34-programare

#include<iostream>
#include<fstream>


using namespace std;


int main(){
    ifstream f1("atestat.in");
    ofstream f2("atestat.out");
    int m[50][50],i,j,test=0,maxim,n,aux;
    f1>>n;
    for(i=1;i<=n;i++)
        for(j=1;j<=n;j++){
            f1>>m[i][j];
            if(j == (n-i+1)){
                if(test == 0){
                    maxim=m[i][j];
                    test=1;
                }
                else
                    if(maxim < m[i][j])
                        maxim=m[i][j];
            }
        }
    for(i=1;i<=n-1;i++)
        for(j=i+1;j<=n;j++)
            if( m[i][i] > m[j][j]){
                aux=m[i][i];
                m[i][i]=m[j][j];
                m[j][j]=aux;
            }
    f2<<maxim<<endl;
    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++)
            f2<<m[i][j]<<" ";
        f2<<endl;
        }
    }