Cod sursa(job #1403993)
Utilizator | Data | 27 martie 2015 18:15:16 | |
---|---|---|---|
Problema | 1-sir | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.4 kb |
#include <fstream>
#define MOD 194676
#define ZERO 16450
using namespace std;
long v[2][32900];
int main()
{
ifstream in("1-sir.in");
ofstream out("1-sir.out");
long n, s, i;
in>>n>>s;
v[1][ZERO]=1;
for(i=2; i<=n; ++i)
for(long j=ZERO-i; j<=ZERO+i; ++j)
v[i%2][j]=(v[(i+1)%2][j-i+1]+v[(i+1)%2][j+i-1])%MOD;
out<<v[(i+1)%2][ZERO+s];
return 0;
}