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.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right footprint on the i-th block. Similarly, if one mov... | instruction | 0 | 7,867 | 1 | 15,734 |
Tags: greedy, implementation
Correct Solution:
```
n=int(input())
s=input()
se=set(s)
if "L" not in s:print(s.index("R")+1,n+1-s[::-1].index("R"))
elif "R" not in s:print(n-s[::-1].index("L"),s.index("L"))
else: print(s.index("R")+1,s.index("L"))
``` | output | 1 | 7,867 | 1 | 15,735 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right footprint on the i-th block. Similarly, if one mov... | instruction | 0 | 7,868 | 1 | 15,736 |
Tags: greedy, implementation
Correct Solution:
```
n = int(input())
footprints = input()
firstR = n+1
lastR = 0
firstL = n+1
lastL=0
for i in range(n):
if(footprints[i]=='.'):
continue
if(footprints[i]=='R'):
firstR = min(firstR,i+1)
lastR = max(lastR,i+1)
else:
firstL = min(... | output | 1 | 7,868 | 1 | 15,737 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right footprint on the i-th block. Similarly, if one mov... | instruction | 0 | 7,869 | 1 | 15,738 |
Tags: greedy, implementation
Correct Solution:
```
n = int(input())
s = str(input())
a, b = 0, 0
if 'R' in s and 'L' in s:
a = s.find('R')
b = s.rfind('R')
elif 'R' in s:
a = s.find('R')
b = s.rfind('R') + 1
else:
a = s.rfind('L')
b = s.find('L')-1
print(a+1, b+1)
``` | output | 1 | 7,869 | 1 | 15,739 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right footprint on the i-th block. Similarly, if one mov... | instruction | 0 | 7,870 | 1 | 15,740 |
Tags: greedy, implementation
Correct Solution:
```
from sys import stdin
def footprints(steps):
if steps.count('R') == 0:
return len(steps) - steps[-1::-1].find('L'), steps.find('L')
elif steps.count('L') == 0:
return steps.find('R') + 1, len(steps) - steps[-1::-1].find('R') + 1
else:
... | output | 1 | 7,870 | 1 | 15,741 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right footprint on the i-th block. Similarly, if one mov... | instruction | 0 | 7,871 | 1 | 15,742 |
Tags: greedy, implementation
Correct Solution:
```
arg = int(input())
s2=input()
start = -1
ending = -1
flag9 = 0
if "R" in s2:
for n in range(0, arg):
if s2[n]=="R" and flag9 == 0:
start = n + 1
flag9 = 1
if s2[n]== "R" and s2[n+1] == "L":
ending = n + 1
elif s2[n] == "R":
ending = n + 2
else:... | output | 1 | 7,871 | 1 | 15,743 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right footprint on the i-th block. Similarly, if one mov... | instruction | 0 | 7,872 | 1 | 15,744 |
Tags: greedy, implementation
Correct Solution:
```
n=int(input())
x=input()
a=list(set(x))
if 'R' in a and 'L' not in a:
s=x.index('R')
t=x.rindex('R')+1
elif 'L' in a and 'R' not in a:
s=x.rindex('L')
t=x.index('L')-1
else:
s=x.index('R')
t=x.rindex('R')
print(s+1,t+1)
``` | output | 1 | 7,872 | 1 | 15,745 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right footprint on the i-th block. Similarly, if one mov... | instruction | 0 | 7,873 | 1 | 15,746 |
Tags: greedy, implementation
Correct Solution:
```
n = int(input())
ft = input()
r = ft.count('R')
l = ft.count('L')
if r==0:
t = ft.index('L')
for i in range(t,n-1):
if ft[i+1]=='.':
s=i+1
break
print(s,t)
elif l==0:
s = ft.index('R')
for i in range(s,n-1):
... | output | 1 | 7,873 | 1 | 15,747 |
Provide tags and a correct Python 3 solution for this coding contest problem.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right footprint on the i-th block. Similarly, if one mov... | instruction | 0 | 7,874 | 1 | 15,748 |
Tags: greedy, implementation
Correct Solution:
```
#!/usr/bin/env python
import os
import re
import sys
from bisect import bisect, bisect_left, insort, insort_left
from collections import Counter, defaultdict, deque
from copy import deepcopy
from decimal import Decimal
from fractions import gcd
from io import BytesIO, ... | output | 1 | 7,874 | 1 | 15,749 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right foo... | instruction | 0 | 7,875 | 1 | 15,750 |
Yes | output | 1 | 7,875 | 1 | 15,751 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right foo... | instruction | 0 | 7,876 | 1 | 15,752 |
Yes | output | 1 | 7,876 | 1 | 15,753 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right foo... | instruction | 0 | 7,877 | 1 | 15,754 |
Yes | output | 1 | 7,877 | 1 | 15,755 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right foo... | instruction | 0 | 7,878 | 1 | 15,756 |
