Zoo corectat

#include <fstream>

using namespace std;

int n,m, A[105][105];
long long Q[105][105];

long long query (int i1, int j1, int i2, int j2)
{
    return Q[i2][j2] - Q[i1-1][j2] - Q[i2][j1-1] + Q[i1-1][j1-1];
}

void createMatrix()
{
    for(int i = 1 ; i <= n ; i ++)
        for(int j = 1 ; j <= m ; j ++)
            Q[i][j] = Q[i-1][j] + Q[i][j-1] - Q[i-1][j-1] + A[i][j];
}


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

    fin>>n>>m;
    for (int i=1; i<=n; i++)
        for (int j=1; j<=m; j++)
            fin>>A[i][j];

    createMatrix();

    int Q;
    fin>>Q;

    for (int i=1; i<=Q; i++)
    {
        int i1, i2, j1, j2;
        fin>>i1>>j1>>i2>>j2;
        fout<<query(i1,j1,i2,j2)<<endl;
    }

}