Compilare: main.cpp: In function 'int readInt()': main.cpp:15:19: warning: variable 'semn' set but not used [-Wunused-but-set-variable] 15 | int ch, rez = 0, semn = 1; | ^~~~ main.cpp: In function 'int main()': main.cpp:60:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for( int j = 0; j < Y[ i ].size(); j++ ) | ~~^~~~~~~~~~~~~~~ main.cpp:61:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for( int k = j + 1; k < Y[ i ].size(); k++ ) { | ~~^~~~~~~~~~~~~~~