Compilare: main.cpp: In function 'bool cmp(int, int)': main.cpp:19:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i <= y.size(); ++i) { ~~^~~~~~~~~~~ main.cpp:22:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz == x.size()) ~~~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:33:56: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (s.size() > Max.size() || s.size() == Max.size() && s < Max) ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~