Compilare: main.cpp: In function 'int main()': main.cpp:80:37: warning: array subscript has type 'char' [-Wchar-subscripts] sti[vf][++sti[vf][0]] = v[i]; ^ main.cpp:84:33: warning: array subscript has type 'char' [-Wchar-subscripts] sti[vf][++sti[vf][0]] = '\\'; ^ main.cpp:71:34: 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); ^ main.cpp:72:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dir.out", "w", stdout); ^ main.cpp:74:26: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(v, 1605, stdin); ^