Compilare: user.cpp: In function ‘void init(int)’: user.cpp:21:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (rad * part != vec.size()) { ^ user.cpp: In function ‘int main()’: user.cpp:60:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (in, "%d %d", &n, &m); ^ user.cpp:63:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (in, "%d", &x); ^ user.cpp:73:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d %d", &op, &a, &b); ^