Compilare: main.cpp: In function 'bool check(int, int)': main.cpp:12:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | if(lung > s[1].size()) | ~~~~~^~~~~~~~~~~~~ main.cpp:20:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(i = lung; i < s[1].size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp:29:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | if(lung > s[2].size()) | ~~~~~^~~~~~~~~~~~~ main.cpp:39:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(i = lung; i < s[2].size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp:50:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | if(lung > s[3].size()) | ~~~~~^~~~~~~~~~~~~ main.cpp:60:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(i = lung; i < s[3].size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp:71:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | if(lung > s[4].size()) | ~~~~~^~~~~~~~~~~~~ main.cpp:79:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for(i = lung; i < s[4].size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:104:13: warning: 'poz' may be used uninitialized [-Wmaybe-uninitialized] 104 | cout << poz; | ^~~ main.cpp:94:31: note: 'poz' was declared here 94 | int st = 1, dr = 60, mid, poz; | ^~~