我测试的没毛病呀，，为啥就给我70？求大佬看一下

P1307 [NOIP2011 普及组] 数字反转

QLUzongyuxing @ 2022-01-13 21:04:32

include<iostream>

using namespace std;

int main()

{

string s;
cin>>s;
if(s[0]=='-'){
    cout<<s[0];
    }
for(int i=s.size() -1;i>=0;i--){
    if(s[i]!='0'&&s[i]!='-'){
        cout<<s[i];
    }
}

}

by Jr_Zlw @ 2022-01-13 21:12:02

hack: -3080

by 3a51_ @ 2022-01-13 21:33:43

@QLUzongyuxing 建议拆开每一位。

#include<iostream>
using namespace std;

int main()
{
    int n,ans=0;
    cin>>n;
    while(n!=0)
    {
        ans=ans*10+n%10;
        n/=10;
    }
    cout<<ans;
    return 0;
}

by 3a51_ @ 2022-01-13 21:34:13

如果0在中间就会处理错。

by QLUzongyuxing @ 2022-01-14 09:51:37

@Tothetime_tolife 欧克了，谢谢

|