Compilare: user.cpp: In function ‘void Insert(long long int)’: user.cpp:19:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < table[which].size(); i++) ^ user.cpp: In function ‘bool Find(long long int)’: user.cpp:27:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < table[which].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:42:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < b.size(); j++) ^ user.cpp:47:14: warning: statement has no effect [-Wunused-value] for (step; step > 0; step /= 2) ^ user.cpp:56:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < m + answer && j < b.size(); j++) { ^