Compilare: user.cpp: In function ‘void quicksort(char (*)[6], int, int, int)’: user.cpp:29:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (pos[c] < pos[midChar]) ^ user.cpp:29:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (pos[c] < pos[midChar]) ^ user.cpp:35:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] else if (pos[c] > pos[midChar]) ^ user.cpp:35:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] else if (pos[c] > pos[midChar]) ^ user.cpp: In function ‘int main()’: user.cpp:73:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] pos[ sir[i] ] = i; ^ user.cpp:58:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zimeria.in", "r", stdin); ^ user.cpp:59:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zimeria.out", "w", stdout); ^ user.cpp:63:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &p); ^ user.cpp:64:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &N); ^ user.cpp:65:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s ", sir); ^ user.cpp:69:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s ", S[i]); ^