Rest in peace - 21-1!

The grandest stage of all, Wrestlemania XXX recently happened. And with it, happened one of the biggest heartbreaks for the WWE fans around the world. The Undertaker's undefeated streak was finally over.

Now as an Undertaker fan, you're disappointed, disheartened, and shattered to pieces. And Little Jhool doesn't want to upset you in any way possible. (After all you are his only friend, true friend!) Little Jhool knows that you're still sensitive to the loss, so he decides to help you out.

Every time you come across a number, Little Jhool carefully manipulates it. He doesn't want you to face numbers that have "21" as a part of them. Or, in the worst case possible, are divisible by 21.

If you end up facing such a number you feel sad... and no one wants that - because you start chanting "The streak is broken!" , if the number doesn't make you feel sad, you say, "The streak lives still in our heart!"

Help Little Jhool so that he can help you!

Example:

Input:  n = 120
Output: The streak lives still in our heart!

Approach

C++

#include <bits/stdc++.h>
using namespace std;

void restInPeace(int n)
{
    if (n % 21 == 0)
        cout << "The streak is broken!\n";
    else
    {
        string s = to_string(n);
        int i = 0;
        int flag = 0;
        while (i < (int)s.size() - 1)
        {
            if (s[i] == '2' && s[i + 1] == '1')
            {
                flag = 1;
                break;
            }
            i++;
        }
        if (flag)
            cout << "The streak is broken!\n";
        else
            cout << "The streak lives still in our heart!\n";
    }
}
int main()
{

    int n = 120;

    restInPeace(n);

    return 0;
}