bugs.cpp

#include <iostream>
#include <string>
 
using namespace std;
 
int main()
{
    unsigned int t;
    string s1, s2;
 
    while (cin >> t >> s1)
    {
        const unsigned int len = s1.length();
 
        for(int i = 0 ; i < t; i++)
        {
            unsigned int n = 0;
            cin >> s2;
            while(true)
            {
                n = s2.find(s1, n);
                if(n > s2.length())
                    break;
 
                s2 = s2.erase(n,len);
                n = n+1 > len ? n+1 - len : 0;
            }
            cout << s2 << endl;
        }
    }
 
    return 0;
 
}