Freaks City

Problem Overview In a competitive selection process, $n$ judges vote for $m$ available brands using a multi-round elimination system. The goal is to determine if a single brand can emerge as the winner or if the selection fails due to a tie in the final round. Elimination Rules The process follows these logic steps until a result is determined: ...

Difficulty range [1, 10], where ≤ 5 is easy, 6 requires thinking for ≤ 30min, 7 is barely solvable (1h). 8 means it's unsolvable but seems not difficult. 9 is currently unsolvable but can be naturally derived from the solution. 10 is extremely difficult to understand even the solution. Thinking time should be around [40, 80] min, not ≤ 30 min. ...

The non-rotating Treap, commonly referred to as the FHQ-Treap, operates without the rotation mechanisms found in traditional Treaps or AVL trees. Its equilibrium is maintained exclusively through deterministic split and merge procedures, combined with randomly assigned priority values. This architecture inherently supports persistent data struc ...

Problem Overview The problem involves merging a sequence of stones where each stone has a weight. The goal is to merge consecutive stones within a sequence into a single stone with a weight equal to the sum of the merged stones, at a cost equal to that sum. The merging must result in a final number of stones between a given range [L, R], and th ...