Problemset - Codeforces

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Problems

#	Name
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x3862
1808B	Playing in a Casino math, sortings	1200	x17462
1808A	Lucky Numbers brute force, implementation	900	x18444
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x19726
1807G1	Subsequence Addition (Easy Version) brute force, data structures, dp, greedy, implementation, sortings	1100	x19307
1807F	Bouncy Ball brute force, dfs and similar, implementation	1700	x6385
1807E	Interview binary search, implementation, interactive	1300	x13250
1807D	Odd Queries data structures, implementation	900	x34064
1807C	Find and Replace greedy, implementation, strings	800	x30763
1807B	Grab the Candies greedy	800	x42639
1807A	Plus or Minus implementation	800	x63775
1806F2	GCD Master (hard version) greedy, math, sortings	2900	x300
1806F1	GCD Master (easy version) greedy, math, number theory, sortings	2900	x360
1806E	Tree Master brute force, data structures, dfs and similar, trees	2200	x2876
1806D	DSU Master combinatorics, dp, dsu, math	2500	x941
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7701
1806B	Mex Master constructive algorithms, greedy	900	x17919
1806A	Walking Master geometry, greedy, math	800	x25624
1805F2	Survival of the Weakest (hard version) greedy, math, sortings, two pointers	3100	x355
1805F1	Survival of the Weakest (easy version) binary search, brute force, implementation, math, sortings	2600	x929
1805E	There Should Be a Lot of Maximums brute force, data structures, dfs and similar, dp, trees, two pointers	2300	x1653
1805D	A Wide, Wide Graph dfs and similar, dp, graphs, greedy, trees	1800	x6753
1805C	Place for a Selfie binary search, data structures, geometry, math	1400	x12693
1805B	The String Has a Target greedy, strings	800	x18721
1805A	We Need the Zero bitmasks, brute force	800	x24270
1804H	Code Lock bitmasks, dp	3300	x190
1804G	Flow Control data structures, dsu, implementation	3500	x207
1804F	Approximate Diameter binary search, divide and conquer, graphs, shortest paths	2700	x972
1804E	Routing bitmasks, brute force, dfs and similar, dp, graphs	2400	x1483
1804D	Accommodation brute force, dp, greedy, implementation	2000	x4695
1804C	Pull Your Luck brute force, greedy, math, number theory	1500	x12280
1804B	Vaccination greedy, implementation	1000	x14333
1804A	Lame King greedy, math	800	x18013
1802B	Settlement of Guinea Pigs greedy, implementation, math	1000	x13429
1802A	Likes greedy, implementation	800	x15937
1801G	A task for substrings data structures, string suffix structures, strings	3400	x416
1801F	Another n-dimensional chocolate bar dp, math, meet-in-the-middle, number theory	2700	x602
1801E	Gasoline prices data structures, divide and conquer, dsu, hashing, trees	3000	x467
1801D	The way home binary search, data structures, dp, graphs, greedy, shortest paths, sortings	2100	x2284
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x3511
1801B	Buying gifts data structures, greedy, sortings	1800	x6384
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8673
1800G	Symmetree dfs and similar, hashing, implementation, trees	2200	x2129
1800F	Dasha and Nightmares bitmasks, hashing, meet-in-the-middle, strings	1900	x3966
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x13021
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x13002
1800D	Remove Two Letters data structures, greedy, hashing, strings	1200	x24080
1800C2	Powering the Hero (hard version) data structures, greedy	1100	x22949
1800C1	Powering the Hero (easy version) data structures, greedy	1000	x23983
1800B	Count the Number of Pairs greedy, strings	1000	x25432
1800A	Is It a Cat? implementation, strings	800	x31831
1799H	Tree Cutting bitmasks, dfs and similar, dp	3200	x286
1799G	Count Voting combinatorics, dp, math	2600	x796
1799F	Halve or Subtract binary search, brute force, dp, greedy, sortings	2700	x852
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1222
1799D2	Hot Start Up (hard version) data structures, dp	2100	x2540
1799D1	Hot Start Up (easy version) dp	1900	x4601
1799C	Double Lexicographically Minimum greedy, strings	1700	x5931
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x11453
1799A	Recent Actions data structures, greedy, implementation, math	800	x11641
1798F	Gifts from Grandfather Ahmed dp, math, number theory	2500	x505
1798E	Multitest Generator brute force, dp	2300	x1632
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x10193
1798C	Candy Store greedy, math, number theory	1700	x8289
1798B	Three Sevens brute force, data structures, greedy, implementation	1000	x16792
1798A	Showstopper greedy, implementation, sortings	800	x19952
1797F	Li Hua and Path data structures, dfs and similar, divide and conquer, dsu, trees	3000	x361
1797E	Li Hua and Array brute force, data structures, dsu, math, number theory, two pointers	2300	x1305
1797D	Li Hua and Tree brute force, data structures, dfs and similar, dp, implementation, trees	1900	x4032
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x7769
1797B	Li Hua and Pattern constructive algorithms, greedy	1100	x16361
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x17594
1796F	Strange Triples brute force, math, number theory	2900	x175
1796E	Colored Subgraphs dfs and similar, dp, games, greedy, trees	2500	x772
1796D	Maximum Subarray data structures, dp, greedy, two pointers	2000	x4430
1796C	Maximum Set binary search, math	1600	x10571
1796B	Asterisk-Minor Template implementation, strings	1000	x16652
1796A	Typical Interview Problem brute force, implementation, strings	800	x18903
1795G	Removal Sequences bitmasks, dfs and similar, graphs	2700	x690
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x1130
1795E	Explosions? binary search, data structures, dp, greedy, math	2200	x2069
1795D	Triangle Coloring combinatorics, math	1600	x9317
1795C	Tea Tasting binary search, data structures, implementation	1500	x12787
1795B	Ideal Point brute force, geometry, greedy	900	x22193
1795A	Two Towers brute force, implementation, strings	800	x23704
1794E	Labeling the Tree with Distances data structures, dp, greedy, hashing, implementation, trees	2400	x1117
1794D	Counting Factorizations combinatorics, divide and conquer, dp, math, number theory	1900	x3628
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x14130
1794B	Not Dividing constructive algorithms, greedy, math	900	x23168
1794A	Prefix and Suffix Array strings	800	x17248
1793F	Rebrending brute force, data structures, divide and conquer, implementation	2600	x1411
1793E	Velepin and Marketing binary search, data structures, dp, greedy, sortings, two pointers	2600	x1104
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x6285
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x21014
1793B	Fedya and Array constructive algorithms, math	1100	x15925
1793A	Yet Another Promotion greedy, math	800	x18123
1792F2	Graph Coloring (hard version) brute force, combinatorics, divide and conquer, dp, fft, graphs	2900	x399
1792F1	Graph Coloring (easy version) combinatorics, dp, graphs	2700	x743
1792E	Divisors and Table brute force, dfs and similar, dp, number theory	2400	x1400
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x6332