Compilare: main.cpp: In function 'long long int get(int)': main.cpp:23:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= n; i++) ~~^~~~ main.cpp:27:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(H.size() > p) ~~~~~~~~~^~~ main.cpp: At global scope: main.cpp:45:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] main() ^ main.cpp: In function 'int main()': main.cpp:49:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i <= n; i++) ~~^~~~