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Cod sursa(job #871661)
#include <iostream>
#include <fstream>
#include <cmath>
#include <algorithm>
#define mij 50000
#define mod 10000
using namespace std;
int n,m,x,nr;
int a[100000],temp[100000],Min,Max;
int main()
{
int i,j;
fstream f,g;
f.open("diamant.in",ios::in);
g.open("diamant.out",ios::out);
f>>n>>m>>x;
x=abs(x+0.0);
nr=(n+1)*n*(m+1)*m/4;
if (x>nr)
{
g<<0;
return 0;
}
temp[0+mij]=a[mij+0]=1;
int k,crt;
Min=Max=mij;
for (i=1;i<=n;i++)
for (j=1;j<=m;j++)
{
crt=i*j;
for (k=Min;k<=Max;k++)
{
temp[crt+k]=(a[k]+a[crt+k]+a[k+crt+crt])%mod;
//cout<<crt+k<<endl;
}
Max=Max+crt;
Min=Min-crt;
for (k=Min;k<=Max;k++)
a[mij-(k-mij)]=a[k]=temp[k];
}
g<<a[x+mij]%mod;
}
/*
#include <cstdio>
using namespace std;
#define MAXV 45000
#define MOD 10000
const int Nmax = 1<<17;
const int Vmax = 45000;
const int Mod = 10000;
int N, M, X;
int A[Nmax], B[Nmax], Sum;
#define A (A+MAXV)
#define B (B+MAXV)
#define rest(x,y) ((x)-(x)/(y)*(y))
int Solve()
{
int c = 0;
A[0] = 1;
for (int i=1;i<=N;++i)
for (int j=1;j<=M;++j)
{
if (c % 2 == 0)
for (int val=-Sum;val<=Sum;++val)
{
B[val] = A[val]+A[val-i*j]+A[val+i*j];
B[val] = rest(B[val], MOD);
}
else
for (int val=-Sum;val<=Sum;++val)
{
A[val] = B[val]+B[val-i*j]+B[val+i*j];
A[val] = rest(A[val], MOD);
}
c++;
}
if ( c % 2 == 0 )
return A[X];
else
return B[X];
}
int main(void)
{
freopen("diamant.in", "rt", stdin);
freopen("diamant.out", "wt", stdout);
scanf("%d %d %d\n", &N, &M, &X);
Sum = N*(N+1)*M*(M+1)/4;
if ( ( X > Sum ) || ( -X > Sum ) )
printf("0\n");
else
printf("%d\n", Solve() );
return 0;
}
*/