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Problemset

263 problems · filtered by 3 tags

#NameRatingSolved
2246C0mar and Alternating Sumsunrated7.9k
2241EFair and Square16005.8k
2239DHunting the Beast2500601
2236F2Elections in Saransk (hard version)2200958
2217FInterval Game2300885
2217GDown the Pivot2600444
2211FLearning Binary Search24001k
2206IGrowth Factor2900226
2205ESimons and Dividing the Rhythm21001.8k
2200GOperation Permutation22001.2k
2199HSum of MEX2300100
2189D1Little String (Easy Version)19004.2k
2189D2Little String (Hard Version)22002.1k
2184DUnfair Game160010.1k
2182DChristmas Tree Decoration16009.4k
2182F1Christmas Reindeer (easy version)23001.3k
2176FOmega Numbers24001.6k
2174FMosaic Tree2800508
2169FSubsequence Problem2700353
2164F1Chain Prefix Rank (Easy Version)26001.3k
2164F2Chain Prefix Rank (Hard Version)2900648
2163CMonopati15009.6k
2150DAttraction Theory27001k
2145GCost of Coloring2900642
2144CNon-Descending Arrays130015.7k
2135E1Beyond the Palindrome (Easy Version)3300808
2135E2Beyond the Palindrome (Hard Version)3500188
2134FPermutation Oddness2900708
2129DPermutation Blackhole26002.5k
2128DSum of LDS160012.9k
2127FHamed and AghaBalaSar28002.1k
2125ESets of Complementary Sums25001.4k
2122EGreedy Grid Counting26002.1k
2119DToken Removing21003.6k
2115CGellyfish and Eternal Violet27001.5k
2112ETree Colorings22003.5k
2097BBaggage Claim23002k
2096HWonderful XOR Problem3200235
2086DEven String17008.6k
2084EBlossom24001.8k
2077CBinary Subsequence Value Sum23002.4k
2077EAnother Folding Strip2700627
2075EXOR Matrix25001.2k
2066CBitwise Slides23002.6k
2066D1Club of Young Aircraft Builders (easy version)24001.5k
2066D2Club of Young Aircraft Builders (hard version)2900658
2065HBro Thinks He's Him22002k
2063F1Counting Is Not Fun (Easy Version)24001.6k
2056ENested Segments25001.1k
2056F1Xor of Median (Easy Version)2700455
2056F2Xor of Median (Hard Version)3000362
2048GKevin and Matrices2800761
2041HSheet Music23001.1k
2040EControl of Randomness21002.8k
2040FNumber of Cubes2700469
2039EShohag Loves Inversions22002.4k
2039F1Shohag Loves Counting (Easy Version)2800527
2037GNatlan Exploring20003.9k
2034F1Khayyam's Royal Decree (Easy Version)2500910
2034F2Khayyam's Royal Decree (Hard Version)2800610
2032FPeanuts2700501
2030EMEXimize the Score22002k
2028EAlice's Adventures in the Rabbit Hole23002k
2025BBinomial Coefficients, Kind Of110019.9k
2025ECard Game22002.4k
2018F1Speedbreaker Counting (Easy Version)2900344
2001E1Deterministic Heap (Easy Version)24001.6k
1997FChips on a Line27001.3k
1992GUltra-Meow20004.3k
1989EDistance to Different23002.6k
1988FHeartbeat3000481
1984C2Magnitude (Hard Version)17008.8k
1982ENumber of k-good subarrays23001.9k
1975FSet26001.1k
1967CFenwick Tree23002.3k
1967E1Again Counting Arrays (Easy Version)3100449
1967E2Again Counting Arrays (Hard Version)3500231
1957CHow Does the Rook Move?160012.2k
1957ECarousel of Combinations24001.7k
1954DColored Balls18008.3k
1954FUnique Strings3100427
1946EGirl Permutation22003.2k
1943D1Counting Is Fun (Easy Version)24002k
1942GBessie and Cards2800786
1930E2..3...4.... Wonderful! Wonderful!24001.5k
1929DSasha and a Walk in the City19005.9k
1925DGood Trip19004.9k
1924DBalanced Subsequences27001.5k
1920ECounting Binary Strings21003.5k
1919ECounting Prefixes26001.2k
1917DYet Another Inversions Problem23002.1k
1916H1Matrix Rank (Easy Version)2700751
1916H2Matrix Rank (Hard Version)2700681
1914G1Light Bulbs (Easy Version)21002.5k
1909F1Small Permutation Problem (Easy Version)22002.3k
1909F2Small Permutation Problem (Hard Version)25001.3k
1909IShort Permutation Problem1900183
1905EOne-X24001.3k
1895FFancy Arrays26001.1k
1879DSum of XOR Functions170011.1k

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