Compilare: user.cpp: In function ‘int main()’: user.cpp:41:18: warning: unused variable ‘a’ [-Wunused-variable] int i, j, n, a; ^ user.cpp: In function ‘int caut(int)’: user.cpp:12:25: warning: ‘m’ may be used uninitialized in this function [-Wmaybe-uninitialized] int st = 1, dr = m, m; ^ user.cpp: In function ‘bool mere(int, int)’: user.cpp:12:25: warning: ‘m’ may be used uninitialized in this function [-Wmaybe-uninitialized]