Cod sursa(job #2308061)

Utilizator _Victor_Victor Ciobanu _Victor_ Data 26 decembrie 2018 12:12:12
Problema 1-sir Scor 80
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.44 kb
#include <bits/stdc++.h>
#define MOD 194767
using namespace std;

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

ifstream fin("1-sir.in");
ofstream fout("1-sir.out");

int main(){
	fin>>n>>s;
	memset(DP,0,sizeof DP);
	DP[1][0]=1;
	int smax=n*(n+1)/2;
	for(int i=2;i<=n;i++){
		for(int j=0;j<=smax;j++){
			DP[i%2][j]=(DP[(i+1)%2][abs(j-(i-1))]+DP[(i+1)%2][j+i-1])%MOD;
		}
		memset(DP[(i+1)%2],0,sizeof DP[(i+1)%2]);
	}
	fout<<DP[n%2][s];
	return 0;
}