运行 ID: 731

Main.cc:2:5: error: cannot declare ‘::main’ to be a global variable
 int main{
     ^~~~
Main.cc:3:28: error: expected ‘}’ before ‘;’ token
     printf("abcdefghijklm");
                            ^
Main.cc:4:11: error: expected constructor, destructor, or type conversion before ‘(’ token
     printf("nopqrstuvwxyz");
           ^
Main.cc:5:11: error: expected constructor, destructor, or type conversion before ‘(’ token
     printf("zyxwvutsrqpon");
           ^
Main.cc:6:11: error: expected constructor, destructor, or type conversion before ‘(’ token
     printf("mlkjihgfedcba");
           ^
Main.cc:7:1: error: expected unqualified-id before ‘return’
 return 0;
 ^~~~~~
Main.cc:8:1: error: expected declaration before ‘}’ token
 }
 ^