Main.cc: In function ‘int main()’:
Main.cc:8:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
8 | int main()
| ^~
Main.cc:8:9: note: remove parentheses to default-initialize a variable
8 | int main()
| ^~
| --
Main.cc:8:9: note: or replace parentheses with braces to value-initialize a variable
Main.cc:9:1: error: a function-definition is not allowed here before ‘{’ token
9 | {
| ^