50分蒟蒻求助

chenxi797 @ 2023-09-12 20:41:58

#include <bits/stdc++.h>
using namespace std;
int main()
{
    long long n;
    char a,b;
    cin >> n >> a >> b;
    if (a != 'B' && a != 'C' && b != 'B' && b != 'C')
        cout << n;
    else if ((a == 'B' && b != 'C') || (b == 'B' && a != 'C'))
        cout << n * 0.8;
    else if ((a == 'C' && b != 'B') || (b == 'C' && a != 'B'))
        cout << n * 0.7;
    else if ((a == 'B' && b == 'C') || (a == 'C' && b == 'B'))
        cout << n * 0.6;
}

by AbCdikun @ 2023-09-12 20:47:46

你换种思路，不用这么麻烦，

by chenxi797 @ 2023-09-12 20:52:38

@AbCdikun 主要这种简单

by chenxi797 @ 2023-09-12 20:52:57

标题打错了，是20分

by xuchuhan @ 2023-09-12 20:58:30

@chenxi797 n*0.8 换为 n/10*8，n*0.7 换为 n/10*7，n*0.6 换为 n/10*6，会出现精度问题。

by chenxi797 @ 2023-09-12 20:59:03

@xuchuhan 稍等，我看看

by chenxi797 @ 2023-09-12 21:00:32

为啥这么卡啊

by chenxi797 @ 2023-09-12 21:01:14

@xuchuhan AC了，thx

by XiaochenPRC @ 2023-09-14 23:10:08

@xuchuhan 帅飞了 在这里找到了正确答案 困惑了很久