Pagini recente » Cod sursa (job #2842282) | Cod sursa (job #3128555) | Cod sursa (job #570244) | Cod sursa (job #2429759) | Cod sursa (job #1678409)
#include <fstream>
#include <cstdlib>
#define MOD 194767
using namespace std;
ifstream fin("1-sir.in");
ofstream fout("1-sir.out");
int v[2][32500];
int n, s;
int main()
{
fin >> n >> s;
int vmax = n * (n - 1) / 2;
int vmin = - vmax;
if(s > vmax || s < vmin)
{
fout << 0 << '\n';
return 0;
}
v[1][0] = 1;
for(int i = 2; i <= n; i ++)
{
vmax = i * (i - 1) / 2;
vmin = - vmax;
for(int j = 0; j <= vmax; j ++)
{
v[i % 2][j] = (v[1 - i % 2][abs(j - (i - 1))] + v[1 - i % 2][j + (i - 1)]) % MOD;
}
}
fout << v[n % 2][abs(s)] << '\n';
return 0;
}