Problemset - Codeforces

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Codeforces Round 988 (Div. 3)
40:07:02
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Problems

#	Name
641C	Little Artem and Dance brute force, constructive algorithms, implementation	1800	x3079
641B	Little Artem and Matrix implementation	1400	x3987
641A	Little Artem and Grasshopper implementation	1000	x5937
639F	Bear and Chemistry data structures, dfs and similar, graphs, trees	3300	x423
639E	Bear and Paradox binary search, greedy, math, sortings	2800	x583
639D	Bear and Contribution data structures, greedy, sortings, two pointers	2400	x969
639C	Bear and Polynomials hashing, implementation, math	2200	x1205
639B	Bear and Forgotten Tree 3 constructive algorithms, graphs, trees	1600	x6529
639A	Bear and Displayed Friends implementation	1200	x6154
638D	Three-dimensional Turtle Super Computer brute force, dfs and similar, graphs	1800	x720
638C	Road Improvement *special problem, dfs and similar, graphs, greedy, trees	1800	x1664
638B	Making Genome in Berland *special problem, dfs and similar, strings	1500	x1972
638A	Home Numbers *special problem, constructive algorithms, math	1100	x4045
637D	Running with Obstacles *special problem, data structures, dp, greedy	1600	x2019
637C	Promocodes with Mistakes *special problem, brute force, constructive algorithms, implementation	1400	x2428
637B	Chat Order *special problem, binary search, constructive algorithms, data structures, sortings	1200	x17020
637A	Voting for Photos *special problem, constructive algorithms, implementation	1000	x5417
635A	Orchestra brute force, implementation	1100	x2920
634A	Island Puzzle constructive algorithms, implementation	1300	x3328
633H	Fibonacci-ish II data structures, implementation	3100	x601
633G	Yash And Trees bitmasks, data structures, dfs and similar, math, number theory	2800	x782
633F	The Chocolate Spree dfs and similar, dp, graphs, trees	2600	x1000
633E	Startup Funding binary search, constructive algorithms, data structures, probabilities, two pointers	2400	x585
633D	Fibonacci-ish brute force, dp, hashing, implementation, math	2000	x2814
633C	Spy Syndrome 2 data structures, dp, hashing, implementation, sortings, string suffix structures, strings	1900	x2787
633B	A Trivial Problem brute force, constructive algorithms, math, number theory	1300	x6707
633A	Ebony and Ivory brute force, math, number theory	1100	x12851
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x1101
632E	Thief in a Shop divide and conquer, dp, fft, math	2400	x2827
632D	Longest Subsequence brute force, math, number theory	2100	x3803
632C	The Smallest String Concatenation sortings, strings	1700	x7959
632B	Alice, Bob, Two Teams brute force, constructive algorithms	1400	x4013
632A	Grandma Laura and Apples	1200	x4605
631E	Product Sum data structures, dp, geometry	2600	x2407
631D	Messenger data structures, hashing, implementation, string suffix structures, strings	2100	x2089
631C	Report data structures, sortings	1700	x3800
631B	Print Check constructive algorithms, implementation	1200	x7441
631A	Interview brute force, implementation	900	x9334
630R	Game games, math	1200	x8709
630Q	Pyramids geometry, math	1700	x1284
630P	Area of a Star geometry	2100	x1133
630O	Arrow geometry	2000	x775
630N	Forecast math	1300	x4737
630M	Turn geometry, math	1800	x1184
630L	Cracking the Code implementation, math	1400	x3607
630K	Indivisibility math, number theory	1500	x5367
630J	Divisibility math, number theory	1100	x11184
630I	Parking Lot combinatorics, math	1700	x6852
630H	Benches combinatorics, math	1400	x5029
630G	Challenge Pennants combinatorics, math	1600	x2784
630F	Selection of Personnel combinatorics, math	1300	x6952
630E	A rectangle math	1900	x2339
630D	Hexagons! math	1100	x11079
630C	Lucky Numbers combinatorics, math	1100	x22284
630B	Moore's Law math	1200	x7459
630A	Again Twenty Five! number theory	800	x69465
629E	Famil Door and Roads combinatorics, data structures, dfs and similar, dp, probabilities, trees	2300	x1024
629D	Babaei and Birthday Cake data structures, dp	2000	x4050
629C	Famil Door and Brackets dp, strings	2000	x2802
629B	Far Relative’s Problem brute force	1100	x8053
629A	Far Relative’s Birthday Cake brute force, combinatorics, constructive algorithms, implementation	800	x13460
628F	Bear and Fair Set flows, graphs	2500	x777
628E	Zbazi in Zeydabad data structures, implementation	2300	x897
628D	Magic Numbers dp	2200	x6127
628C	Bear and String Distance greedy, strings	1300	x5858
628B	New Skateboard dp	1300	x10891
628A	Tennis Tournament implementation, math	1000	x6407
627F	Island Puzzle dfs and similar, dsu, graphs, trees	3400	x239
627E	Orchestra two pointers	3000	x593
627D	Preorder Test binary search, dfs and similar, dp, graphs, greedy, trees	2600	x871
627C	Package Delivery data structures, divide and conquer, greedy	2200	x1176
627B	Factory Repairs data structures	1700	x2935
627A	XOR Equation dp, math	1700	x4244
626G	Raffles data structures, dp, greedy, math	3100	x531
626F	Group Projects dp	2400	x2926
626E	Simple Skewness binary search, math, ternary search	2400	x1342
626D	Jerry's Protest brute force, combinatorics, dp, probabilities	1800	x2766
626C	Block Towers brute force, greedy, math, number theory	1600	x4351
626B	Cards constructive algorithms, dp, math	1300	x6628
626A	Robot Sequence brute force, implementation	1000	x6266
625E	Frog Fights data structures, greedy	2800	x347
625D	Finals in arithmetic constructive algorithms, implementation, math	2400	x635
625C	K-special Tables constructive algorithms, implementation	1300	x6834
625B	War of the Corporations constructive algorithms, greedy, strings	1200	x10461
625A	Guest From the Past implementation, math	1700	x5424
624B	Making a String greedy, sortings	1100	x7998
624A	Save Luke math	800	x10361
623E	Transforming Sequence combinatorics, dp, fft, math	3300	x550
623D	Birthday greedy, math, probabilities	2700	x499
623C	Electric Charges binary search, dp	2900	x481
623B	Array GCD dp, greedy, number theory	2300	x2162
623A	Graph and String constructive algorithms, graphs	1800	x4507
622F	The Sum of the k-th Powers math	2600	x3892
622E	Ants in Leaves dfs and similar, greedy, sortings, trees	2200	x2100
622D	Optimal Number Permutation constructive algorithms	1900	x3009
622C	Not Equal on a Segment data structures, implementation	1700	x6727
622B	The Time implementation	900	x9667
622A	Infinite Sequence implementation, math	1000	x9413
621E	Wet Shark and Blocks dp, matrices	2000	x2871
621D	Rat Kwesh and Cheese brute force, constructive algorithms, math	2400	x998