Cod sursa(job #2412900)

Utilizator victorv88Veltan Victor victorv88 Data 22 aprilie 2019 17:18:46
Problema 1-sir Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.52 kb
#include <bits/stdc++.h>
#define MOD 194767
using namespace std;

ifstream f("1-sir.in");
ofstream g("1-sir.out");

int n, s, dp[2][33000];

int main()
{
    f >> n >> s;
    if (s>32896 || s<-32896)
    {
        g << 0;
        return 0;
    }
    dp[1][0]=1;
    for (int i=2; i<=n; ++i)
    {
        for (int j=0; j<=i*(i-1)/2; ++j)
        {
            dp[i%2][j]=dp[(i-1)%2][abs(j-(i-1))]+dp[(i-1)%2][j+(i-1)];
            dp[i%2][j]%=MOD;
        }
    }
    g << dp[n%2][s];
    return 0;
}