Cod sursa(job #1997104)
| Utilizator | Data | 3 iulie 2017 13:13:37 | |
|---|---|---|---|
| Problema | 1-sir | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.64 kb |
#include <iostream>
#include <fstream>
#include <cmath>
#define MOD 194767
using namespace std;
ifstream si("1-sir.in");
ofstream so("1-sir.out");
int din[2][33800];
int main()
{
int n,s;
si>>n>>s;
s=abs(s);
if(s>n*(n-1)/2)
{
cout<<0;
return 0;
}
din[0][0]=1;
int lim;
for(int i=2;i<=n;++i)
{
lim=i*(i-1)/2;
for(int j=0;j<=lim;++j)
{
din[1][j]=(din[0][(int)abs(j-(i-1))]+din[0][j+i-1])%MOD;
}
for(int j=0;j<=lim;++j)
{
din[0][j]=din[1][j];
}
}
so<<din[0][s];
return 0;
}
