Compilare: user.cpp: In function ‘int main()’: user.cpp:71:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (q = 0; q + K <= Oy.size(); q++) { ^ user.cpp:57:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &N, &K); ^ user.cpp:59:47: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%hd %hd", &val[i].x, &val[i].y); ^ user.cpp:79:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("drept.out", "w", stdout); ^