Compilare: user.cpp: In function ‘int main()’: user.cpp:18:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (strlen(a) > Max) ^ user.cpp:25:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (strlen(a) == Max) ^ user.cpp:37:16: warning: unused variable ‘Max’ [-Wunused-variable] int n, Max = 0, j1, i, j, k = n1, m; ^ user.cpp:38:14: warning: unused variable ‘ok1’ [-Wunused-variable] bool ok1 = true; ^