题解 | while
while
https://www.nowcoder.com/practice/173564fc07c146a88c408c92f4182c65
#include<iostream>
using namespace std;
int main(){
string s;
cin >> s;
int times=0;
if(s[0]!='w')times++;
if(s[1]!='h')times++;
if(s[2]!='i')times++;
if(s[3]!='l')times++;
if(s[4]!='e')times++;
cout << times;
return 0;
}
