Cod sursa(job #1280359)

Utilizator marcelPFake name marcelP Data 1 decembrie 2014 20:58:58
Problema Diamant Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.41 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("diamant.in");
ofstream fout("diamant.out");
#define MAX 44110
#define MOD 10000

int rez[MAX*2][2];
int n, m, x, i, j, k;
int minim, maxim;
int main()
{
    fin >> n >> m >> x;
    rez[44100][1] = 1;
    int dr = 0;
    for(i = 1 ; i <= n ; i++)
    {
        for(j = 1 ; j <=m ; j++)
        {
            int v = (dr++) & 1;
            int r = i * j;
            for(k = minim ; k <= maxim ; k++)
            {
                rez[k + 44100][v] = 0;
            }

            for(k = minim ; k <= maxim ; k++)
            {

                k += 44100;
                if(rez[k][v ^ 1])
                {

                    rez[k][v] += rez[k][v ^ 1];
                    if(rez[k][v] >= MOD)
                        rez[k][v] -= MOD;
                    rez[k + r][v] += rez[k][v ^ 1];
                    if(rez[k + r][v] >= MOD)
                        rez[k + r][v] -= MOD;
                    rez[k - r][v] += rez[k][v ^ 1];
                    if(rez[k - r][v] >= MOD)
                        rez[k - r][v] -= MOD;
                }

                k -= 44100;
            }
            minim = minim - i * j;
            maxim = maxim + i * j;
        }
    }
    int v = (dr-1) & 1;
    if(x >= -44100 && x <= 44100)
        fout << rez[x + 44100][v] << "\n";
    else
        fout << 0 << "\n";
}