测试结果对，但只有20分！求助！！

11451410086_lrr @ 2024-01-22 14:09:49

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,ge,shi,bai,shu;
    cin>>n;
    ge=n%10;
    shi=n/10%10;
    bai=n/100%10;
    if(n<0&&ge!=0)
    shu=-(100*(ge-2*ge)+10*(shi-2*shi)+(bai-2*bai));
    else if(n<0&&ge==0)
    shu=-(10*(shi-2*shi)+(bai-2*bai));
    else
    shu=100*ge+10*shi+bai;
    cout<<shu;
    return 0;
}

by SugarKite @ 2024-01-22 14:21:07

题干中并没有说是3位数

by SugarKite @ 2024-01-22 14:22:44

@20110313lrr

by yanghanhang @ 2024-01-22 16:56:01

还要包括负数和0

by yanghanhang @ 2024-01-22 16:58:30

@20110313lrr 如果是230，反过来还要去0，变成32，小数末尾要省略

by 11451410086_lrr @ 2024-01-22 17:16:16

@yanghanhang

if(n<0&&ge!=0)
    shu=-(100*(ge-2*ge)+10*(shi-2*shi)+(bai-2*bai));
    else if(n<0&&ge==0)
    shu=-(10*(shi-2*shi)+(bai-2*bai));

这是考虑的0

by 11451410086_lrr @ 2024-01-22 17:16:55

@Tzy090420 谢了