Problemset - Codeforces

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Codeforces Round 974 (Div. 3)
19:02:20
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Problems

#	Name
984A	Game sortings	800	x19366
983E	NN country binary search, data structures, trees	2800	x935
983D	Arkady and Rectangles data structures	3300	x386
983C	Elevator dp, graphs, shortest paths	2400	x827
983B	XOR-pyramid dp	1800	x5487
983A	Finite or not? implementation, math	1700	x4539
982F	The Meeting Place Cannot Be Changed dfs and similar, graphs	2700	x190
982E	Billiard geometry, number theory	2600	x704
982D	Shark brute force, data structures, dsu, trees	1900	x2288
982C	Cut 'em all! dfs and similar, dp, graphs, greedy, trees	1500	x11436
982B	Bus of Characters data structures, greedy, implementation	1300	x8271
982A	Row brute force, constructive algorithms	1200	x9053
981H	K Paths combinatorics, data structures, dp, fft, math	3100	x270
981G	Magic multisets data structures	2500	x683
981F	Round Marriage binary search, graph matchings, greedy	2500	x782
981E	Addition on Segments bitmasks, data structures, divide and conquer, dp	2200	x2084
981D	Bookshelves bitmasks, dp, greedy	1900	x3236
981C	Useful Decomposition implementation, trees	1400	x5375
981B	Businessmen Problems sortings	1000	x6912
981A	Antipalindrome brute force, implementation, strings	900	x9252
980F	Cactus to Tree dp, graphs, trees	2900	x196
980E	The Number Games data structures, greedy, trees	2200	x1918
980D	Perfect Groups dp, math, number theory	2100	x2658
980C	Posterized games, greedy	1700	x3777
980B	Marlin constructive algorithms	1600	x4680
980A	Links and Pearls implementation, math	900	x10407
979E	Kuro and Topological Parity dp	2400	x624
979D	Kuro and GCD and XOR and SUM binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees	2200	x1808
979C	Kuro and Walking Route dfs and similar, trees	1600	x6243
979B	Treasure Hunt greedy	1800	x4406
979A	Pizza, Pizza, Pizza!!! math	1000	x13700
978G	Petya's Exams greedy, implementation, sortings	1700	x4339
978F	Mentors binary search, data structures, implementation	1500	x8248
978E	Bus Video System combinatorics, math	1400	x9508
978D	Almost Arithmetic Progression brute force, implementation, math	1500	x8695
978C	Letters binary search, implementation, two pointers	1000	x25412
978B	File Name greedy, strings	800	x36123
978A	Remove Duplicates implementation	800	x26959
977F	Consecutive Subsequence dp	1700	x18734
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x20470
977D	Divide by three, multiply by two dfs and similar, math, sortings	1400	x18252
977C	Less or Equal sortings	1200	x34323
977B	Two-gram implementation, strings	900	x38944
977A	Wrong Subtraction implementation	800	x165592
976F	Minimal k-covering flows, graphs	2500	x577
976E	Well played! greedy, sortings	2100	x2388
976D	Degree Set constructive algorithms, graphs, implementation	2500	x680
976C	Nested Segments greedy, implementation, sortings	1500	x6835
976B	Lara Croft and the New Game implementation, math	1300	x5712
976A	Minimum Binary Number implementation	800	x10521
975E	Hag's Khashba geometry	2600	x305
975D	Ghosts geometry, math	2000	x2146
975C	Valhalla Siege binary search	1400	x9601
975B	Mancala brute force, implementation	1100	x6823
975A	Aramic script implementation, strings	900	x9218
967B	Watering System math, sortings	1000	x7062
967A	Mind the Gap implementation	1100	x4359
965E	Short Code data structures, dp, greedy, strings, trees	2200	x1437
965D	Single-use Stones binary search, flows, greedy, two pointers	1900	x3072
965C	Greedy Arkady math	2000	x2091
965B	Battleship implementation	1300	x4562
965A	Paper Airplanes math	800	x9454
964B	Messages math	1300	x4346
964A	Splits math	800	x9629
963E	Circles of Waiting math	3100	x547
963D	Frequency of String hashing, string suffix structures, strings	2500	x1971
963C	Cutting Rectangle brute force, math, number theory	2600	x569
963B	Destruction of a Tree constructive algorithms, dfs and similar, dp, greedy, trees	2000	x2789
963A	Alternating Sum math, number theory	1800	x3290
962G	Visible Black Areas data structures, dsu, geometry, trees	2800	x180
962F	Simple Cycles Edges dfs and similar, graphs, trees	2400	x1326
962E	Byteland, Berland and Disputed Cities constructive algorithms, greedy	2200	x1062
962D	Merge Equals data structures, implementation	1600	x6834
962C	Make a Square brute force, implementation, math	1400	x7815
962B	Students in Railway Carriage constructive algorithms, greedy, implementation	1300	x7661
962A	Equator implementation	1300	x12769
961G	Partitions combinatorics, math, number theory	2700	x1348
961F	k-substrings binary search, hashing, string suffix structures	2700	x785
961E	Tufurama data structures	1900	x3599
961D	Pair Of Lines geometry	2000	x4250
961C	Chessboard bitmasks, brute force, implementation	1400	x5291
961B	Lecture Sleep data structures, dp, implementation, two pointers	1200	x20706
961A	Tetris implementation	900	x10031
960H	Santa's Gift data structures, trees	3100	x273
960G	Bandit Blues combinatorics, dp, fft, math	2900	x1065
960F	Pathwalks data structures, dp, graphs	2100	x2957
960E	Alternating Tree combinatorics, dfs and similar, divide and conquer, dp, probabilities, trees	2300	x1928
960D	Full Binary Tree Queries brute force, implementation, trees	2100	x1880
960C	Subsequence Counting bitmasks, constructive algorithms, greedy, implementation	1700	x3921
960B	Minimize the error data structures, greedy, sortings	1500	x7860
960A	Check the string implementation	1200	x8164
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x2078
959E	Mahmoud and Ehab and the xor-MST bitmasks, dp, graphs, implementation, math	1900	x3390
959D	Mahmoud and Ehab and another array construction task constructive algorithms, greedy, math, number theory	1900	x3083
959C	Mahmoud and Ehab and the wrong algorithm constructive algorithms, trees	1500	x5763
959B	Mahmoud and Ehab and the message dsu, greedy, implementation	1200	x9581
959A	Mahmoud and Ehab and the even-odd game games, math	800	x46721
958F3	Lightsabers (hard) fft	2600	x692
958F2	Lightsabers (medium) binary search, two pointers	1800	x1227
958F1	Lightsabers (easy) implementation	1500	x1607