Phase 4 / greedy, inversions
Phase 5 / prime_sieve, nearest_prime
Phase 5 / set_theory, greedy
Phase 4 / cycle_decomposition, parity_position
Phase 4 / dp, house_robber_variant
Phase 4 / array_rotation, monotonicity
Phase 4 / patience_sorting, sequence_decomposition
Phase 4 / binary_search_on_answer
Phase 3 / array-jump
Phase 3 / string-split
Phase 3 / orientation-flow
Phase 3 / set-cover