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Solve any Codeforces or AtCoder problem
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596CWilbur and Points1700combinatorics, greedy, sortings596DWilbur and Trees2300dp, math, probabilities603AAlternative Thinking1600dp, greedy, math603BMoodular Arithmetic1800combinatorics, dfs and similar, dsu603CLieges of Legendre2200games, math607AChain Reaction1600binary search, dp607BZuma1900dp613APeter and Snow Blower1900binary search, geometry, ternary search613BSkills1900binary search, brute force, dp61CCapture Valerian2000math61DEternal Victory1800dfs and similar, graphs, greedy61EEnemy is weak1900data structures, trees622AInfinite Sequence1000implementation, math622EAnts in Leaves2200dfs and similar, greedy, sortings626BCards1300constructive algorithms, dp, math626CBlock Towers1600brute force, greedy, math626DJerry's Protest1800brute force, combinatorics, dp626ESimple Skewness2400binary search, math, ternary search626FGroup Projects2400dp632DLongest Subsequence2100brute force, math, number theory632EThief in a Shop2400divide and conquer, dp, fft632FMagic Matrix2400brute force, divide and conquer, graphs633AEbony and Ivory1100brute force, math, number theory633BA Trivial Problem1300brute force, constructive algorithms, math633CSpy Syndrome 21900data structures, dp, hashing633DFibonacci-ish2000brute force, dp, hashing633EStartup Funding2400binary search, constructive algorithms, data structures637BChat Order1200*special, binary search, constructive algorithms637DRunning with Obstacles1600*special, data structures, dp644BProcessing Queries1700*special, constructive algorithms, data structures644CHostname Aliases2100*special, binary search, data structures648CПуть Робота1100constructive algorithms, dfs and similar, graphs648DСобачки и миски1900data structures, greedy, sortings648EСобери число2300graphs, shortest paths650AWatchmen1400data structures, geometry, math650BImage Preview1900binary search, brute force, dp650CTable Compression2200dfs and similar, dp, dsu651AJoysticks1100dp, greedy, implementation651BBeautiful Paintings1200greedy, sortings65AHarry Potter and Three Spells1800implementation, math65BHarry Potter and the History of Magic1700brute force, greedy, implementation65CHarry Potter and the Golden Snitch2100binary search, geometry660ACo-prime Array1200greedy, implementation, math660CHard Process1600binary search, dp, two pointers660EDifferent Subsets For All Tuples2300combinatorics, math665CSimple Strings1300dp, greedy, strings665DSimple Subset1800constructive algorithms, greedy, number theory665EBeautiful Subarrays2100data structures, divide and conquer, strings665FFour Divisors2400data structures, dp, math671ARecycling Bottles1800dp, geometry, greedy
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