Cod sursa(job #2102941)

Utilizator andreiutu111Noroc Andrei Mihail andreiutu111 Data 9 ianuarie 2018 17:24:35
Problema 1-sir Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.43 kb
#include<bits/stdc++.h>
using namespace std;
ifstream f("1-sir.in");
ofstream g("1-sir.out");
int N,S,dp[256][32651];
int main()
{
    f>>N>>S;
    const int val=N*(N-1)/2;
    if(S<-val || S>val){
        g<<0;
        return 0;
    }
    dp[1][0]=1;
    for(int i=2;i<=N;++i)
        for(int j=1;j<=i*(i-1)/2;++j)
            dp[i][j]=(dp[i-1][j+(i-1)]+dp[i-1][abs(j-(i-1))])%194767;
    g<<dp[N][abs(S)];
    return 0;
}