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Cod sursa(job #773069)
#include<fstream>
#define zero 45000
using namespace std;
int l1[2*zero],l2[2*zero],v[401];
int main(void){
ifstream fin("diamant.in");
ofstream fout("diamant.out");
int i,n,m,j,k,s=0,nr=0;
fin>>n>>m>>k;
for (i=1; i<=n; ++i)
for (j=1; j<=m; ++j){s+=i*j; ++nr; v[nr]=i*j; }
if (k>s) fout<<"0";
else {
for (i=1; i<=nr; ++i)
if (i%2==1) { for (j=zero-s; j<=zero+s; ++j)l2[j]=(l1[j]+l1[j-v[i]]+l1[j+v[i]])%10000;
++l2[v[i]+zero]; ++l2[zero-v[i]];
}
else { for (j=zero-s; j<=zero+s; ++j)l1[j]=(l2[j]+l2[j-v[i]]+l2[j+v[i]])%10000;
++l1[v[i]+zero]; ++l1[zero-v[i]];
}
++l1[zero]; ++l2[zero];
if (nr%2==0) fout<<l1[zero+k]; else fout<<l2[zero+k];
}
return(0);
}