这行代码：if(s[i]>='0'&&s[i]<='0')
没看懂是干什么的。
by User966827 @ 2024-03-16 15:57:50
@[User966827](/user/966827)
```cpp
#include<bits/stdc++.h>
using namespace std;
int main()
{
int cnt=0;
char ch='0';
string s;
cin>>s;
for(int i=0;i<s.length();i++){
if(s[i]>='0'&&s[i]<='9')
cnt++;
else{
ch=s[i];
break;
}
}
cnt--;
while(s[cnt]=='0'&&cnt>0)
cnt--;
for(int i=cnt-1;i>=0;i--)
cout<<s[i];
if(ch=='0')
return 0;
cout<<ch;
if(ch=='%')
return 0;
int num=s.length()-cnt-1-1,num1=s.length()-1;
while(s[num1]=='0'&&num1>num)
num1--;
while(s[num]=='0'&&num<s.length()-1)
num++;
for(int i=num;i<=num1;i++)
cout<<s[i];
return 0;
}
```
by lucy2012 @ 2024-03-16 16:06:51
```cpp
#include<bits/stdc++.h>
using namespace std;
int main() {
int cnt = 0,a;
char ch = '0';
bool b=false;
string s;
cin >> s;
for (int i = 0; i < s.length(); i++)
{
if (s[i] >= '0' && s[i] <= '9')
{
cnt++;
}
else
{
ch = s[i];
a=i+1;
break;
}
}
cnt--;
while (s[cnt] == '0' && cnt > 0)
{
if(s[cnt]>'0'&&s[cnt]<='9')
{
break;
}
cnt--;
}
for (int i = cnt ; i >= 0; i--)
{
cout << s[i];
}
if (ch == '0')
{
return 0;
}
cout << ch;
if (ch == '%')
{
return 0;
}
for(int i=s.length();i>=a;i--)
{
if(s[i]=='0')
{
if(!b)
{
b=false;
}
}
if(s[i]>='1'&&s[i]<='9')
{
b=true;
}
if(i!=a)
{
if(b)
{
cout<<s[i];
}
}
else
{
if(s.length()-a==1)
{
cout<<s[i];
}
if(s[a]!='0')
{
cout<<s[i];
}
}
}
return 0;
}
```
把后面的反转改了
by User966827 @ 2024-03-16 16:37:17