Compilare: main.cpp: In function 'bool identic(std::vector<unsigned int>)': main.cpp:8:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < p.size(); i++){ ~~^~~~~~~~~~ main.cpp:9:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(p[i] != i){ main.cpp: In function 'int main()': main.cpp:29:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < n; i++){ ~~^~~