Cod sursa(job #2108763)

Utilizator smashsmash everything smash Data 18 ianuarie 2018 19:48:14
Problema Diamant Scor 70
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.99 kb
#include <fstream>

using namespace std;
ifstream cin ("diamant.in");
ofstream cout ("diamant.out");
int best[100010],cop[101001];
long long n,m,x;
#define best (best+50001)
#define cop (cop+50001)
void read ()
{
    cin>>n>>m>>x;
}
void up_date (int val)
{
    for(int i=50000-val;i>=-50000;i--)
        if(best[i]!=0) cop[i+val]=(cop[i+val]+best[i])%10000;
}
void up_date_d (int val)
{
    for(int i=-50000+val;i<=50000;i++)
        if(best[i]!=0) cop[i+val]=(cop[i+val]+best[i])%10000;
}
void solve ()
{ int val;
    for(int i=1;i<=n;i++)
    for(int j=1;j<=m;j++)
    {
        val=i*j;
        up_date(val);
        up_date_d(val*-1);
        for(int i=-50000;i<=50000;i++) best[i]=(best[i]+cop[i])%10000,cop[i]=0;
        best[val]=(best[val]+1)%10000;
        best[-val]=(best[-val]+1)%10000;
    }
    cout<<best[x];
}
int main()
{
    read();
    if(x>50000 || x<-50000) {cout<<0; return 0;}
    solve();
    cin.close();
    cout.close();
    return 0;
}