [int(i) for i in input().strip().split()]
a, b, c, d = [int(i) for i in input().strip().split()]
if k <= n or n <= 4:
print(-1)
return
s = [a, b, c, d]
others = [i for i in range(1, n + 1) if i not in s]... | output | 1 | 57,610 | 1 | 115,221 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was o... | instruction | 0 | 57,611 | 1 | 115,222 |
Yes | output | 1 | 57,611 | 1 | 115,223 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was o... | instruction | 0 | 57,612 | 1 | 115,224 |
Yes | output | 1 | 57,612 | 1 | 115,225 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was o... | instruction | 0 | 57,613 | 1 | 115,226 |
Yes | output | 1 | 57,613 | 1 | 115,227 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was o... | instruction | 0 | 57,614 | 1 | 115,228 |
Yes | output | 1 | 57,614 | 1 | 115,229 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was o... | instruction | 0 | 57,615 | 1 | 115,230 |
No | output | 1 | 57,615 | 1 | 115,231 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was o... | instruction | 0 | 57,616 | 1 | 115,232 |
No | output | 1 | 57,616 | 1 | 115,233 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was o... | instruction | 0 | 57,617 | 1 | 115,234 |
No | output | 1 | 57,617 | 1 | 115,235 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Bearland has n cities, numbered 1 through n. Cities are connected via bidirectional roads. Each road connects two distinct cities. No two roads connect the same pair of cities.
Bear Limak was o... | instruction | 0 | 57,618 | 1 | 115,236 |
No | output | 1 | 57,618 | 1 | 115,237 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya is currently at a car rental service, and he wants to reach cinema. The film he has bought a ticket for starts in t minutes. There is a straight road of length s from the service to the cinema. Let's introduce a coordinate system so th... | instruction | 0 | 57,654 | 1 | 115,308 |
Tags: binary search, greedy, sortings
Correct Solution:
```
# Question B. Road to Cinema
import sys
def roadToCinema(V, S, T, stations): # O(M)
"""
V : volume of fuel tank
S : total distance
T : time limit
stations: fuel stations' locations
rtype : boolean, whether this air... | output | 1 | 57,654 | 1 | 115,309 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya is currently at a car rental service, and he wants to reach cinema. The film he has bought a ticket for starts in t minutes. There is a straight road of length s from the service to the cinema. Let's introduce a coordinate system so th... | instruction | 0 | 57,655 | 1 | 115,310 |
Tags: binary search, greedy, sortings
Correct Solution:
```
import sys
input = sys.stdin.readline
N = int(2e5+1)
n, k, s, t = map(int, input().split())
car = [list(map(int, input().split())) for _ in range(n)]
g = sorted(list(map(int, input().split()))) + [0]
g[k] = s - g[k - 1]
for i in range(k-1, 0, -1):
g[i] -=... | output | 1 | 57,655 | 1 | 115,311 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vasya is currently at a car rental service, and he wants to reach cinema. The film he has bought a ticket for starts in t minutes. There is a straight road of length s from the service to the cinema. Let's introduce a coordinate system so th... | instruction | 0 | 57,656 | 1 | 115,312 |
Tags: binary search, greedy, sortings
Correct Solution:
```
# Question B. Road to Cinema
import sys
def roadToCinema(V, S, T, stations): # O(M)
"""
V : volume of fuel tank
S : total distance
T : time limit
stations: fuel stations' locations
rtype : boolean, whether this air... | output | 1 | 57,656 | 1 | 115,313 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya is currently at a car rental service, and he wants to reach cinema. The film he has bought a ticket for starts in t minutes. There is a straight road of length s from the service to the ci... | instruction | 0 | 57,657 | 1 | 115,314 |
No | output | 1 | 57,657 | 1 | 115,315 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya is currently at a car rental service, and he wants to reach cinema. The film he has bought a ticket for starts in t minutes. There is a straight road of length s from the service to the ci... | instruction | 0 | 57,658 | 1 | 115,316 |
No | output | 1 | 57,658 | 1 | 115,317 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya is currently at a car rental service, and he wants to reach cinema. The film he has bought a ticket for starts in t minutes. There is a straight road of length s from the service to the ci... | instruction | 0 | 57,659 | 1 | 115,318 |
No | output | 1 | 57,659 | 1 | 115,319 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Vasya is currently at a car rental service, and he wants to reach cinema. The film he has bought a ticket for starts in t minutes. There is a straight road of length s from the service to the ci... | instruction | 0 | 57,660 | 1 | 115,320 |
No | output | 1 | 57,660 | 1 | 115,321 |
Provide a correct Python 3 solution for this coding contest problem.
