70分，怎么改啊

鲁锦聪 @ 2021-07-23 12:08:47

#include <bits/stdc++.h>
using namespace std;
char a[100];
int main(){
    cin >> a;
    int l = strlen(a);
    if(a[0] == '-')
        cout << "-";
    for(int i = l - 1;i >= 0;i--){
        if(a[i] != '0' && a[i] != '-')
            cout << a[i];
    }
    return 0;
}

by _l_l_l_l_l_ @ 2021-07-23 12:23:58

@鲁锦聪 中间的0不能省略

by 小杨小小杨 @ 2021-07-23 12:34:19

@鲁锦聪 只有末尾的连续的零才可以省略

by 鲁锦聪 @ 2021-07-23 15:33:10

我知道，但改不出来了

by 鲁锦聪 @ 2021-07-23 15:33:18

@WenZKbb

by 鲁锦聪 @ 2021-07-23 15:33:29

@小杨小小杨

by 小杨小小杨 @ 2021-07-23 15:39:24

#include <bits/stdc++.h>
using namespace std;
char a[100];
int main(){
    cin >> a;
    int l = strlen(a)-1;
    if(a[0] == '-')
        cout << "-";
    int h=0;
    if (a[h]=='-') h++;
    while (a[l]=='0') l--;
    for (int i=l;i>=h;i--) printf("%c",a[i]);
    return 0;
}

by 小杨小小杨 @ 2021-07-23 15:39:37

@鲁锦聪

by 鲁锦聪 @ 2021-07-23 15:42:52

@小杨小小杨 懂了，谢谢大佬

by Tattbimh @ 2021-08-10 10:01:05

#include<bits/stdc++.h>
using namespace std;
int n,ans;
int main()
{
    cin>>n;
    while(n)
    {
        ans*=10;
        ans+=n%10;
        n/=10;
    }
    cout<<ans;
    return 0;
}

by Tattbimh @ 2021-08-10 10:01:29

@失去我又如何 不想吗