Compilare: main.cpp: In function 'int main()': main.cpp:18:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (n != strlen(b)) { ~~^~~~~~~~~~~~ main.cpp:32:18: warning: array subscript has type 'char' [-Wchar-subscripts] freq[a[i]]++, freq[b[i]]--; ^ main.cpp:32:32: warning: array subscript has type 'char' [-Wchar-subscripts] freq[a[i]]++, freq[b[i]]--; ^ main.cpp:13:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("shiftright.in","r",stdin); ^ main.cpp:14:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("shiftright.out","w",stdout); ^ main.cpp:16:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n%s\n", a, b); ^