#include <iostream>
#include <cstring>
using namespace std;
int main(){
cout<<"{";
cout<<"\";
return 0;
}

错误提示：

编译失败
/tmp/compiler_6tzzf_ws/src:6:7: 警告：缺少结尾的 " 字符
    6 | cout<<"\";
      |       ^
/tmp/compiler_6tzzf_ws/src:6:7: 错误：缺少结尾的 " 字符
    6 | cout<<"\";
      |       ^~~~
/tmp/compiler_6tzzf_ws/src: 在函数‘int main()’中:
/tmp/compiler_6tzzf_ws/src:7:1: 错误：expected primary-expression before ‘return’
    7 | return 0;
      | ^~~~~~

luogu上的编译器的结果