Compilare: main.cpp: In function 'void Lee()': main.cpp:62:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<pp>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for( int i = 0; i < v[ poz ].size(); i++ ) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:91:20: warning: comparison of integer expressions of different signedness: 'std::size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 91 | if( ok.count() < n ) | ~~~~~~~~~~~^~~