Snuke has decided to play a game, where the player runs a railway company. There are M+1 stations on Snuke Line, numbered 0 through M. A train on Snuke Line stops at station 0 and every d-th station thereafter, where d is a predetermined constant for... | instruction | 0 | 57,868 | 1 | 115,736 |
"Correct Solution:
```
from collections import defaultdict
N, M = map(int, input().split())
section = [list(map(int, input().split())) for i in range(N)]
# 区間の大きさごとに分類
D = defaultdict(list)
for sec in section:
D[sec[1] - sec[0] + 1].append(sec)
class BinaryIndexedTree:
def __init__(self, n):
self.siz... | output | 1 | 57,868 | 1 | 115,737 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Snuke has decided to play a game, where the player runs a railway company. There are M+1 stations on Snuke Line, numbered 0 through M. A train on Snuke Line stops at station 0 and every d-th sta... | instruction | 0 | 57,875 | 1 | 115,750 |
Yes | output | 1 | 57,875 | 1 | 115,751 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Snuke has decided to play a game, where the player runs a railway company. There are M+1 stations on Snuke Line, numbered 0 through M. A train on Snuke Line stops at station 0 and every d-th sta... | instruction | 0 | 57,877 | 1 | 115,754 |
Yes | output | 1 | 57,877 | 1 | 115,755 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Snuke has decided to play a game, where the player runs a railway company. There are M+1 stations on Snuke Line, numbered 0 through M. A train on Snuke Line stops at station 0 and every d-th sta... | instruction | 0 | 57,878 | 1 | 115,756 |
Yes | output | 1 | 57,878 | 1 | 115,757 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Snuke has decided to play a game, where the player runs a railway company. There are M+1 stations on Snuke Line, numbered 0 through M. A train on Snuke Line stops at station 0 and every d-th sta... | instruction | 0 | 57,879 | 1 | 115,758 |
No | output | 1 | 57,879 | 1 | 115,759 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Snuke has decided to play a game, where the player runs a railway company. There are M+1 stations on Snuke Line, numbered 0 through M. A train on Snuke Line stops at station 0 and every d-th sta... | instruction | 0 | 57,880 | 1 | 115,760 |
No | output | 1 | 57,880 | 1 | 115,761 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Snuke has decided to play a game, where the player runs a railway company. There are M+1 stations on Snuke Line, numbered 0 through M. A train on Snuke Line stops at station 0 and every d-th sta... | instruction | 0 | 57,881 | 1 | 115,762 |
No | output | 1 | 57,881 | 1 | 115,763 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Snuke has decided to play a game, where the player runs a railway company. There are M+1 stations on Snuke Line, numbered 0 through M. A train on Snuke Line stops at station 0 and every d-th sta... | instruction | 0 | 57,882 | 1 | 115,764 |
No | output | 1 | 57,882 | 1 | 115,765 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N stations in the city where JOI lives, and they are numbered 1, 2, ..., and N, respectively. In addition, there are M railway lines, numbered 1, 2, ..., and M, respectively. The railw... | instruction | 0 | 57,932 | 1 | 115,864 |
No | output | 1 | 57,932 | 1 | 115,865 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N stations in the city where JOI lives, and they are numbered 1, 2, ..., and N, respectively. In addition, there are M railway lines, numbered 1, 2, ..., and M, respectively. The railw... | instruction | 0 | 57,933 | 1 | 115,866 |
No | output | 1 | 57,933 | 1 | 115,867 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Some country consists of n cities, connected by a railroad network. The transport communication of the country is so advanced that the network consists of a minimum required number of (n - 1) bi... | instruction | 0 | 58,450 | 1 | 116,900 |
No | output | 1 | 58,450 | 1 | 116,901 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Some country consists of n cities, connected by a railroad network. The transport communication of the country is so advanced that the network consists of a minimum required number of (n - 1) bi... | instruction | 0 | 58,451 | 1 | 116,902 |
