Compilare: main.cpp: In function 'int main()': main.cpp:85:27: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 85 | if(rez.size() == 2*n) | ~~~~~~~~~~~^~~~~~ main.cpp:84:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 84 | if(pp) | ^