ID Problem
18802 P5572   Totient Sum of LCM and GCD Ratio
18803 P5573   Spaceship Meeting Point
18804 P5574   Task Scheduling on Multi-CPU
18805 P5575   Expected Weight of Black‐White Graph Components
18806 P5576   Longest Common Substring in Binary Quotes
18807 P5577   No‐Carry Addition Subsequence Sum
18808 P5578   Magical Potion Preparation
18809 P5579   Simulated Grass Mowing
18810 P5580   Fibonacci Suffix Search
18811 P5581   Gambling Machine Game
18812 P5582   Escape from the Deathland
18813 P5583   Ethan's Magical Collections
18814 P5584   Crystal Destruction
18815 P5585   Maximize Survival by Minimizing Energy Consumption in Homework Scheduling
18816 P5586   Online Sequence Manipulation
18817 P5587   Typing Practice KPM
18818 P5588   Colorful Tree Paths
18819 P5589   Power Deletion Game
18820 P5590   Fair Racing Game
18821 P5591   Peppa and George's Math Puzzle
18822 P5592   Grouping Boys by Clothing Characteristics
18823 P5593   Counting Colorful Chains in a Tree
18824 P5594   Coach's Simulation Contest Preparation
18825 P5595   Constructing the Scores
18826 P5596   Counting Natural Number Pairs
18827 P5597   Treasure Tree Command Sequence
18828 P5598   Ball Arrangements and Chaos
18829 P5599   Text Editor Find and Replace
18830 P5600   Compass and Straightedge Construction
18831 P5601   Exam Simulation: Selecting the Correct Option
18832 P5602   Maximizing Comfort with a Subset of Dishes
18833 P5603   Token Transfer in a Directed Acyclic Graph Board Game
18834 P5604   Dynamic Sequence Query with Permutation Mapping
18835 P5605   Discrete Logarithm Existence on Prime Power Modulo
18836 P5606   Graduation Trip Permutations
18837 P5607   Maintaining Sets and Union Queries
18838 P5608   Range Expression Evaluation with Updates
18839 P5609   Bugged Modular Sum Query
18840 P5610   Online Query with Divisible Division
18841 P5611   Maximum Subarray Sum Query with Filtering
18842 P5612   Sequence Maintenance Operations
18843 P5613   Hikari and the Magic Platforms
18844 P5614   Counting Ordered Triples with XOR Constraint
18845 P5615   Banana Tunnels and Convex Polygons
18846 P5616   Kirito and Eugeo's LCM Challenge
18847 P5617   Maximizing the Union Area of Selected Circles
18848 P5618   Minimum Spanning Tree in a 2×N Grid
18849 P5619   Expected Score in Shooting Subtrees
18850 P5620   Coin Scattering Challenge
18851 P5621   Maximum Cuteness Value
18852 P5622   Unavoidable Houses
18853 P5623   Abandoned Skyline
18854 P5624   Madeline's Dream
18855 P5626   Minimal Comparisons in Worst-Case Sorting
18856 P5627   Summation of Logarithms of Lowbit Products
18857 P5628   Maximizing Road Importance in a Construction-Affected Tree
18858 P5629   Minimum Original Numbers for Maximum Annihilation
18859 P5630   Reconstructing the Circuit with a Bottleneck Constraint
18860 P5631   Minimum MEX Spanning Tree
18861 P5632   Minimum Cut of an Undirected Graph
18862 P5633   Minimum Spanning Tree with Degree Constraint at a Specific Node
18863 P5634   Minimum Comparisons in Invisible Sorting
18864 P5635   Modular Sum Game Outcome
18865 P5637   Expected Hitting Time in a Random Walk on a Tree
18866 P5638   Minimum Travel Time with Teleporter
18867 P5639   Minimum Time to Evade the Surveillance
18868 P5640   Mismatch Suffix Prefix Count
18869 P5641   Iterated Subsegment Sum Expansion
18870 P5642   Threshold Path Weight on Tree
18871 P5643   Expected Steps to Cover a Set on a Tree
18872 P5644   Last Hunter Standing
18873 P5645   Guaranteed Spring in Dou Di Zhu
18874 P5646   Recover the Hidden Password
18875 P5647   Maximizing Message Passing in a Directed Tree
18876 P5648   Pleasure Sum Query
18877 P5649   Weighted Tree Operations
18878 P5650   Maximize Difference in a Binary Substring
18879 P5651   XOR Path in Graph with Zero-Cycle Property
18880 P5652   Optimal Token Movement Game
18881 P5653   Maximizing Weighted Cumulative Sum
18882 P5654   Recursive Maximum Query Recurrence
18883 P5655   LCM Queries on Array
18884 P5656   Positive Solutions of Linear Diophantine Equations
18885 P5657   K-th Gray Code
18886 P5658   Distinct Valid Bracket Substrings on a Tree
18887 P5659   Lexicographically Smallest Node Permutation after Edge Swaps in a Tree
18888 P5660   Count Ones in a Binary String
18889 P5661   Calculate Total Transit Cost with Discount Tickets
18890 P5662   Maximizing Coins with Souvenir Trading
18891 P5663   Raw Material Supply
18892 P5664   Delicious Combination
18893 P5665   Minimizing Program Running Time in Data Segmentation
18894 P5666   Centroid Sum After Edge Removal
18895 P5667   Polynomial Extrapolation via Finite Differences
18896 P5668   Modular Equation Solver
18897 P5669   Tree Path Color Queries
18898 P5670   Range Addition and XOR Query with Bit Extraction
18899 P5671   Angle and Hypotenuse Puzzle
18900 P5672   Ethan's Crystal Ball Energy Sum
18901 P5673   Valued Gift Interval

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