No | output | 1 | 58,451 | 1 | 116,903 |
Provide tags and a correct Python 3 solution for this coding contest problem.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, best friends are important too. John is Chris' b... | instruction | 0 | 58,501 | 1 | 117,002 |
Tags: geometry, implementation
Correct Solution:
```
f = lambda: map(int, input().split())
n, w, v, u = f()
k = t = 0
v /= u
for i in range(n):
x, y = f()
d = x / v - y
k |= d < 0
t = max(t, d)
if k: w += t
print(w / u)
``` | output | 1 | 58,501 | 1 | 117,003 |
Provide tags and a correct Python 3 solution for this coding contest problem.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, best friends are important too. John is Chris' b... | instruction | 0 | 58,502 | 1 | 117,004 |
Tags: geometry, implementation
Correct Solution:
```
n, w, v, u = map(int, input().split())
ans = 0
flag1 = 0
flag2 = 0
for i in range(n):
x, y = map(int, input().split())
if x/v < y/u:
flag1 = 1
if x/v > y/u:
flag2 = 1
ans = max(ans, x/v+(w-y)/u)
if flag1+flag2 == 2:
print(ans)
el... | output | 1 | 58,502 | 1 | 117,005 |
Provide tags and a correct Python 3 solution for this coding contest problem.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, best friends are important too. John is Chris' b... | instruction | 0 | 58,503 | 1 | 117,006 |
Tags: geometry, implementation
Correct Solution:
```
n,w,v,u = map(int,input().split())
maxwait=0.0
curr=1;
for i in range(n):
x,y = map(int,input().split())
maxwait=max(maxwait,x/v-y/u)
if(x/v<y/u):
curr=0
if(curr==1):
maxwait=0
print (w/u + maxwait)
``` | output | 1 | 58,503 | 1 | 117,007 |
Provide tags and a correct Python 3 solution for this coding contest problem.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, best friends are important too. John is Chris' b... | instruction | 0 | 58,504 | 1 | 117,008 |
Tags: geometry, implementation
Correct Solution:
```
import sys
def main():
n,w,v,u = list(map(int, sys.stdin.readline().split()))
c = []
for i in range(n):
c.append(list(map(int, sys.stdin.readline().split())))
ymin = 10**9+1
iymin = 0
ymax = -1
iymax = 0
xmax = -1
i... | output | 1 | 58,504 | 1 | 117,009 |
Provide tags and a correct Python 3 solution for this coding contest problem.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, best friends are important too. John is Chris' b... | instruction | 0 | 58,505 | 1 | 117,010 |
Tags: geometry, implementation
Correct Solution:
```
class vec(object):
def __init__(self, x, y):
self.x, self.y = x, y
def cross(self, k):
return self.x * k.y - self.y * k.x
def dot(self, k):
return self.x * k.x + self.y * k.y
def __sub__(self, k):
return vec(self.x - k.... | output | 1 | 58,505 | 1 | 117,011 |
Provide tags and a correct Python 3 solution for this coding contest problem.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, best friends are important too. John is Chris' b... | instruction | 0 | 58,506 | 1 | 117,012 |
Tags: geometry, implementation
Correct Solution:
```
n,w,v,u=map(int,input().split())
x,y=list(map(int,input().split()))
razn=ozhid=v*y-x*u
for i in range(1,n):
x,y=map(int,input().split())
r=v*y-x*u
if r>razn:
razn=r
if r<ozhid:
ozhid=r
if ozhid>=0 or razn<=0:
print(w/u)
else:
p... | output | 1 | 58,506 | 1 | 117,013 |
Provide tags and a correct Python 3 solution for this coding contest problem.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, best friends are important too. John is Chris' b... | instruction | 0 | 58,507 | 1 | 117,014 |
Tags: geometry, implementation
Correct Solution:
```
n, w, v, u = map(int, input().split())
max_t_w = 0
flag = True
for i in range(n):
x, y = map(int, input().split())
max_t_w = max(max_t_w, x / v - y / u)
if x / v < y / u:
flag = False
if flag:
max_t_w = 0
print(w / u + max_t_w)
``` | output | 1 | 58,507 | 1 | 117,015 |
Provide tags and a correct Python 3 solution for this coding contest problem.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, best friends are important too. John is Chris' b... | instruction | 0 | 58,508 | 1 | 117,016 |
