selection cpp

/*program to perform selection sort on an array*/
#include <iostream>
#include<vector>
#include<sstream>

using namespace std;

// method that sorts the vector using selection sort
vector<int> selectionSort(vector<int> numbers){
    int temp;

    // loop i from 0 to n-1
    // assign minimum element Index as i initially
    for(int i=0; i<numbers.size()-1; i++){
        int minIndex = i;

        // loop j from i+1 to n
        // compare jth element to minIndex element
        for(int j=i+1; j< numbers.size(); j++){

            if(numbers[minIndex] > numbers[j]){
                minIndex = j;
            }
        }

        // swap the smallest element to the minIndex position
        int temp = numbers[minIndex];
        numbers[minIndex] = numbers[i];
        numbers[i] = temp;
    }
    // return sorted vector
    return numbers;
}

int main()
{

    int n;
    string str;
    vector<int> ints;

    cout<<"Enter the array to be sorted : ";
    cin>>str;

    // removing ","  and replacing it with spaces
    // this is to convert string to a vector of integers
    // you can also take input into array using the conventional way
    for (string::iterator it = str.begin(); it != str.end(); ++it) {
        if (*it == ',') {
            *it = ' ';
        }
        else continue;
    }

    // storing the string by extracting integers and puting them into vector
    stringstream ss(str);
    while(ss >> n){
        ints.push_back(n);
    }

    ints = selectionSort(ints);

    cout<<"\nThe Array after sorting is : ";
    for(int i=0; i<ints.size(); i++){
        cout<<ints[i]<<" ";
    }
}