Compilare: user.cpp: In function ‘int main()’: user.cpp:40:136: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(y > x && R == 0 && E && !D.empty() && last_rotated != -1 && D[last_rotated] < piesa(y, x) && D.size() - last_rotated <= E) ^ user.cpp:66:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < D.size(); i++) ^ user.cpp:30:52: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(fscanf(fin, "%d %d %d", &n, &R, &E), cR = R; n > 0; n--) ^ user.cpp:34:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &x, &y); ^