Problemset - Codeforces

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Codeforces Round 987 (Div. 2)
13:28:34
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Problems

#	Name
2036F	XORificator 3000 bitmasks, dp, number theory, two pointers	1900	x3015
2036E	Reverse the Rivers binary search, constructive algorithms, data structures, greedy	1600	x5963
2036D	I Love 1543 brute force, implementation, matrices	1300	x10776
2035D	Yet Another Real Number Problem binary search, data structures, divide and conquer, greedy, implementation, math	1800	x4257
2035C	Alya and Permutation bitmasks, constructive algorithms, math	1400	x7693
2033F	Kosuke's Sloth brute force, math, number theory	1800	x5045
2033E	Sakurako, Kosuke, and the Permutation brute force, data structures, dfs and similar, dsu, graphs, greedy, math	1400	x9587
2033D	Kousuke's Assignment data structures, dp, dsu, greedy, math	1300	x12660
2033C	Sakurako's Field Trip dp, greedy, two pointers	1400	x12253
2032D	Genokraken constructive algorithms, data structures, graphs, greedy, implementation, interactive, trees, two pointers	1800	x4304
2032C	Trinity binary search, math, sortings, two pointers	1400	x10569
2030D	QED's Favorite Permutation data structures, implementation, sortings	1700	x6103
2029D	Cool Graph constructive algorithms, data structures, dfs and similar, dsu, graphs, greedy, trees	1900	x2379
2029C	New Rating binary search, data structures, dp, greedy	1700	x4411
2027D1	The Endspeaker (Easy Version) binary search, dp, graphs, greedy, implementation, two pointers	1700	x4489
2027C	Add Zeros brute force, data structures, dfs and similar, dp, graphs, greedy	1500	x8523
2026D	Sums of Segments binary search, data structures, dp, implementation, math	1900	x3833
2026C	Action Figures binary search, brute force, constructive algorithms, data structures, greedy, implementation	1500	x8332
2026B	Black Cells binary search, brute force, constructive algorithms, greedy	1300	x11388
2025D	Attribute Checks brute force, data structures, dp, implementation, math, two pointers	1800	x5772
2025C	New Game binary search, brute force, greedy, implementation, sortings, two pointers	1300	x14258
2023B	Skipping binary search, dp, graphs, shortest paths	1700	x4727
2023A	Concatenation of Arrays constructive algorithms, greedy, math, sortings	1300	x11643
2022D1	Asesino (Easy Version) binary search, brute force, constructive algorithms, implementation, interactive	1900	x2745
2022C	Gerrymandering dp, implementation	1800	x3763
2022B	Kar Salesman binary search, greedy, math	1300	x9729
2021C2	Adjust The Presentation (Hard Version) constructive algorithms, data structures, greedy, implementation, sortings	1900	x3517
2021C1	Adjust The Presentation (Easy Version) constructive algorithms, greedy	1300	x11294
2020D	Connect the Dots brute force, dp, dsu, graphs, math, trees	1800	x5611
2020C	Bitwise Balancing bitmasks, hashing, implementation, math, schedules, ternary search	1400	x14264
2018C	Tree Pruning brute force, dfs and similar, greedy, sortings, trees	1700	x6084
2018B	Speedbreaker binary search, data structures, dp, greedy, implementation, two pointers	1900	x3896
2018A	Cards Partition 2-sat, brute force, greedy, implementation, math	1600	x10057
2014H	Robin Hood Archery data structures, divide and conquer, greedy, hashing	1900	x3442
2014E	Rendez-vous de Marian et Robin dfs and similar, graphs, shortest paths	1800	x5531
2014D	Robert Hood and Mrs Hood brute force, data structures, greedy, sortings	1400	x11934
2013D	Minimize the Difference binary search, greedy	1900	x5955
2013C	Password Cracking constructive algorithms, interactive, strings	1400	x11521
2010C2	Message Transmission Error (hard version) hashing, string suffix structures, strings, two pointers	1700	x3078
2010C1	Message Transmission Error (easy version) brute force, strings	1400	x6937
2009G1	Yunli's Subarray Queries (easy version) binary search, data structures, two pointers	1900	x3747
2009F	Firefly's Queries bitmasks, data structures, flows, math	1700	x6434
2009E	Klee's SUPER DUPER LARGE Array!!! binary search, math, ternary search	1400	x13054
2009D	Satyam and Counting geometry, math	1400	x14171
2008G	Sakurako's Task binary search, greedy, math, number theory	1800	x5103
2008F	Sakurako's Box combinatorics, math, number theory	1400	x12424
2008E	Alternating String brute force, data structures, dp, greedy, implementation, strings	1500	x9893
