第二道题看错题了，提交之 才弄明白。。提交一下改过的代码，各位看着有问题不？？

#include<string>

#include<iostream>

using namespace std;

int main(){

string str;

cin >> str;

char c;

cin >> c;

str += c;

string res;

for (int i = 0; i < str.size(); i++){

if (str[i] != c)

res += str[i];

if (str[i] == c )

{

cout << res << endl;

res.clear();

}

}

}