Cod sursa(job #973411)
| Utilizator | Data | 14 iulie 2013 14:43:15 | |
|---|---|---|---|
| Problema | 1-sir | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.45 kb |
#include<iostream>
#include<fstream>
using namespace std;
#define NMAX 256
#define SMAX 128*255
#define MOD 194767
int d[SMAX];
int main ()
{
int n,i,j,s;
ifstream f("1-sir.in");
ofstream g("1-sir.out");
f>>n>>s;
f.close();
s=(n-1)*n/2-s;
if(s<0 || s%2==1) {
g<<"0";
g.close();
return 0;
}
s=s/2;
d[0]=1;
for(i=1;i<=n-1;i++)
for(j=s;j>=i;j--)
d[j]=(d[j]+d[j-i])%MOD;
g<<d[s];
g.close();
return 0;
}