注意点:
- 小题小做.
- 逻辑清晰.
#include<cstdio>
#include<iostream>
#include<cstring>
using namespace std;
char str[50];
int main(){
cin>>str;
int cnt=strlen(str)-1;
bool isNegative=false;
if(str[0]=='-'){
cout<<"-";
int i=cnt;
while(str[i]=='0')i--;
for(;i>=1;i--)
cout<<str[i];
}else {
int i=cnt;
while(str[i]=='0')i--;
for(;i>=0;i--)
cout<<str[i];
}
printf("\n");
return 0;
}