Borderou de evaluare (job #707026)

Compilare: main.cpp: In function 'bool pereche(std::string, std::string)': main.cpp:17:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 17 | for(int k = 0; k < a.size()-1; k++){ | ~~^~~~~~~~~~~~ main.cpp:19:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 19 | for(int j = 0; j < a.size()-1; j++){ | ~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:56:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::__cxx11::basic_string<char>, int> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 56 | for(int i = 0; i < nou.size(); i++){ | ~~^~~~~~~~~~~~ main.cpp:62:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 62 | for(auto [cuv, ind]: nou){ | ^ main.cpp:38:9: warning: unused variable 'cn' [-Wunused-variable] 38 | int cn = n; | ^~