Tags: geometry, implementation
Correct Solution:
```
import sys
input = sys.stdin.readline
def solve():
n, w, v, u = map(int, input().split())
mx = int(1e13)
Mx = int(-1e13)
for i in range(n):
x, y = map(int, input().split())
xx = x * u - v * y
mx = min(mx, xx)
Mx = max(Mx, xx)
if mx >= 0 or Mx <= 0:
p... | output | 1 | 58,508 | 1 | 117,017 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, b... | instruction | 0 | 58,509 | 1 | 117,018 |
Yes | output | 1 | 58,509 | 1 | 117,019 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, b... | instruction | 0 | 58,510 | 1 | 117,020 |
Yes | output | 1 | 58,510 | 1 | 117,021 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, b... | instruction | 0 | 58,511 | 1 | 117,022 |
Yes | output | 1 | 58,511 | 1 | 117,023 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, b... | instruction | 0 | 58,512 | 1 | 117,024 |
Yes | output | 1 | 58,512 | 1 | 117,025 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, b... | instruction | 0 | 58,513 | 1 | 117,026 |
No | output | 1 | 58,513 | 1 | 117,027 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, b... | instruction | 0 | 58,514 | 1 | 117,028 |
No | output | 1 | 58,514 | 1 | 117,029 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, b... | instruction | 0 | 58,515 | 1 | 117,030 |
No | output | 1 | 58,515 | 1 | 117,031 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
And while Mishka is enjoying her trip...
Chris is a little brown bear. No one knows, where and when he met Mishka, but for a long time they are together (excluding her current trip). However, b... | instruction | 0 | 58,516 | 1 | 117,032 |
No | output | 1 | 58,516 | 1 | 117,033 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova plans to go to the conference by train. Initially, the train is at the point 1 and the destination point of the path is the point L. The speed of the train is 1 length unit per minute (i.e. at the first minute the train is at the point ... | instruction | 0 | 58,848 | 1 | 117,696 |
Tags: math
Correct Solution:
```
for i in range(int(input())):
l,v,li,ri=[int(num) for num in input().split()]
c=v
if l%v!=0:
c1=l-l%v
else:
c1=l
if li%v!=0:
c2=li+abs(v-li%v)
else:
c2=li
if ri%v!=0:
c3=ri-ri%v
else:
c3=ri
tot=((c1-c)//... | output | 1 | 58,848 | 1 | 117,697 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova plans to go to the conference by train. Initially, the train is at the point 1 and the destination point of the path is the point L. The speed of the train is 1 length unit per minute (i.e. at the first minute the train is at the point ... | instruction | 0 | 58,849 | 1 | 117,698 |
Tags: math
Correct Solution:
```
from collections import Counter, defaultdict
BS="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
def to_base(s, b):
res = ""
while s:
res+=BS[s%b]
s//= b
return res[::-1] or "0"
alpha = "abcdefghijklmnopqrstuvwxyz"
from math import floor, ceil,pi
primes = [2,3,5,7,11... | output | 1 | 58,849 | 1 | 117,699 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova plans to go to the conference by train. Initially, the train is at the point 1 and the destination point of the path is the point L. The speed of the train is 1 length unit per minute (i.e. at the first minute the train is at the point ... | instruction | 0 | 58,850 | 1 | 117,700 |
Tags: math
Correct Solution:
```
t = int(input())
for i in range(t):
L, u, l, r = map(int, input().split())
print((L//u)+((l-1)//u)-(r//u))
``` | output | 1 | 58,850 | 1 | 117,701 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Vova plans to go to the conference by train. Initially, the train is at the point 1 and the destination point of the path is the point L. The speed of the train is 1 length unit per minute (i.e. at the first minute the train is at the point ... | instruction | 0 | 58,851 | 1 | 117,702 |
Tags: math
Correct Solution:
```
t=int(input())
for _ in range(0,t):
L,v,l,r=map(int,input().split())
if(l%v!=0):
c1=l//v
else:
c1=l//v-1
c2=L//v
x=r//v
c2-=x
print(c1+c2)
``` | output | 1 | 58,851 | 1 | 117,703 |
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