Problemset - Codeforces

Problems

#	Name
1860A	Not a Substring constructive algorithms, strings	900	x21848
1859F	Teleportation in Byteland data structures, dfs and similar, divide and conquer, graphs, shortest paths, trees	3200	x411
1859E	Maximum Monogonosity brute force, dp, math	2500	x1818
1859D	Andrey and Escape from Capygrad binary search, data structures, dp, dsu, greedy, sortings	1800	x7089
1859C	Another Permutation Problem brute force, dp, greedy, math	1200	x17140
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x27927
1859A	United We Stand constructive algorithms, math, number theory	800	x33530
1858E2	Rollbacks (Hard Version) data structures, interactive, trees	2600	x1077
1858E1	Rollbacks (Easy Version) brute force, data structures, dfs and similar, trees	2500	x1345
1858D	Trees and Segments brute force, data structures, dp, greedy, two pointers	2200	x2855
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x23286
1858B	The Walkway brute force, dp, greedy, math, number theory	1500	x11437
1858A	Buttons games, greedy, math	800	x39852
1857G	Counting Graphs combinatorics, divide and conquer, dsu, graphs, greedy, sortings, trees	2000	x4539
1857F	Sum and Product binary search, data structures, math	1600	x11800
1857E	Power of Points math, sortings	1500	x12648
1857D	Strong Vertices math, sortings, trees	1300	x19981
1857C	Assembly via Minimums greedy, sortings	1200	x26793
1857B	Maximum Rounding greedy, implementation, math	1100	x23193
1857A	Array Coloring greedy, math	800	x49675
1856E2	PermuTree (hard version) bitmasks, dfs and similar, dp, fft, greedy, implementation, math, trees	2700	x1440
1856E1	PermuTree (easy version) dfs and similar, dp, trees	1800	x5415
1856D	More Wrong divide and conquer, interactive	2100	x3296
1856C	To Become Max binary search, brute force, data structures, dp	1600	x12642
1856B	Good Arrays implementation, math	900	x24565
1856A	Tales of a Sort implementation	800	x26698
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x27503
1855A	Dalton the Teacher greedy, math	800	x28262
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	x1537
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3591
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x7077
1854A1	Dual (Easy Version) constructive algorithms, math	1400	x14284
1853B	Fibonaccharsis binary search, brute force, math	1200	x17583
1853A	Desorting brute force, greedy, math	800	x32890
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	x486
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1625
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4547
1852A	Ntarsis' Set binary search, math, number theory	1800	x8160
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x3304
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5958
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x10526
1851D	Prefix Permutation Sums implementation, math	1300	x15403
1851C	Tiles Comeback greedy	1000	x23571
1851B	Parity Sort greedy, sortings, two pointers	800	x29554
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29666
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x8362
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x12682
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x19618
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x23849
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x38089
1850C	Word on the Paper implementation, strings	800	x44989
1850B	Ten Words of Wisdom implementation, sortings	800	x43421
1850A	To My Critics implementation, sortings	800	x57744
1849F	XOR Partition binary search, bitmasks, data structures, divide and conquer, greedy, trees	2700	x730
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x1687
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8685
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x10704
1849B	Monsters greedy, math, sortings	1000	x26621
1849A	Morning Sandwich implementation, math	800	x29869
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1648
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x800
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2649
1848C	Vika and Price Tags math, number theory	1800	x6372
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x15483
1848A	Vika and Her Friends games, math	900	x16955
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x913
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x334
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3832
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x13012
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x20172
1847A	The Man who became a God greedy, sortings	800	x22074
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4476
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3163
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x7120
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x17255
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x19669
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x19314
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x27016
1846A	Rudolph and Cut the Rope implementation, math	800	x32626
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x373
1845E	Boxes and Balls dp, implementation, math	2500	x1354
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x7930
1845C	Strong Password binary search, dp, greedy, strings	1400	x14459
1845B	Come Together geometry, implementation, math	900	x21761
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x28331
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x140
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x825
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x405
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x790
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1900
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12409
1844C	Particles dp, greedy, implementation, math	1300	x15831
1844B	Permutations & Primes constructive algorithms, math	1000	x18340
1844A	Subtraction Game constructive algorithms, games	800	x24667
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1655