题解 | while
while
https://www.nowcoder.com/practice/173564fc07c146a88c408c92f4182c65
#include <bits/stdc++.h>
using namespace std;
int main(){
int cnt = 0;
string a = "while";
string s;
cin >> s;
for(int i = 0; i < 5; i ++){
if(s[i] != a[i]) cnt ++;
}
cout << cnt;
return 0;
}
