Compilare: user.cpp: In function ‘void normalize(char*)’: user.cpp:63:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (!func[chr]) ^ user.cpp:64:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] func[chr] = next++; ^ user.cpp:65:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] word[i] = func[chr]; ^ user.cpp: In function ‘void read()’: user.cpp:72:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:74:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", buffer); ^ user.cpp:79:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &m); ^ user.cpp:81:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", buffer); ^ user.cpp: In function ‘int main()’: user.cpp:91:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("criptare2.in", "r", stdin); ^ user.cpp:92:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("criptare2.out", "w", stdout); ^