Cod sursa(job #2553319)

Utilizator Diana_IonitaIonita Diana Diana_Ionita Data 21 februarie 2020 21:05:57
Problema 1-sir Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.56 kb
#include <bits/stdc++.h>

using namespace std;
ifstream fin("1-sir.in");
ofstream fout("1-sir.out");
int n,s,lin,pr,i,j,dp[3][32775];
int main()
{
    fin>>n;
    fin>>s;
    dp[1][0]=1;
    if((n-1)*n/2<abs(s))
    {
        fout<<0<<'\n';
        return 0;
    }
    for(i=2; i<=n; i++)
    {
        lin=i&1;
        pr=1-lin;
        for(j=0; j<=i*(i-1)/2; j++)
        {
            dp[lin][j]=max(dp[pr][abs(j-i+1)],dp[pr][abs(j+i-1)]);
            dp[lin][j]%=194767;
        }
    }
    fout<<dp[n&1][s]%194767<<'\n';
    return 0;
}