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Cod sursa(job #8726)
#include <stdio.h>
#define NMAX 257
#define SMAX (64*257+1)
#define MIN(x,y) ((x)<(y)?(x):(y))
#define MOD 194767
int n, S;
int a[SMAX][NMAX];
int main()
{
int i, j, s;
freopen("1-sir.in", "r", stdin);
freopen("1-sir.out", "w", stdout);
scanf("%d%d", &n, &S);
if(S < 0)
S = -S;
if((n/2)%2 != S%2) {
printf("0\n");
return 0;
}
S = ((n*(n-1))/2 - S) / 2;
if(S <= 0) {
printf("%d\n", S < 0 ? 0 : 1);
return 0;
}
n--;
for(i = 1; i <= MIN(S, n); i++)
a[i][i] = 1;
for(i = 1; i <= S; i++)
for(j = MIN(i-1, n); j > 0; j--)
{
a[i][j] = a[i][j+1];
s = i - j; // restul sumei
a[i][j] = (a[i][j] + a[s][j+1]) % MOD;
// for(k = j+1; k <= n && k <= s; k++) // urmatorul termen
// a[i][j] = (a[i][j] + a[s][k]) % MOD;
}
s = a[S][1];
// for(i = 0; i <= MIN(n, S); i++)
// s = (s + a[S][i]) % MOD;
printf("%d\n", s);
return 0;
}