Compilare: main.cpp: In function 'long long int paranteza()': main.cpp:71:25: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int i = 1; i<v.size(); i++) | ~^~~~~~~~~ main.cpp:78:25: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 78 | for(int i = 0; i<v.size(); i++) | ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:136:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 136 | for(int i = 0; i<s.size(); i++) | ~^~~~~~~~~ main.cpp: In function 'long long int paranteza()': main.cpp:116:1: warning: control reaches end of non-void function [-Wreturn-type] 116 | } | ^