Problemset - Codeforces

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Codeforces Round 988 (Div. 3)
16:32:25
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Problems

#	Name
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x5405
1856D	More Wrong divide and conquer, interactive	2100	x3289
1856C	To Become Max binary search, brute force, data structures, dp	1600	x12607
1856B	Good Arrays implementation, math	900	x24541
1856A	Tales of a Sort implementation	800	x26684
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x27420
1855A	Dalton the Teacher greedy, math	800	x28249
1854F	Mark and Spaceship brute force, dp	3500	x122
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x432
1854D	Michael and Hotel binary search, interactive, trees	3000	x547
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1532
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3582
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x7070
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x14270
1853B	Fibonaccharsis binary search, brute force, math	1200	x17575
1853A	Desorting brute force, greedy, math	800	x32788
1852F	Panda Meetups data structures, dp, flows	3500	x108
1852E	Rivalries constructive algorithms, data structures, greedy	3400	x169
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x482
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1622
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4537
1852A	Ntarsis' Set binary search, math, number theory	1800	x8148
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x3293
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5943
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x10502
1851D	Prefix Permutation Sums implementation, math	1300	x15384
1851C	Tiles Comeback greedy	1000	x23548
1851B	Parity Sort greedy, sortings, two pointers	800	x29516
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29649
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x8337
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x12658
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x19561
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x23738
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x37953
1850C	Word on the Paper implementation, strings	800	x44855
1850B	Ten Words of Wisdom implementation, sortings	800	x43340
1850A	To My Critics implementation, sortings	800	x57551
1849F	XOR Partition binary search, bitmasks, data structures, divide and conquer, greedy, trees	2700	x729
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x1676
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8656
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x10679
1849B	Monsters greedy, math, sortings	1000	x26537
1849A	Morning Sandwich implementation, math	800	x29761
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1641
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x797
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2649
1848C	Vika and Price Tags math, number theory	1800	x6367
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x15439
1848A	Vika and Her Friends games, math	900	x16941
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x908
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x333
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3828
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x13000
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x20154
1847A	The Man who became a God greedy, sortings	800	x22063
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4460
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3162
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x7115
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x17227
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x19611
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x19296
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x26995
1846A	Rudolph and Cut the Rope implementation, math	800	x32612
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x373
1845E	Boxes and Balls dp, implementation, math	2500	x1344
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7921
1845C	Strong Password binary search, dp, greedy, strings	1400	x14442
1845B	Come Together geometry, implementation, math	900	x21746
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28257
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x139
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x736
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x404
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x788
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1899
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12394
1844C	Particles dp, greedy, implementation, math	1300	x15817
1844B	Permutations & Primes constructive algorithms, math	1000	x18326
1844A	Subtraction Game constructive algorithms, games	800	x24649
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1639
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x5381
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x12591
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x18293
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x33646
1843B	Long Long greedy, math, two pointers	800	x29257
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x34444
1842I	Tenzing and Necklace divide and conquer, dp, greedy	3500	x121
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x704
1842G	Tenzing and Random Operations combinatorics, dp, math, probabilities	2800	x1074
1842F	Tenzing and Tree dfs and similar, greedy, shortest paths, sortings, trees	2500	x1353
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1637
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x4125
1842C	Tenzing and Balls dp	1500	x13037
1842B	Tenzing and Books bitmasks, greedy, math	1100	x17385
1842A	Tenzing and Tsondu games, math	800	x19876
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x501
1841E	Fill the Matrix data structures, greedy, math	2200	x2041
1841D	Pairs of Segments data structures, greedy, sortings, two pointers	2000	x4472
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7906
1841B	Keep it Beautiful implementation	1000	x21627
1841A	Game with Board constructive algorithms, games	800	x24781