Cod sursa(job #2587735)

Utilizator malakayMarius Andronie malakay Data 23 martie 2020 14:59:08
Problema Diamant Scor 90
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.93 kb
#pragma GCC optimize ("-O2")
#include <fstream>
#include <vector>
#define mod 10000
#define M 48000
using namespace std;

int n,m,x,mx;

int main()
{
    ios::sync_with_stdio(0);
    ifstream f("diamant.in");f.tie(0);
    ofstream g("diamant.out");g.tie(0);
    f>>n>>m>>x;
    f.close();

    mx=(n*(1+n)/2)*(m*(1+m)/2);
    vector<int>curr[2];
    int a=0;
    int b=1;
    curr[0].resize(2*M+69);
    curr[1].resize(2*M+69);

    curr[a][M+0]=1;


    if(abs(x)>mx)
    {
        g<<0;
        g.close();
        return 0;
    }

    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
    {
        int it=i*j;
        swap(a,b);
        for(int ac=M-mx;ac<=M+mx;ac++)
        {
            curr[a][ac]=curr[b][ac];
            curr[a][ac]+=curr[b][ac-it];
            curr[a][ac]+=curr[b][ac+it];
            curr[a][ac]%=mod;
        }

    }

    g<<curr[a][x+M];

    g.close();
    return 0;
}