Yes | output | 1 | 7,878 | 1 | 15,757 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right foo... | instruction | 0 | 7,879 | 1 | 15,758 |
No | output | 1 | 7,879 | 1 | 15,759 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right foo... | instruction | 0 | 7,880 | 1 | 15,760 |
No | output | 1 | 7,880 | 1 | 15,761 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right foo... | instruction | 0 | 7,881 | 1 | 15,762 |
No | output | 1 | 7,881 | 1 | 15,763 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a straight snowy road, divided into n blocks. The blocks are numbered from 1 to n from left to right. If one moves from the i-th block to the (i + 1)-th block, he will leave a right foo... | instruction | 0 | 7,882 | 1 | 15,764 |
No | output | 1 | 7,882 | 1 | 15,765 |
Provide tags and a correct Python 3 solution for this coding contest problem.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the railway cars in the order of increasing numbers. I... | instruction | 0 | 7,961 | 1 | 15,922 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n = int(input())
arr = map(int,input().split())
li=[0]*(n+1)
for i in arr:
li[i]=li[i-1]+1
print(n-max(li))
``` | output | 1 | 7,961 | 1 | 15,923 |
Provide tags and a correct Python 3 solution for this coding contest problem.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the railway cars in the order of increasing numbers. I... | instruction | 0 | 7,963 | 1 | 15,926 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n = int(input())
p = list(map(int,input().split()))
idx = [None]*(n+1)
for i,x in enumerate(p):
idx[x] = i
maxi = 1
l = 1
for i in range(1,n):
if idx[i] < idx[i+1]:
l += 1
if l > maxi:
maxi = l
else:
l = 1
pri... | output | 1 | 7,963 | 1 | 15,927 |
Provide tags and a correct Python 3 solution for this coding contest problem.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the railway cars in the order of increasing numbers. I... | instruction | 0 | 7,964 | 1 | 15,928 |
Tags: constructive algorithms, greedy
Correct Solution:
```
__author__ = 'MoonBall'
import sys
# sys.stdin = open('data/C.in', 'r')
T = 1
def process():
# 2 4 3 1 -> 2 3 1 4 -> 1 2 3 4
# 倧ηεΎε移οΌε°ηεΎε移
# 1 4 3 2 -> 1 4 2 3 -> 1 2 3 4
# ζ倧ηθΏη»ζ°
N = int(input())
a = list(map(int, input().split()))
... | output | 1 | 7,964 | 1 | 15,929 |
Provide tags and a correct Python 3 solution for this coding contest problem.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the railway cars in the order of increasing numbers. I... | instruction | 0 | 7,965 | 1 | 15,930 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n = int(input())
v = list(map(int, input().split()))
uns = dict()
for i in range(n):
uns[i + 1] = -1
for i in range(n):
if v[i] != 1 and uns[v[i] - 1] != -1:
uns[v[i]] = uns[v[i] - 1] + 1
else:
uns[v[i]] = 1
print(n - max(uns.values... | output | 1 | 7,965 | 1 | 15,931 |
Provide tags and a correct Python 3 solution for this coding contest problem.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the railway cars in the order of increasing numbers. I... | instruction | 0 | 7,966 | 1 | 15,932 |
Tags: constructive algorithms, greedy
Correct Solution:
```
# from dust i have come dust i will be
n=int(input())
a=list(map(int,input().split()))
mp=[0]*(n+1)
for i in range(n):
mp[a[i]]=i+1
cnt=0;mx=1
for i in range(1,n):
if mp[i]<mp[i+1]:
cnt+=1
else:
mx=max(mx,cnt+1)
cnt=0
... | output | 1 | 7,966 | 1 | 15,933 |
Provide tags and a correct Python 3 solution for this coding contest problem.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the railway cars in the order of increasing numbers. I... | instruction | 0 | 7,967 | 1 | 15,934 |
Tags: constructive algorithms, greedy
Correct Solution:
```
n = int(input())
vagons = tuple(map(int, input().split()))
res = [0] * (n)
places = [0] * (n + 1)
for i in range(n):
places[vagons[i]] = i
for i in range(n - 1, -1, -1):
v = vagons[i]
if v < n:
res[i] = res[places[v + 1]] + 1
else: res[... | output | 1 | 7,967 | 1 | 15,935 |
Provide tags and a correct Python 3 solution for this coding contest problem.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the railway cars in the order of increasing numbers. I... | instruction | 0 | 7,968 | 1 | 15,936 |
Tags: constructive algorithms, greedy
Correct Solution:
```
import sys
lines = sys.stdin.readlines()
N = int(lines[0])
a = list(map(int, lines[1].split(' ')))
b = [-1 for _ in a]
for i, x in enumerate(a):
b[x-1] = i
cur_len = max_len = 1
