Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
2688 孙浚轩 字符串拼接 C++ Compile Error 0 MS 0 KB 177 2024-01-20 17:34:42

Tests(0/0):

Code:

#include<iostream> #include<cstring> using namespace std; int main(){ char a[],b[]; int n; cin>>a>>b>>n; strcat(a,b); cout<<a[n-1]; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:5:12: error: storage size of 'a' isn't known
     char a[],b[];
            ^
Main.cc:5:16: error: storage size of 'b' isn't known
     char a[],b[];
                ^