ID Problem
15202 P1920   Series Sum Calculation
15203 P1921   Probability of Casino Dice Games
15204 P1922   Balanced Tree Maid Cafe Maximization
15205 P1923   Divide and Conquer: kth Smallest Number
15206 P1924   Maximum Poster Placement on a Wall with Holes
15207 P1925   Maximal Partition Product and Finite Decimal Determination
15208 P1926   Maximizing Brushing Problems
15209 P1927   Minimizing Umbrella Radius
15210 P1928   Alien Password Decompression
15211 P1929   Mysterious Staircase Climb
15212 P1930   Chessboard Gathering
15213 P1931   Arbitrage Detection
15214 P1932   Arithmetic Operations
15215 P1933   Alternate Path in Expo
15216 P1934   Seal Breaking Optimization
15217 P1935   Maximizing Land Development Profit
15218 P1936   Maximizing the Sum of Squares under a Diophantine Constraint
15219 P1937   Barn Stall Allocation
15220 P1938   Bessie's Job Hopping
15221 P1939   Sequence Recurrence Modulo
15222 P1940   Reversible Numbers
15223 P1941   Flappy Bird Challenge
15224 P1942   Binary Word Restoration
15225 P1943   Expected Number of Local Maxima in a Permutation
15226 P1944   Longest Valid Bracket Substring
15227 P1945   Counting Lattice Squares and Equilateral Triangles in a Grid
15228 P1946   Olympic Medal Ranking Optimization
15229 P1947   Guess the Hidden Number
15230 P1948   Telephone Line Repair
15231 P1949   Efficient Password Entry
15232 P1950   Rectangle Cutting
15233 P1951   Counting 2x2 Matrices with Determinant 1 mod N
15234 P1952   Mars Addition Puzzle
15235 P1953   File Name Conversion
15236 P1954   Air Takeoff Scheduling with Deadlines and Precedence Constraints
15237 P1955   Constraint Satisfaction: Equalities and Inequalities
15238 P1956   Minimum Subarray Sum Modulo
15239 P1957   Simple Arithmetic Formatter
15240 P1958   Chessboard Streets: Count Your Ways to School
15241 P1959   Largest Temple Square
15242 P1960   Unique Football Team Ranking
15243 P1961   Minimal Weight Balancing of Nested Scales
15244 P1962   Fibonacci Sequence Modulo
15245 P1963   Permutation Transformation
15246 P1964   Shopping in the Server's System Store
15247 P1965   Circle Game
15248 P1966   Minimum Adjacent Swaps for Matchstick Alignment
15249 P1967   Maximum Cargo Weight Transport
15250 P1968   Optimal Currency Trading
15251 P1969   Block Tower Construction
15252 P1970   Flower Arrangement
15253 P1971   Rabbit's Chess Mistakes
15254 P1972   Distinct Shell Types
15255 P1973   NOI Carnival Scheduling
15256 P1974   Antibody Genome Aggregation
15257 P1975   Counting Inversions After Each Swap
15258 P1976   Non-Intersecting Chords on a Circle
15259 P1977   Minimizing Total Cost for Carpooling
15260 P1978   Maximum k-Set
15261 P1979   Sliding Puzzle on a Board with Fixed Pieces
15262 P1980   Count the Occurrence of a Digit
15263 P1981   Arithmetic Expression Evaluation
15264 P1982   Children's Scores with Feature Values
15265 P1983   Minimum Distinct Station Levels on a Railway
15266 P1984   Optimal Water Boiling Energy
15267 P1985   Flipping Tiles Puzzle
15268 P1986   Minimum Microphones
15269 P1987   Maximum Coin Collection
15270 P1988   Torchbearer's Challenge
15271 P1989   Count the Number of Triangles in an Undirected Graph
15272 P1990   Tiling a 2×N Wall
15273 P1991   Wireless Network Connection
15274 P1992   Grandpa's Clear Path
15275 P1993   Farms and Crops Constraints Analysis
15276 P1994   Combustion Coefficients of an Organic Compound
15277 P1995   Fastest Path in the Intelligent Car Race
15278 P1996   Josephus Elimination Order
15279 P1997   Frequent Difficulties
15280 P1998   Dirichlet Convolution Power Sum
15281 P1999   Counting Faces in a Hypercube
15282 P2000   The Summoning Arrays
15283 P2001   Minimum Coins to Cover All Prices
15284 P2002   Minimum Broadcast Cities for Complete Message Spread
15285 P2003   Supporting Pillars in Floating Boards
15286 P2004   Maximize Land Value for the Capital
15287 P2005   Floor Division of Two Positive Integers
15288 P2006   Skill Selection for Boss Defeat in DNF
15289 P2007   Rubik's Cube Simulation
15290 P2008   Non‐Decreasing Subsequence Sum Score
15291 P2009   Polygon Running Track
15292 P2010   Palindromic Dates
15293 P2011   Resistor Network Voltage Computation
15294 P2012   Summoning the Creator Gene
15295 P2013   Determining Boat Position via Lighthouse Signals
15296 P2014   Course Selection for Maximum Credits
15297 P2015   Prune The Apple Tree
15298 P2016   Ancient Castle Surveillance
15299 P2017   Eliminating Cycles by Direction Assignment
15300 P2018   Optimal Message Broadcast in a Hierarchical Kingdom
15301 P2019   Counting Ordered Quadruples of Squares

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