for i in range(1, N):
if b[i-1] < b[i]:
cur_len += 1
else:
cur_len = 1
... | output | 1 | 7,968 | 1 | 15,937 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the rai... | instruction | 0 | 7,969 | 1 | 15,938 |
Yes | output | 1 | 7,969 | 1 | 15,939 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the rai... | instruction | 0 | 7,970 | 1 | 15,940 |
Yes | output | 1 | 7,970 | 1 | 15,941 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the rai... | instruction | 0 | 7,971 | 1 | 15,942 |
Yes | output | 1 | 7,971 | 1 | 15,943 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the rai... | instruction | 0 | 7,972 | 1 | 15,944 |
Yes | output | 1 | 7,972 | 1 | 15,945 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the rai... | instruction | 0 | 7,973 | 1 | 15,946 |
No | output | 1 | 7,973 | 1 | 15,947 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the rai... | instruction | 0 | 7,974 | 1 | 15,948 |
No | output | 1 | 7,974 | 1 | 15,949 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the rai... | instruction | 0 | 7,975 | 1 | 15,950 |
No | output | 1 | 7,975 | 1 | 15,951 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the rai... | instruction | 0 | 7,976 | 1 | 15,952 |
No | output | 1 | 7,976 | 1 | 15,953 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are located in different towns.
Recently, the pr... | instruction | 0 | 8,025 | 1 | 16,050 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
from collections import defaultdict
def put(): return map(int, input().split())
def dfs():
s = [(1,0)]
ans = 0
vis = [0]*(n+1)
while s:
i,p = s.pop()
if vis[i]==0:
vis[i]=1
s.append((i,p))
... | output | 1 | 8,025 | 1 | 16,051 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are located in different towns.
Recently, the pr... | instruction | 0 | 8,026 | 1 | 16,052 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
def bfs(source):
q = [0] * (n + 1);
fa = [-1] * n
l, r = [1] * 2
fa[source] = source
q[1] = source
while l <= r:
x = q[l]
l += 1
for y in e[x]:
if fa[y] == -1:
fa[y] = x
... | output | 1 | 8,026 | 1 | 16,053 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are located in different towns.
Recently, the pr... | instruction | 0 | 8,027 | 1 | 16,054 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
n, k = map(int, input().split())
s = [0] * n
for i in map(int, input().split()):
s[i - 1] = 1
e = [[] for _ in range(n)]
for _ in range(n - 1):
x, y = (int(s) - 1 for s in input().split())
e[x].append(y)
e[y].append(x)
q, fa = [0], [-1] * n
... | output | 1 | 8,027 | 1 | 16,055 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are located in different towns.
Recently, the pr... | instruction | 0 | 8,028 | 1 | 16,056 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
WHITE = 0
GRAY = 1
BLACK = 2
def dfs_iter(G,u=0):
stack = []
stack.append({"u":u,"v":0,"started": False})
while len(stack) != 0 :
current = stack[len(stack)-1]
u = current["u"]
v_index = current["v"]
started = c... | output | 1 | 8,028 | 1 | 16,057 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are located in different towns.
Recently, the pr... | instruction | 0 | 8,029 | 1 | 16,058 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
def parser():
return [int(x) for x in input().split(" ")]
def DFS():
visited[0]=True
stack=[]
intruduction_order=[]
stack.append(0)
while len(stack)>0:
v=stack.pop()
for u in adjacents_list[v]:
if not vis... | output | 1 | 8,029 | 1 | 16,059 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are located in different towns.
Recently, the pr... | instruction | 0 | 8,030 | 1 | 16,060 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
#parsea una lΓnea
def parser():
return [int(x) for x in input().split()]
#MΓ©todo usado para contar las universidades en cada subΓ‘rbol
def DFS():
visited[0]=True
stack=[]
introduction_order=[]
stack.append(0)
while len(stack)>0:
... | output | 1 | 8,030 | 1 | 16,061 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are located in different towns.
Recently, the pr... | instruction | 0 | 8,031 | 1 | 16,062 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
def main():
n, k = map(int, input().split())
s = [0] * n
for i in map(int, input().split()):
s[i - 1] = 1
e = [[] for _ in range(n)]
for _ in range(n - 1):
x, y = (int(s) - 1 for s in input().split())
e[x].append(... | output | 1 | 8,031 | 1 | 16,063 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are located in different towns.
