Compilare: user.cpp: In function ‘int transf(char*)’: user.cpp:18:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<strlen(p); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:33:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d\n", &nmem, &ncom); ^ user.cpp:35:28: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s, 1000, fin); ^