Problemset - Codeforces

Problems

#	Name
1855A	Dalton the Teacher greedy, math	800	x28099
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	x546
1854C	Expected Destruction combinatorics, dp, math, probabilities	2500	x1530
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3577
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x7064
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x14239
1853B	Fibonaccharsis binary search, brute force, math	1200	x17567
1853A	Desorting brute force, greedy, math	800	x32736
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	x479
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1616
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4531
1852A	Ntarsis' Set binary search, math, number theory	1800	x8145
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x3288
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5937
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x10492
1851D	Prefix Permutation Sums implementation, math	1300	x15377
1851C	Tiles Comeback greedy	1000	x23534
1851B	Parity Sort greedy, sortings, two pointers	800	x29496
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29636
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x8325
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x12637
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x19522
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x23702
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x37864
1850C	Word on the Paper implementation, strings	800	x44743
1850B	Ten Words of Wisdom implementation, sortings	800	x43288
1850A	To My Critics implementation, sortings	800	x57386
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	x1671
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8646
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x10666
1849B	Monsters greedy, math, sortings	1000	x26489
1849A	Morning Sandwich implementation, math	800	x28730
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1639
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	x2647
1848C	Vika and Price Tags math, number theory	1800	x6364
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x15419
1848A	Vika and Her Friends games, math	900	x16935
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x906
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x333
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3824
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12991
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x20143
1847A	The Man who became a God greedy, sortings	800	x22056
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4454
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3156
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x7109
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x17211
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x19598
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x19282
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x26982
1846A	Rudolph and Cut the Rope implementation, math	800	x32602
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x373
1845E	Boxes and Balls dp, implementation, math	2500	x1339
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7914
1845C	Strong Password binary search, dp, greedy, strings	1400	x14428
1845B	Come Together geometry, implementation, math	900	x21731
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28208
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	x734
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	x786
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1898
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12386
1844C	Particles dp, greedy, implementation, math	1300	x15808
1844B	Permutations & Primes constructive algorithms, math	1000	x18319
1844A	Subtraction Game constructive algorithms, games	800	x24644
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1637
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x5379
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x12575
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x18282
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x33623
1843B	Long Long greedy, math, two pointers	800	x29159
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x34430
1842I	Tenzing and Necklace divide and conquer, dp, greedy	3500	x121
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x683
1842G	Tenzing and Random Operations combinatorics, dp, math, probabilities	2800	x1074
1842F	Tenzing and Tree dfs and similar, greedy, shortest paths, sortings, trees	2500	x1351
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1637
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x4122
1842C	Tenzing and Balls dp	1500	x13018
1842B	Tenzing and Books bitmasks, greedy, math	1100	x17366
1842A	Tenzing and Tsondu games, math	800	x19870
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x501
1841E	Fill the Matrix data structures, greedy, math	2200	x2040
1841D	Pairs of Segments data structures, greedy, sortings, two pointers	2000	x4467
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7904
1841B	Keep it Beautiful implementation	1000	x21617
1841A	Game with Board constructive algorithms, games	800	x24761
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x981
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2406
1840F	Railguns brute force, dfs and similar, dp, graphs	2200	x1841
1840E	Character Blocking data structures, hashing, implementation	1600	x8132
1840D	Wooden Toy Festival binary search, greedy, sortings	1400	x13886
1840C	Ski Resort combinatorics, math, two pointers	1000	x28368