message stringlengths 2 48.6k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 318 108k | cluster float64 8 8 | __index_level_0__ int64 636 217k |
|---|---|---|---|---|---|
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Luckily, Serval got onto the right bus, and he came to the kindergarten on time. After coming to kindergarten, he found the toy bricks very funny.
He has a special interest to create difficult ... | instruction | 0 | 66,509 | 8 | 133,018 |
No | output | 1 | 66,509 | 8 | 133,019 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Luckily, Serval got onto the right bus, and he came to the kindergarten on time. After coming to kindergarten, he found the toy bricks very funny.
He has a special interest to create difficult ... | instruction | 0 | 66,510 | 8 | 133,020 |
No | output | 1 | 66,510 | 8 | 133,021 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Luckily, Serval got onto the right bus, and he came to the kindergarten on time. After coming to kindergarten, he found the toy bricks very funny.
He has a special interest to create difficult ... | instruction | 0 | 66,511 | 8 | 133,022 |
No | output | 1 | 66,511 | 8 | 133,023 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Luckily, Serval got onto the right bus, and he came to the kindergarten on time. After coming to kindergarten, he found the toy bricks very funny.
He has a special interest to create difficult ... | instruction | 0 | 66,512 | 8 | 133,024 |
No | output | 1 | 66,512 | 8 | 133,025 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Squirrel Liss loves nuts. There are n trees (numbered 1 to n from west to east) along a street and there is a delicious nut on the top of each tree. The height of the tree i is hi. Liss wants to eat all nuts.
Now Liss is on the root of the ... | instruction | 0 | 66,705 | 8 | 133,410 |
Tags: greedy, implementation
Correct Solution:
```
def main():
n = int(input())
cur_h = 0
res = 0
for _ in range(n):
h = int(input())
res += abs(cur_h - h)
cur_h = h
print(res + n * 2 - 1)
if __name__ == '__main__':
main()
``` | output | 1 | 66,705 | 8 | 133,411 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] represents the calories burned by performing worko... | instruction | 0 | 66,739 | 8 | 133,478 |
Tags: dp
Correct Solution:
```
import sys
from math import *
def minp():
return sys.stdin.readline().strip()
def mint():
return int(minp())
def mints():
return map(int, minp().split())
n, m = mints()
a = [0]*n
dp1 = [0]*n
dp2 = [0]*n
dp3 = [0]*n
dp4 = [0]*n
for i in range(n):
a[i] = list(mints())
dp1[i] = [0]*... | output | 1 | 66,739 | 8 | 133,479 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] represents the calories burned by performing worko... | instruction | 0 | 66,740 | 8 | 133,480 |
Tags: dp
Correct Solution:
```
# by the authority of GOD author: manhar singh sachdev #
import os,sys
from io import BytesIO, IOBase
def main():
n,m = map(int,input().split())
arr = [list(map(int,input().split())) for _ in range(n)]
dp1 = [[0]*(m+2) for _ in range(n+2)]
for i in range(1,n+1):
... | output | 1 | 66,740 | 8 | 133,481 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] represents the calories burned by performing worko... | instruction | 0 | 66,741 | 8 | 133,482 |
Tags: dp
Correct Solution:
```
def main():
n, m = map(int, input().split())
aa = []
for _ in range(n):
row = list(map(int, input().split()))
row.append(0)
aa.append(row)
aa.append([0] * (m + 1))
d1, d2, d3, d4 = ([[0] * (m + 1) for _ in range(n + 1)] for _ in (1, 2, 3, 4))
... | output | 1 | 66,741 | 8 | 133,483 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] represents the calories burned by performing worko... | instruction | 0 | 66,742 | 8 | 133,484 |
Tags: dp
Correct Solution:
```
n, m = map(int, input().strip().split())
dp1, dp2, dp3, dp4 = [[[0 for i in range(m+1)] for i in range(n+1)] for i in range(4)]
a = []
for i in range(n):
a.append(list(map(int, input().strip().split())))
for i in range(n):
for j in range(m):
dp1[i][j] = a[i][j] + max(dp1... | output | 1 | 66,742 | 8 | 133,485 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] represents the calories burned by performing worko... | instruction | 0 | 66,743 | 8 | 133,486 |
Tags: dp
Correct Solution:
```
n, m = map(int, input().strip().split())
dp1, dp2, dp3, dp4 = [[[0 for i in range(m+1)] for i in range(n+1)] for i in range(4)]
