Compilare: main.cpp: In function 'void afis(std::vector<int>, int)': main.cpp:10:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i == print.size()) return; ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:36:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= n+k && print.size() < n/2; i++) { ~~~~~~~~~~~~~^~~~~