Cod sursa(job #2513539)

Utilizator GBearUrsu Ianis-Vlad GBear Data 23 decembrie 2019 12:51:41
Problema Diamant Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.15 kb
#include <bits/stdc++.h>

using namespace std;


int main()
{
    ifstream fin("diamant.in");
    ofstream fout("diamant.out");

    int N, M, X;

    fin >> N >> M >> X;

    if(X > 44100 || X < - 44100)
    {
        fout << 0;
        return 0;
    }

    int max_sum = 0;

    for(int i = 1; i <= N; ++i)
    {
        for(int j = 1; j <= M; ++j)
        {
            max_sum += i*j;
        }
    }

    vector<vector<int>> dp(2, vector<int>(2*max_sum + 7, 0));

    bool current = 0;
    bool previous = 1;

    dp[0][max_sum] = 1;

    for(int i = 1; i <= N; ++i)
    {
        for(int j = 1; j <= M; ++j)
        {
            current = !current;
            previous = !previous;

            for(int s = 0; s <= 2 * max_sum; ++s)
            {
                dp[current][s] = dp[previous][s];

                if(s + i*j <= 2*max_sum)
                    dp[current][s] += dp[previous][s + i*j];

                if(s - i*j >= 0)
                    dp[current][s] += dp[previous][s - i*j];

                dp[current][s] %= 10000;
            }
        }
    }

    fout << dp[current][max_sum + X];
}