# print(dp1)
# print(dp2)
# print(dp3)
# print(dp4)
a = []
for i in range(n):
a.append(list(map(int, input().strip().split())))
for i in range(n):
for... | output | 1 | 66,743 | 8 | 133,487 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] represents the calories burned by performing worko... | instruction | 0 | 66,744 | 8 | 133,488 |
Tags: dp
Correct Solution:
```
import sys
input=sys.stdin.readline
R = lambda: map(int, input().split())
n, m = R()
g = [list() for i in range(n)]
for i in range(n):
g[i] = list(R())
dp1, dp2, dp3, dp4 = ([[0] * (m + 1) for j in range(n + 1)] for i in range(4))
for i in range(n):
for j in range(m):
dp1[... | output | 1 | 66,744 | 8 | 133,489 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] represents the calories burned by performing worko... | instruction | 0 | 66,745 | 8 | 133,490 |
Tags: dp
Correct Solution:
```
from sys import stdin,stdout
import sys
from bisect import bisect_left,bisect_right
import heapq
sys.setrecursionlimit(2*(10**5))
# stdin = open("input.txt", "r");
# stdout = open("output.txt", "w");
n,m=stdin.readline().strip().split(' ')
n,m=int(n),int(m)
costarr=[]
for i in range(n)... | output | 1 | 66,745 | 8 | 133,491 |
Provide tags and a correct Python 3 solution for this coding contest problem.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] represents the calories burned by performing worko... | instruction | 0 | 66,746 | 8 | 133,492 |
Tags: dp
Correct Solution:
```
R = lambda: map(int, input().split())
n, m = R()
g = [list() for i in range(n)]
for i in range(n):
g[i] = list(R())
dp1, dp2, dp3, dp4 = ([[0] * (m + 1) for j in range(n + 1)] for i in range(4))
for i in range(n):
for j in range(m):
dp1[i][j] = g[i][j] + max(dp1[i - 1][j],... | output | 1 | 66,746 | 8 | 133,493 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] rep... | instruction | 0 | 66,747 | 8 | 133,494 |
Yes | output | 1 | 66,747 | 8 | 133,495 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] rep... | instruction | 0 | 66,748 | 8 | 133,496 |
Yes | output | 1 | 66,748 | 8 | 133,497 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] rep... | instruction | 0 | 66,749 | 8 | 133,498 |
Yes | output | 1 | 66,749 | 8 | 133,499 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] rep... | instruction | 0 | 66,750 | 8 | 133,500 |
Yes | output | 1 | 66,750 | 8 | 133,501 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] rep... | instruction | 0 | 66,751 | 8 | 133,502 |
No | output | 1 | 66,751 | 8 | 133,503 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] rep... | instruction | 0 | 66,752 | 8 | 133,504 |
No | output | 1 | 66,752 | 8 | 133,505 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] rep... | instruction | 0 | 66,753 | 8 | 133,506 |
No | output | 1 | 66,753 | 8 | 133,507 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
Summer is coming! It's time for Iahub and Iahubina to work out, as they both want to look hot at the beach. The gym where they go is a matrix a with n lines and m columns. Let number a[i][j] rep... | instruction | 0 | 66,754 | 8 | 133,508 |
No | output | 1 | 66,754 | 8 | 133,509 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It's now 260 AD. Shapur, being extremely smart, became the King of Persia. He is now called Shapur, His majesty King of kings of Iran and Aniran.
Recently the Romans declared war on Persia. The... | instruction | 0 | 66,840 | 8 | 133,680 |
Yes | output | 1 | 66,840 | 8 | 133,681 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It's now 260 AD. Shapur, being extremely smart, became the King of Persia. He is now called Shapur, His majesty King of kings of Iran and Aniran.
Recently the Romans declared war on Persia. The... | instruction | 0 | 66,841 | 8 | 133,682 |
Yes | output | 1 | 66,841 | 8 | 133,683 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It's now 260 AD. Shapur, being extremely smart, became the King of Persia. He is now called Shapur, His majesty King of kings of Iran and Aniran.
Recently the Romans declared war on Persia. The... | instruction | 0 | 66,842 | 8 | 133,684 |
Yes | output | 1 | 66,842 | 8 | 133,685 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It's now 260 AD. Shapur, being extremely smart, became the King of Persia. He is now called Shapur, His majesty King of kings of Iran and Aniran.
