Compilare: user.cpp: In function ‘void add_s(char*)’: user.cpp:35:5: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.cpp: In function ‘int main()’: user.cpp:53:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] aux[i++]=c; ^ user.cpp:56:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] aux[i]='\0'; ^ user.cpp:62:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] aux[i++]=c; ^ user.cpp:65:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] aux[i]='\0'; ^ user.cpp:78:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (strcmp(path[i],path[j]) > 0) ^ user.cpp:78:47: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (strcmp(path[i],path[j]) > 0) ^ user.cpp:79:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] swap(path[i],path[j]); ^ user.cpp:79:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] swap(path[i],path[j]); ^ user.cpp:86:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] fprintf(out,"%s\n",path[i]); ^ user.cpp:48:17: warning: unused variable ‘min’ [-Wunused-variable] int files=0,min; ^ user.cpp:74:5: warning: unused variable ‘k’ [-Wunused-variable] int k; ^ user.cpp:46:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dir.in","r",stdin); ^ user.cpp:54:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&c); ^ user.cpp:63:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c",&c); ^