题解 | 游游的数字圈

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

int main(){
    string str;
    cin>>str;
    int ans = 0;
    for(auto x : str){
        if(x=='0'||x=='6'||x=='9')ans++;
        else if(x=='8') ans += 2;
    }
    cout<<ans;

    return 0;
}

for循环判断，如果当前的字符为'0'or'6'or'9',ans += 1,如果当前字符为'8',ans+=2

#牛客春招刷题训练营#https://www.nowcoder.com/discuss/727521113110073344