Compilare: user.cpp: In function ‘int op1(int, int)’: user.cpp:29:34: warning: ‘mid’ may be used uninitialized in this function [-Wmaybe-uninitialized] int first=1, last=n, rez=-1, mid; ^ user.cpp: In function ‘int op2(int, int)’: user.cpp:53:34: warning: ‘mid’ may be used uninitialized in this function [-Wmaybe-uninitialized] int first=1, last=n, rez=-1, mid; ^