Recently the Romans declared war on Persia. The... | instruction | 0 | 66,843 | 8 | 133,686 |
Yes | output | 1 | 66,843 | 8 | 133,687 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It's now 260 AD. Shapur, being extremely smart, became the King of Persia. He is now called Shapur, His majesty King of kings of Iran and Aniran.
Recently the Romans declared war on Persia. The... | instruction | 0 | 66,844 | 8 | 133,688 |
No | output | 1 | 66,844 | 8 | 133,689 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It's now 260 AD. Shapur, being extremely smart, became the King of Persia. He is now called Shapur, His majesty King of kings of Iran and Aniran.
Recently the Romans declared war on Persia. The... | instruction | 0 | 66,845 | 8 | 133,690 |
No | output | 1 | 66,845 | 8 | 133,691 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It's now 260 AD. Shapur, being extremely smart, became the King of Persia. He is now called Shapur, His majesty King of kings of Iran and Aniran.
Recently the Romans declared war on Persia. The... | instruction | 0 | 66,846 | 8 | 133,692 |
No | output | 1 | 66,846 | 8 | 133,693 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
It's now 260 AD. Shapur, being extremely smart, became the King of Persia. He is now called Shapur, His majesty King of kings of Iran and Aniran.
Recently the Romans declared war on Persia. The... | instruction | 0 | 66,847 | 8 | 133,694 |
No | output | 1 | 66,847 | 8 | 133,695 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In a strategic computer game "Settlers II" one has to build defense structures to expand and protect the territory. Let's take one of these buildings. At the moment the defense structure accommodates exactly n soldiers. Within this task we c... | instruction | 0 | 66,848 | 8 | 133,696 |
Tags: implementation
Correct Solution:
```
n,k=map(int,input().split())
a=[0]*(k+1)
for x in list(map(int,input().split())):
a[x]+=1
ans=0
while True:
z=0
for i in range(k-1,0,-1):
if a[i]==0:
z+=1
continue
else:
a[i+1]+=1
a[i]-=1
if z==k-1... | output | 1 | 66,848 | 8 | 133,697 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In a strategic computer game "Settlers II" one has to build defense structures to expand and protect the territory. Let's take one of these buildings. At the moment the defense structure accommodates exactly n soldiers. Within this task we c... | instruction | 0 | 66,849 | 8 | 133,698 |
Tags: implementation
Correct Solution:
```
n,k = map(int,input().split())
l = list(map(int,input().split()))
count = 0
while l!=[k]*n:
c = -1
for i in range(n):
# print(l)
if l[i]!=c and l[i]<k:
c = l[i]
l[i]+=1
l.sort()
count+=1
print(count)
``` | output | 1 | 66,849 | 8 | 133,699 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In a strategic computer game "Settlers II" one has to build defense structures to expand and protect the territory. Let's take one of these buildings. At the moment the defense structure accommodates exactly n soldiers. Within this task we c... | instruction | 0 | 66,851 | 8 | 133,702 |
Tags: implementation
Correct Solution:
```
n,k=map(int,input().split())
arr=list(map(int,input().split()))
ans=0
while(True):
flag=0
for j in range(0,n-1):
if(arr[j]!=arr[j+1] and arr[j]<k):
arr[j]+=1
flag=1
if(arr[n-1]<k):
flag=1
arr[n-1]+=1
if(flag==0):
break
ans+=1
print(ans)
``` | output | 1 | 66,851 | 8 | 133,703 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In a strategic computer game "Settlers II" one has to build defense structures to expand and protect the territory. Let's take one of these buildings. At the moment the defense structure accommodates exactly n soldiers. Within this task we c... | instruction | 0 | 66,852 | 8 | 133,704 |
Tags: implementation
Correct Solution:
```
n,k=[int(i) for i in input().split()]
a=list(map(int,input().split()))[:n]
bh=0
while a.count(k)!=len(a):
for i in set(a):
if i!=k:
x=a.index(i)
a[x]=a[x]+1
bh=bh+1
print(bh)
``` | output | 1 | 66,852 | 8 | 133,705 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In a strategic computer game "Settlers II" one has to build defense structures to expand and protect the territory. Let's take one of these buildings. At the moment the defense structure accommodates exactly n soldiers. Within this task we c... | instruction | 0 | 66,853 | 8 | 133,706 |
Tags: implementation
Correct Solution:
```
from collections import defaultdict as df
n,k=list(map(int,input().split()))
a=list(map(int,input().rstrip().split()))
ans=0
maxi=a.count(k)
while(a.count(k)!=n):
d=df(list)
for i in range(n):
if a[i]!=k:
d[a[i]].append(i)
for i in d:
a[... | output | 1 | 66,853 | 8 | 133,707 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In a strategic computer game "Settlers II" one has to build defense structures to expand and protect the territory. Let's take one of these buildings. At the moment the defense structure accommodates exactly n soldiers. Within this task we c... | instruction | 0 | 66,854 | 8 | 133,708 |
Tags: implementation
Correct Solution:
```
import sys
import math
n, k = [int(x) for x in (sys.stdin.readline()).split()]
ai = [int(x) for x in (sys.stdin.readline()).split()]
z = n
res = 0
while(z > 0):
i = 0
f = False
while(i < z):
if(ai[i] == k):
z -= 1
break
els... | output | 1 | 66,854 | 8 | 133,709 |
Provide tags and a correct Python 3 solution for this coding contest problem.
