Criptare

#include <bits/stdc++.h>
#define N 1000

using namespace std;

ifstream fin("criptare.in");
ofstream fout("criptare.out");

int a[N+5][N+5], n;
int L[N+5], C[N+5], l, c;

void citire()
{
    int i, j;
    fin >> n;
    for(i=1;i<=n;++i)
        for(j=1;j<=n;++j)
            fin >> a[i][j];
    fin.close();
}

void afisare()
{
    fout << max(l, c);
    fout << "\n";
    int m=min(l,c), i;
    for(i=1;i<=m;++i)
        fout << L[i] << " " << C[i] << "\n";
    for(i=m+1;i<=l;++i)
        fout << L[i] << " 1" << "\n";
    for(i=m+1;i<=c;++i)
        fout << "1 " << C[i] << "\n";
    fout.close();
}

void prelucrare()
{
    int i, j;
    bool este;
    for(i=1;i<=n;++i)
    {
        este=1;
        for(j=1;j<=n;++j)
            if(a[i][j]!=0) este=0;
        if(este) L[++l]=i;
    }
    for(j=1;j<=n;++j)
    {
        este=1;
        for(i=1;i<=n;++i)
            if(a[i][j]!=0) este=0;
        if(este) C[++c]=j;
    }
}

int main()
{
    citire();
    prelucrare();
    afisare();
    return 0;
}