为什么全错？

jlr999999 @ 2023-03-04 11:47:07

by InversionShadow @ 2023-03-04 11:48:44

代码？

by iterator_traits @ 2023-03-04 11:49:47

@jlr999999 您的输入呢？

by iterator_traits @ 2023-03-04 11:50:09

帮楼主贴一下代码

#include <iostream>
using namespace std;
int main(){
    int a,a1,a2,a3;
    cout<<a3<<a2<<a1<<a;
    return 0;
}

by WA_sir @ 2023-03-04 11:51:55

6

by WA_sir @ 2023-03-04 11:52:42

@jlr999999 你没有输入

by WA_sir @ 2023-03-04 11:53:52

@jlr999999 处理也有问题

by codejiahui @ 2023-03-04 12:13:29

@jlr999999

#include<cstdio>
#include<cstring>
#include<iostream>
using namespace std;
int main()
{ 
    string s;
    cin >> s;
    for(int i = s.length() - 1;i >= 0;i--)
        cout << s[i];
    return 0;
}

by __Tonycyt__ @ 2023-03-04 12:19:08

是s.size()吧@codejiahui

by iterator_traits @ 2023-03-04 12:24:33

@Tonycyt 这两个貌似都有，而且作用一样

by __Tonycyt__ @ 2023-03-04 12:25:08

emmm^……