popravni-sept-2014-zad3-GornjaTrougaona

#include <iostream>
#include <stdexcept>
#include <vector>



using namespace std;

bool GornjaTrougaona (vector<vector<double>> mat)
{
    for (int i=0; i<mat.size(); i++) {
        if (mat[i].size()!=mat[0].size())
            throw domain_error ("Parametar nema formu matrice.");
    }
    for (int i=0; i<mat.size(); i++) {
 for (int j=0; j<mat[i].size(); j++)
{
    if (i>j && mat[i][j]==0) return true;
}}
return false;
}

int main () {
    cout<<"Unesite dimenzije matrice :";
    int br_red, br_kol;
    cin>>br_red>>br_kol;
    try {
        vector<vector<double>> mat(br_red,vector<double>(br_kol));
    cout<<"Unesite elemente matrice: "<<endl;
    for (int i=0; i<br_red; i++)
        for (int j=0; j<br_kol; j++)
        cin>>mat[i][j];

    if (GornjaTrougaona(mat)) cout<<"Matrica je gornja trougaona.";
    else cout<<"Matrica nije gornja trougaona.";
     }
    catch(const char poruka[]) {
    cout<<poruka;
    }
    return 0;
}