求助70分，7,9,10没过

wangbinyuan @ 2023-03-26 10:56:33

#include<iostream>
#include<math.h>
using namespace std;
int main()
{
    long long num, flag = 0;
    cin >> num;

    if(num == 0)
    {
        cout << num;
        return 0;
    }

    if(num < 0)
    {
        flag = 1;
        num = abs(num);
        cout << "-";
    }
    while(num > 0)
    {
        if(num % 10 != 0)
        {
            cout << num % 10;
        }
        num /= 10;
    }
    return 0;
}

by fwtv_24 @ 2023-03-26 11:31:11

while部分可以改一下

while(num!=0)
    {
        ans=ans*10+num%10;
        num/=10

     } 
cout<<ans;

by wangbinyuan @ 2023-03-26 13:47:12

谢谢

by xawuyulun @ 2023-04-02 15:21:27

#include<iostream>
using namespace std;
int main(){
    int n,f=0;  //f 反转数 
    cin>>n;
    while(n!=0){
        f=f*10+n%10; 
        n=n/10;    
    }
    cout<<f;
    return 0;
}

by a1915825705 @ 2023-05-25 12:00:02

@xawuyulun 简单易懂 tql