Compilare: main.cpp: In function 'bool lung(int)': main.cpp:43:17: warning: array subscript has type 'char' [-Wchar-subscripts] f[h[j++].o]=1; ^ main.cpp: In function 'int main()': main.cpp:58:28: warning: format '%s' expects argument of type 'char*', but argument 3 has type 'char (*)[50001]' [-Wformat=] fscanf(fin,"%s",&s[i]); ^ main.cpp:56:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ main.cpp:58:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%s",&s[i]); ^