Compilare: user.cpp: In function ‘bool isClique()’: user.cpp:15:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < sub.size(); ++ i) ^ user.cpp:16:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i + 1; j < sub.size(); ++ j) ^ user.cpp: In function ‘void countCliques()’: user.cpp:28:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(bit = 0; bit < dir.size(); ++ bit) ^ user.cpp:33:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sub.size() > maxsz) ^ user.cpp:37:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(sub.size() == maxsz) ^ user.cpp:23:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j, num, s, bit; ^ user.cpp:23:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, num, s, bit; ^