>Link
luogu P1307
>解题思路
一道弱智题
注意处理后面的0
>代码
#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;
int len;
string s;
bool p;
int main()
{
cin >> s;
if (s[0] == '-') putchar ('-');
if (s[0] == '0') {
putchar ('0'); return 0;}
len = s.size();
for (int i = len - 1; i >= 0; i--)
{
if (s[i] == '-') continue;
if (s[i] == '0' && !p) continue;
p = 1;
putchar (s[i]);
}
return 0;
}