1001–1050 of 1700 problemsPage 21 of 34
Solve any Codeforces or AtCoder problem
Paste a problem or contest URL to open it in the tutor IDE
Supports Codeforces & AtCoder — problem or contest links. Live-contest problems are blocked until the contest ends.
1980DGCD-sequence1400greedy, implementation, math1980EPermutation of Rows and Columns1600constructive algorithms, data structures, greedy1980F1Field Division (easy version)1900data structures, math, sortings1980F2Field Division (hard version)2400math, sortings1980GYasya and the Mysterious Tree2300bitmasks, data structures, dfs and similar1984BLarge Addition1100implementation, math1984C1Magnitude (Easy Version)1300dp, greedy, math1984C2Magnitude (Hard Version)1700combinatorics, dp, greedy1984D"a" String Problem2000brute force, hashing, implementation1984EShuffle2400dp, greedy, trees1988CIncreasing Sequence with Fixed OR1300bitmasks, constructive algorithms, greedy1988DThe Omnipotent Monster Killer2000brute force, dfs and similar, dp1988ERange Minimum Sum2300binary search, brute force, data structures1989BSubstring and Subsequence1200brute force, greedy, strings1989CTwo Movies1400greedy, math1989DSmithing Skill1900brute force, data structures, dp1989EDistance to Different2300combinatorics, dp, math1990BArray Craft1200constructive algorithms, greedy1990CMad MAD Sum1500brute force, greedy, math1990DGrid Puzzle1800bitmasks, brute force, dp1991BAND Reconstruction1100bitmasks, constructive algorithms, greedy1991CAbsolute Zero1300constructive algorithms, greedy, math1991DPrime XOR Coloring1900bitmasks, constructive algorithms, graphs1991EColoring Game1900constructive algorithms, dfs and similar, games1991FTriangle Formation2200brute force, greedy, implementation1994BFun Game1100bitmasks, constructive algorithms, greedy1994CHungry Games1600binary search, dp, two pointers1994DFunny Game1900constructive algorithms, dsu, graphs1994EWooden Game2000bitmasks, greedy, math1995B1Bouquet (Easy Version)1100binary search, brute force, greedy1995B2Bouquet (Hard Version)1700binary search, data structures, greedy1995CSquaring1800brute force, constructive algorithms, greedy1995DCases2300bitmasks, brute force, dp213AGame1700dfs and similar, greedy213BNumbers1900combinatorics, dp213CRelay Race2000dp216ATiling with Hexagons1200implementation, math216CHiring Staff1800greedy216DSpider's Web1700binary search, sortings, two pointers216EMartian Luck2000math, number theory217AIce Skating1200brute force, dfs and similar, dsu217BBlackboard Fibonacci2100brute force, math222CReducing Fractions1800implementation, math, number theory222DOlympiad1900binary search, greedy, sortings222EDecoding Genome1900dp, matrices223BTwo Strings1900data structures, dp, strings223CPartial Sums1900combinatorics, math, number theory226AFlying Saucer Segments1400math226BNaughty Stone Piles1900greedy226CAnniversary2400data structures, implementation, math
Sign in to unlock AI-powered hints and track your progress.