Problems
Beauty Permutation Queries#11732
Very hard · Bitwise Operations · Data Structures · Greedy algorithms
Finally a Problem Without a Legend#11729
Very hard · Bitwise Operations · Shortest paths · Graphs · Dynamic programming
Link-Cut Dumplings#11728
Hard · Bitwise Operations · Number theory · Combinatorics · Dynamic programming
Annihilator Gun#11727
Medium · Implementation
Traditional Game#11730
Very hard · Games · Greedy algorithms · Math
Coloring Geysers#11731
Medium