Compilare: user.cpp: In function ‘void Form()’: user.cpp:38:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 2; b[i-1] <= a[n]; i++) ^ user.cpp: In function ‘bool CautaBin(int)’: user.cpp:70:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(b[m] == x) return true; ^ user.cpp:71:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(b[m] < x) ^