/in/foo.cc:11:17: error: stray '\357' in program
     int  num = 1；
                 ^
/in/foo.cc:11:18: error: stray '\274' in program
     int  num = 1；
                  ^
/in/foo.cc:11:19: error: stray '\233' in program
     int  num = 1；
                   ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:12:5: error: expected ',' or ';' before 'int'
     int* a = NULL;
     ^~~
/in/foo.cc:13:5: error: 'a' was not declared in this scope
     a = (int*)calloc(n, sizeof(int));
     ^