In a strategic computer game "Settlers II" one has to build defense structures to expand and protect the territory. Let's take one of these buildings. At the moment the defense structure accommodates exactly n soldiers. Within this task we c... | instruction | 0 | 66,855 | 8 | 133,710 |
Tags: implementation
Correct Solution:
```
def solve(n, k, soldiers):
l = [0] * 101
for s in soldiers:
l[s] += 1
blocking = 0
result = 0
for i in range(k-1, -1, -1):
num_soldier = l[i]
if num_soldier == 0:
blocking = max(0, blocking - 1)
else:
... | output | 1 | 66,855 | 8 | 133,711 |
Provide a correct Python 3 solution for this coding contest problem.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another room j~ (i \neq j).
Initially, there was one person in ... | instruction | 0 | 67,005 | 8 | 134,010 |
"Correct Solution:
```
M=10**9+7
n,k=map(int,input().split())
l=[1]
f=1
for i in range(n):
f=f*(i+1)%M
l+=[f]
a=0
for i in range(min(n,k+1)):
c=l[n]*l[n-1]%M
p=l[i]**2*l[n-i]*l[n-i-1]%M
a+=c*pow(p,M-2,M)
print(a%M)
``` | output | 1 | 67,005 | 8 | 134,011 |
Provide a correct Python 3 solution for this coding contest problem.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another room j~ (i \neq j).
Initially, there was one person in ... | instruction | 0 | 67,006 | 8 | 134,012 |
"Correct Solution:
```
n, k = map(int, input().split())
def cmb(n, r, mod):
if (r < 0 or r > n):
return 0
r = min(r, n-r)
return g1[n] * g2[r] * g2[n-r] % mod
mod = 10**9+7 # ๅบๅใฎๅถ้
N = 2*10**5+1
g1 = [1, 1] # ๅ
ใใผใใซ
g2 = [1, 1] # ้ๅ
ใใผใใซ
inverse = [0, 1] # ้ๅ
ใใผใใซ่จ็ฎ็จใใผใใซ
for i in range(2, N + ... | output | 1 | 67,006 | 8 | 134,013 |
Provide a correct Python 3 solution for this coding contest problem.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another room j~ (i \neq j).
Initially, there was one person in ... | instruction | 0 | 67,007 | 8 | 134,014 |
"Correct Solution:
```
def comb(n, r):
if r<0 or r>n:
return 0
r=min(r, n-r)
return g1[n]*g2[r]*g2[n-r]%MOD
MOD=10**9+7
MAXN=400000+10
g1=[1, 1]
g2=[1, 1]
inverse=[0, 1]
for i in range(2, MAXN+1):
g1.append((g1[-1]*i)%MOD)
inverse.append(-inverse[MOD%i]*(MOD//i)%MOD)
g2.append((g2[-1]*... | output | 1 | 67,007 | 8 | 134,015 |
Provide a correct Python 3 solution for this coding contest problem.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another room j~ (i \neq j).
