901–950 of 1700 problemsPage 19 of 34
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1902ECollapsing Strings1900data structures, strings, trees1902FTrees and XOR Queries Again2400data structures, dfs and similar, divide and conquer1903BStORage room1200bitmasks, brute force, constructive algorithms1903CTheofanis' Nightmare1400constructive algorithms, greedy1903D1Maximum And Queries (easy version)1700binary search, bitmasks, brute force1903EGeo Game2000greedy, interactive, math1906EMerge Not Sort1900constructive algorithms, dp1906HTwin Friends2200combinatorics, dp1906JCount BFS Graph2100combinatorics, dp1906MTriangle Construction1700greedy, math1907CRemoval of Unattractive Pairs1200constructive algorithms, greedy, math1907DJumping Through Segments1400binary search, constructive algorithms1907FShift and Reverse1800greedy, sortings1907GLights2200brute force, constructive algorithms, dfs and similar1913CGame with Multiset1300binary search, bitmasks, brute force1913DArray Collapse2100data structures, divide and conquer, dp1913EMatrix Problem2400flows, graphs1917BErase First or Second Letter1100brute force, combinatorics, data structures1917CWatering an Array1600brute force, greedy, implementation1917DYet Another Inversions Problem2300combinatorics, data structures, dp1922BForming Triangles1200combinatorics, constructive algorithms, math1922CClosest Cities1300greedy, implementation, math1922DBerserk Monsters1900brute force, data structures, dsu1922EIncreasing Subsequences1800bitmasks, constructive algorithms, divide and conquer1926CVlad and a Sum of Sum of Digits1200dp, implementation1926DVlad and Division1300bitmasks, greedy1926EVlad and an Odd Ordering1500binary search, bitmasks, data structures1926FVlad and Avoiding X2200bitmasks, brute force, dfs and similar1926GVlad and Trouble at MIT1900dfs and similar, dp, flows192AFunky Numbers1300binary search, brute force, implementation1932CLR-remainders1400brute force, data structures, implementation1932DCard Game1400greedy, implementation1932EFinal Countdown1600implementation, math, number theory1932FFeed Cats1900data structures, dp, sortings1932GMoving Platforms2300graphs, math, number theory1933CTurtle Fingers: Count the Values of k1100brute force, implementation, math1933DTurtle Tenacity: Continual Mods1200constructive algorithms, greedy, math1933ETurtle vs. Rabbit Race: Optimal Trainings1500binary search, implementation, math1933FTurtle Mission: Robot and the Earthquake2100dfs and similar, dp, graphs1933GTurtle Magic: Royal Turtle Shell Pattern2300bitmasks, brute force, combinatorics1936ABitwise Operation Wizard1700bitmasks, constructive algorithms, greedy1936BPinball2000binary search, data structures, implementation1936CPokémon Arena2400data structures, graphs, greedy1937BBinary Path1300dp, greedy, implementation193ACutting Figure1700constructive algorithms, graphs, trees193CHamming Distance2400constructive algorithms, greedy, math1948BArray Fix1100brute force, dp, greedy1948CArrow Path1300brute force, constructive algorithms, dfs and similar1948DTandem Repeats?1700brute force, strings, two pointers1948EClique Partition2100brute force, constructive algorithms, graphs
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