70

lrqSB @ 2024-11-26 09:41:22

#include<bits/stdc++.h>
using namespace std;
#define int long long 
signed main()
{
    int a,b[15];
    bool c=1;
    cin>>a;if(a<0){
        cout<<"-";
        b[0]=0;
        a=abs(a);
    }
    for(int i=0;i<=9;i++){
        b[i]=a%10;
        a/=10;
    }
    for(int i=0;i<=9;i++){
        if(b[i]==0){
            c=false;
        }if(b[i]!=0){
            c=true;
        }
        if(c!=0){
            cout<<b[i];
        }

    }
}

by xian_zhaoyuzhe @ 2025-01-10 17:57:30

#include <bits/stdc++.h>
using namespace std;
int main()
{
    string s,h,ans;cin>>s;int m=0;
    if(s=="0")
    {
        cout<<0;
        return 0;
    }
    if(s[0]=='-')
    {
        h="-";
        m=1;
    }
    for(int i=s.size()-1;i>=m;i--)
    {
        ans+=s[i];
    }
    cout<<h;
    int f=0;
    for(int i=0;i<ans.size();i++)
    {
        if(ans[i]!='0' || f==1)
        {
            f=1;
            cout<<ans[i];
        }
    }
}