2.

#include <iostream>
using namespace std;
int main() {
    int N;
    do {
        cout << "N: ";
        cin >> N;
    }while(N <= 0);
    float * polje = new float[N];
    for(int i = 0; i < N; i++) {
        cout << "Broj: ";
        cin >> polje[i];
    }
    bool found = true;
    while(found) {
        found = false;
        for(int i = 0; i < N-1; i++) {
            if(polje[i] > polje[i+1]) {
                swap(polje[i], polje[i+1]);
                found = true;
            }
        }

    }

    for(int i = 0; i < N; i++)
        cout << polje[i] << endl;
    return 0;
}