Compilare: user.cpp: In function ‘void adun(char*, char*, char*)’: user.cpp:36:26: warning: argument to ‘sizeof’ in ‘void* memset(void*, int, size_t)’ call is the same expression as the destination; did you mean to provide an explicit length? [-Wsizeof-pointer-memaccess] memset(A , 0 , sizeof(A)); ^ user.cpp:46:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] A[++A[0]] = t % BASE; ^ user.cpp: In function ‘void copie(char*, char*)’: user.cpp:52:26: warning: argument to ‘sizeof’ in ‘void* memset(void*, int, size_t)’ call is the same expression as the destination; did you mean to provide an explicit length? [-Wsizeof-pointer-memaccess] memset(A , 0 , sizeof(A)); ^ user.cpp: In function ‘void afis(char*)’: user.cpp:60:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] printf("%d", A[A[0]]); ^ user.cpp: In function ‘int main()’: user.cpp:16:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("nunta.in" , "r" , stdin); ^ user.cpp:17:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("nunta.out" , "w" , stdout); ^ user.cpp:18:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%hd" , &n); ^