Compilare: user.cpp: In function ‘void ReadInput()’: user.cpp:41:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &M); ^ user.cpp:43:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &seq[i]); ^ user.cpp:46:55: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &query[i].left, &query[i].right); ^ user.cpp: In function ‘void RunMoAlgorithm()’: user.cpp:80:49: warning: ‘last_added’ may be used uninitialized in this function [-Wmaybe-uninitialized] AddInterval(last_added + 1, query[i].right, +1); ^