CPP

c++ find index of all occurrences in string

// C++ program to find indices of all
// occurrences of one string in other.
#include <iostream>
using namespace std;
void printIndex(string str, string s)
{
 
    bool flag = false;
    for (int i = 0; i < str.length(); i++) {
        if (str.substr(i, s.length()) == s) {
            cout << i << " ";
            flag = true;
        }
    }
 
    if (flag == false)
        cout << "NONE";
}
int main()
{
    string str1 = "GeeksforGeeks";
    string str2 = "Geeks";
    printIndex(str1, str2);
    return 0;
}