Borderou de evaluare (job #614017)

Compilare: main.cpp: In function 'std::string l(std::string, std::vector<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >)': main.cpp:11:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char> > >::size_type' {aka 'unsigned int'} [-Wsign-compare] 11 | for(int i = 0; i < a.size(); i++) | ~~^~~~~~~~~~ main.cpp:9:10: warning: unused variable 'ok' [-Wunused-variable] 9 | bool ok = false; | ^~ main.cpp: In function 'int main()': main.cpp:32:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 32 | for(int i = 0; i < w.size(); i++) | ~~^~~~~~~~~~ main.cpp:50:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 50 | for(int i = 0; i < v.size(); i++) | ~~^~~~~~~~~~ main.cpp:52:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 52 | if(i == v.size() - 1) | ~~^~~~~~~~~~~~~~~