Initially, there was one person in ... | instruction | 0 | 67,008 | 8 | 134,016 |
"Correct Solution:
```
def main():
n, kk = map(int, input().split())
mod = 10**9+7
fact = [1, 1]
for i in range(2, 2*10**5+1):
fact.append(fact[-1]*i % mod)
def nCr(n, r, mod=10**9+7):
return pow(fact[n-r]*fact[r] % mod, mod-2, mod)*fact[n] % mod
ans = [1]
for k in range(... | output | 1 | 67,008 | 8 | 134,017 |
Provide a correct Python 3 solution for this coding contest problem.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another room j~ (i \neq j).
Initially, there was one person in ... | instruction | 0 | 67,009 | 8 | 134,018 |
"Correct Solution:
```
n,k = map(int,input().split())
MOD = 10**9+7
FAC = [1]
INV = [1]
for i in range(1,2*n+1):
FAC.append((FAC[i-1]*i) % MOD)
INV.append(pow(FAC[-1],MOD-2,MOD))
def nCr(n,r):
return FAC[n]*INV[n-r]*INV[r]
ans = 0
for i in range(min(n-1,k)+1):
ans += nCr(n,i)*nCr(n-1,n-i-1)
ans %= MOD
prin... | output | 1 | 67,009 | 8 | 134,019 |
Provide a correct Python 3 solution for this coding contest problem.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another room j~ (i \neq j).
Initially, there was one person in ... | instruction | 0 | 67,010 | 8 | 134,020 |
"Correct Solution:
```
MOD = 10**9 + 7
fac = [1 for k in range(200010)]
inv = [1 for k in range(200010)]
finv = [1 for k in range(200010)]
for k in range(2,200010):
fac[k] = (fac[k-1]*k)%MOD
inv[k] = (MOD - inv[MOD%k] * (MOD // k))%MOD
finv[k] = (finv[k - 1] * inv[k]) % MOD;
def nCr(n,r):
return (fac[n... | output | 1 | 67,010 | 8 | 134,021 |
Provide a correct Python 3 solution for this coding contest problem.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another room j~ (i \neq j).
Initially, there was one person in ... | instruction | 0 | 67,011 | 8 | 134,022 |
"Correct Solution:
```
n, k = map(int, input().split())
mod = 10**9+7
fact = [0] * (n+1)
inv = [0] * (n+1)
fact[0], fact[1] = 1, 1
inv[0], inv[1] = 1, 1
for i in range(2,n+1):
fact[i] = (fact[i-1] * i) % mod
for i in range(2,n+1):
inv[i] = (inv[i-1] * pow(i, mod-2, mod)) % mod
if k >= n:
k = n-1
def C(a,b):
ou... | output | 1 | 67,011 | 8 | 134,023 |
Provide a correct Python 3 solution for this coding contest problem.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another room j~ (i \neq j).
Initially, there was one person in ... | instruction | 0 | 67,012 | 8 | 134,024 |
"Correct Solution:
```
N,K = map(int, input().split())
def cmb(n, r, mod):
if ( r<0 or r>n ):
return 0
r = min(r, n-r)
return g1[n] * g2[r] * g2[n-r] % mod
mod = 10**9+7 #ๅบๅใฎๅถ้
g1 = [1, 1] # ๅ
ใใผใใซ
g2 = [1, 1] #้ๅ
ใใผใใซ
inverse = [0, 1] #้ๅ
ใใผใใซ่จ็ฎ็จใใผใใซ
for i in range( 2, 2*N + 1 ):
g1.append( ( g... | output | 1 | 67,012 | 8 | 134,025 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another ... | instruction | 0 | 67,013 | 8 | 134,026 |
Yes | output | 1 | 67,013 | 8 | 134,027 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another ... | instruction | 0 | 67,014 | 8 | 134,028 |
Yes | output | 1 | 67,014 | 8 | 134,029 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another ... | instruction | 0 | 67,015 | 8 | 134,030 |
Yes | output | 1 | 67,015 | 8 | 134,031 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another ... | instruction | 0 | 67,016 | 8 | 134,032 |
Yes | output | 1 | 67,016 | 8 | 134,033 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another ... | instruction | 0 | 67,017 | 8 | 134,034 |
No | output | 1 | 67,017 | 8 | 134,035 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
There is a building with n rooms, numbered 1 to n.
We can move from any room to any other room in the building.
Let us call the following event a move: a person in some room i goes to another ... | instruction | 0 | 67,018 | 8 | 134,036 |
No | output | 1 | 67,018 | 8 | 134,037 |
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