Compilare: main.cpp: In function 'bool brackets_correspond(char, char)': main.cpp:12:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 12 | return open_bracket == '(' && close_bracket == ')' || | ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:14:24: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 14 | open_bracket == '{' && close_bracket == '}'; | ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:23:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for (int i = 0; i < brackets.length(); ++i) { | ~~^~~~~~~~~~~~~~~~~~~