Submission #952703

#	Time	Username	Problem	Language	Result	Execution time	Memory
952703		wood	Asceticism (JOI18_asceticism)	C++17	4 / 100	0 ms	460 KiB

asceticism

#include <bits/stdc++.h>  
using namespace std;
 
typedef long long ll;
typedef pair<int,int> p32;
typedef pair<ll,ll> p64;
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define fast_cin() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define MOD %1000000007

int main()
{
    fast_cin();
    #ifndef ONLINE_JUDGE
        #ifdef _WIN32
            freopen("input.in", "r", stdin);
            freopen("input.out", "w", stdout);
        #endif
    #endif
    int n,k;
    cin>>n>>k;
    int dp[n][n];
    memset(dp[0],0,sizeof dp[0]);
    dp[0][0] = 1;
    for (size_t i = 1; i < n; i++)
    {
        for (size_t j = 0; j < n; j++)
        {
            if(j==0)
               dp[i][j]=1;
            else dp[i][j]=((j+1)* dp[i-1][j])MOD+((i-j+1)*dp[i-1][j-1])MOD; 
        }
        
    }
    cout<<dp[n-1][k-1];
    return 0;
}

Compilation message (stderr)

asceticism.cpp: In function 'int main()':
asceticism.cpp:28:26: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   28 |     for (size_t i = 1; i < n; i++)
      |                        ~~^~~
asceticism.cpp:30:30: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |         for (size_t j = 0; j < n; j++)
      |                            ~~^~~

• Subtask 1: 4 / 4
• Subtask 2: 0 / 20
• Subtask 3: 0 / 25
• Subtask 4: 0 / 51