Recently, the pr... | instruction | 0 | 8,032 | 1 | 16,064 |
Tags: dfs and similar, dp, graphs, trees
Correct Solution:
```
from collections import defaultdict
from sys import stdin
def put(): return map(int, stdin.readline().split())
def dfs():
s = [(1,0)]
ans = 0
vis = [0]*(n+1)
while s:
i,p = s.pop()
if vis[i]==0:
vis[i]=1
... | output | 1 | 8,032 | 1 | 16,065 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are... | instruction | 0 | 8,033 | 1 | 16,066 |
Yes | output | 1 | 8,033 | 1 | 16,067 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are... | instruction | 0 | 8,034 | 1 | 16,068 |
Yes | output | 1 | 8,034 | 1 | 16,069 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are... | instruction | 0 | 8,035 | 1 | 16,070 |
No | output | 1 | 8,035 | 1 | 16,071 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are... | instruction | 0 | 8,036 | 1 | 16,072 |
No | output | 1 | 8,036 | 1 | 16,073 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are... | instruction | 0 | 8,037 | 1 | 16,074 |
No | output | 1 | 8,037 | 1 | 16,075 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Treeland is a country in which there are n towns connected by n - 1 two-way road such that it's possible to get from any town to any other town.
In Treeland there are 2k universities which are... | instruction | 0 | 8,038 | 1 | 16,076 |
No | output | 1 | 8,038 | 1 | 16,077 |
Provide a correct Python 3 solution for this coding contest problem.
There are N towns in Takahashi Kingdom. They are conveniently numbered 1 through N.
Takahashi the king is planning to go on a tour of inspection for M days. He will determine a sequence of towns c, and visit town c_i on the i-th day. That is, on the... | instruction | 0 | 8,947 | 1 | 17,894 |
"Correct Solution:
```
mod=10**9+7
N,M=map(int,input().split())
dp=[[0 for i in range(N+1)] for j in range(N+1)]
dp[N][N]=1
for i in range(M-1,-1,-1):
for k in range(1,N+1):
for j in range(k,N+1):
if j==k:
if j<N:
dp[j][k]=(j*dp[j][k]+(N-j)*dp[j+1][k])%mod
... | output | 1 | 8,947 | 1 | 17,895 |
Provide a correct Python 3 solution for this coding contest problem.
There are N towns in Takahashi Kingdom. They are conveniently numbered 1 through N.
Takahashi the king is planning to go on a tour of inspection for M days. He will determine a sequence of towns c, and visit town c_i on the i-th day. That is, on the... | instruction | 0 | 8,948 | 1 | 17,896 |
"Correct Solution:
```
mod = 1000000007
eps = 10**-9
def main():
import sys
input = sys.stdin.readline
N, M = map(int, input().split())
dp = [[0] * N for _ in range(N+1)]
dp[1][0] = 1
for i in range(M):
dp_new = [[0] * N for _ in range(N+1)]
for j in range(N+1):
fo... | output | 1 | 8,948 | 1 | 17,897 |
Provide a correct Python 3 solution for this coding contest problem.
There are N towns in Takahashi Kingdom. They are conveniently numbered 1 through N.
Takahashi the king is planning to go on a tour of inspection for M days. He will determine a sequence of towns c, and visit town c_i on the i-th day. That is, on the... | instruction | 0 | 8,949 | 1 | 17,898 |
"Correct Solution:
```
n,m = map(int,input().split())
mod = 10**9+7
dp = [[[0 for i in range(j+1)] for j in range(n+1)] for k in range(m+1)]
dp[0][1][1] = 1
for i in range(m):
for j in range(n+1):
for k in range(j+1):
x = dp[i][j][k]
if j < n:
dp[i+1][j+1][k] += x*(n-j)
dp[i+1][j+1][k]... | output | 1 | 8,949 | 1 | 17,899 |
Provide a correct Python 3 solution for this coding contest problem.
There are N towns in Takahashi Kingdom. They are conveniently numbered 1 through N.
Takahashi the king is planning to go on a tour of inspection for M days. He will determine a sequence of towns c, and visit town c_i on the i-th day. That is, on the... | instruction | 0 | 8,950 | 1 | 17,900 |
"Correct Solution:
```
import sys
readline = sys.stdin.readline
N, M = map(int, readline().split())
MOD = 10**9+7
dpscc = [[0]*(N+1) for _ in range(N+1)]
dpus = [[0]*(N+1) for _ in range(N+1)]
dpscc[1][0] = 1
for m in range(M):
dpscc2 = [[0]*(N+1) for _ in range(N+1)]
dpus2 = [[0]*(N+1) for _ in range(N+1)]
... | output | 1 | 8,950 | 1 | 17,901 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There are N towns in Takahashi Kingdom. They are conveniently numbered 1 through N.
Takahashi the king is planning to go on a tour of inspection for M days. He will determine a sequence of town... | instruction | 0 | 8,951 | 1 | 17,902 |
No | output | 1 | 8,951 | 1 | 17,903 |
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