2007C	Dora and C++ math, number theory	1500	x12146
2006B	Iris and the Tree brute force, data structures, dfs and similar, dsu, math, trees	1800	x3289
2006A	Iris and Game on the Tree constructive algorithms, dfs and similar, games, graphs, greedy, trees	1700	x6706
2005C	Lazy Narek dp, implementation, strings	1800	x6980
2004D	Colored Portals binary search, brute force, data structures, graphs, greedy, implementation, shortest paths	1600	x10670
2003D1	Turtle and a MEX Problem (Easy Version) greedy, math	1500	x11080
2002D1	DFS Checker (Easy Version) brute force, data structures, dfs and similar, graphs, hashing, trees	1900	x4313
2001D	Longest Max Min Subsequence brute force, constructive algorithms, data structures, greedy, implementation	1900	x5005
2001C	Guess The Tree binary search, brute force, dfs and similar, divide and conquer, dsu, greedy, interactive, trees	1500	x10639
2000F	Color Rows and Columns dp, greedy, implementation, math	1900	x5357
2000E	Photoshoot for Gorillas combinatorics, data structures, greedy, math	1400	x13206
1999G2	Ruler (hard version) binary search, interactive, ternary search	1700	x7849
1999G1	Ruler (easy version) binary search, interactive	1500	x10270
1999F	Expected Median combinatorics, math	1500	x10333
1999E	Triple Operations dp, implementation, math	1300	x18581
1998C	Perform Operations to Maximize Score binary search, brute force, constructive algorithms, greedy, implementation	1900	x6107
1997D	Maximize the Root binary search, dfs and similar, dp, greedy, trees	1500	x12465
1996F	Bomb binary search, greedy, math	1900	x4747
1996E	Decode combinatorics, data structures, implementation, math	1600	x9761
1996D	Fun binary search, brute force, combinatorics, math, number theory	1500	x15916
1995C	Squaring brute force, constructive algorithms, greedy, implementation, math, number theory	1800	x8550
1995B2	Bouquet (Hard Version) binary search, data structures, greedy, math, sortings, two pointers	1700	x8760
1994D	Funny Game constructive algorithms, dsu, graphs, greedy, math, number theory, trees	1900	x5743
1994C	Hungry Games binary search, dp, two pointers	1600	x10746
1993C	Light Switches implementation, math	1400	x13587
1992F	Valuable Cards brute force, dp, greedy, number theory, two pointers	1900	x5751
1992E	Novice's Mistake brute force, constructive algorithms, implementation, math, strings	1700	x9135
1991E	Coloring Game constructive algorithms, dfs and similar, games, graphs, greedy, interactive	1900	x4214
1991D	Prime XOR Coloring bitmasks, constructive algorithms, graphs, greedy, math, number theory	1900	x6655
1991C	Absolute Zero constructive algorithms, greedy, math	1300	x14545
1990D	Grid Puzzle bitmasks, brute force, dp, greedy, implementation	1800	x6293
1990C	Mad MAD Sum brute force, greedy, math	1500	x11594
1989D	Smithing Skill brute force, data structures, dp, greedy, math, sortings, two pointers	1900	x5951
1989C	Two Movies greedy, math	1400	x18474
1988C	Increasing Sequence with Fixed OR bitmasks, constructive algorithms, greedy	1300	x16573
1987D	World is Mine dp, games	1800	x7162
1986F	Non-academic Problem dfs and similar, graphs, trees	1900	x4563
1986E	Beautiful Array greedy, math, number theory, sortings	1700	x8817
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x15204
1985H1	Maximize the Largest Component (Easy Version) brute force, data structures, dfs and similar, dsu, graphs, implementation	1700	x5602
1985G	D-Function combinatorics, math, number theory	1600	x9392
1985F	Final Boss binary search, data structures	1500	x15320
1984C2	Magnitude (Hard Version) combinatorics, dp, greedy, math	1700	x7411
1984C1	Magnitude (Easy Version) dp, greedy, math	1300	x16640
1983D	Swap Dilemma constructive algorithms, data structures, divide and conquer, greedy, math, sortings	1700	x8206
1983C	Have Your Cake and Eat It Too binary search, brute force, greedy, implementation	1400	x12559
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x7155
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x5342
1981B	Turtle and an Infinite Sequence bitmasks, math	1300	x13735
1980F1	Field Division (easy version) data structures, math, sortings	1900	x3741
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x10515
1980D	GCD-sequence greedy, implementation, math, number theory	1400	x14301
1980C	Sofia and the Lost Operations constructive algorithms, greedy	1300	x18611

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