Cod sursa(job #1910361)

Utilizator ionanghelinaIonut Anghelina ionanghelina Data 7 martie 2017 16:35:07
Problema 1-sir Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.59 kb
#include<bits/stdc++.h>
#define mod 194767
#define maxN 260
using namespace std;
int n,s,dp[2][35005],t;
int main()
{
    freopen("1-sir.in","r",stdin);
    freopen("1-sir.out","w",stdout);
    scanf("%d%d",&n,&s);
    if(s<0) s=-s;
    dp[0][0]=1;
    for(int i=2;i<=n;i++)
    {
        t=i*(i-1)/2;
        for(int j=0;j<=t;j++)
        {
            dp[1][j]=dp[0][j+(i-1)]+dp[0][max(j-(i-1),-j+(i-1))];
        }
        for(int j=0;j<=t;j++)
        {
            dp[0][j]=dp[1][j]%mod;
            dp[1][j]=0;
        }
    }
    printf("%d\n",dp[0][s]);
    return 0;
}