Problemset - Codeforces

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Codeforces Round 987 (Div. 2)
05:08:50
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Problems

#	Name
311E	Biologist flows	2300	x1207
311D	Interval Cubing data structures, math	2600	x673
311C	Fetch the Treasure brute force, data structures, graphs, shortest paths	2500	x484
311B	Cats Transport data structures, dp	2400	x3478
311A	The Closest Pair constructive algorithms, implementation	1300	x4037
309E	Sheep binary search, greedy	2900	x225
309D	Tennis Rackets brute force, geometry	2700	x175
309C	Memory for Arrays binary search, bitmasks, greedy	1900	x1366
309B	Context Advertising dp, two pointers	2100	x719
309A	Morning run binary search, math, two pointers	2000	x488
306D	Polygon constructive algorithms, geometry	2300	x284
306C	White, Black and White Again combinatorics, number theory	2100	x486
306B	Optimizer data structures, greedy, sortings	2100	x444
306A	Candies implementation	800	x7046
305E	Playing with String games	2300	x630
305D	Olya and Graph combinatorics, math	2200	x512
305C	Ivan and Powers of Two greedy, implementation	1600	x2456
305B	Continued Fractions brute force, implementation, math	1700	x2150
305A	Strange Addition brute force, constructive algorithms, implementation	1600	x4800
304B	Calendar brute force, implementation	1300	x2985
304A	Pythagorean Theorem II brute force, math	1200	x10696
303E	Random Ranking dp, math, probabilities	3000	x321
303D	Rotatable Number math, number theory	2600	x298
303C	Minimum Modular brute force, graphs, math, number theory	2400	x887
303B	Rectangle Puzzle II implementation, math	1700	x1347
303A	Lucky Permutation Triple constructive algorithms, implementation, math	1300	x7968
302B	Eugeny and Play List binary search, implementation, two pointers	1200	x8223
302A	Eugeny and Array implementation	800	x9103
301E	Yaroslav and Arrangements dp	2800	x366
301D	Yaroslav and Divisors data structures	2200	x2405
301C	Yaroslav and Algorithm constructive algorithms	2500	x475
301B	Yaroslav and Time binary search, graphs, shortest paths	2100	x2409
301A	Yaroslav and Sequence constructive algorithms	1800	x3088
300E	Empire Strikes Back binary search, math, number theory	2300	x1043
300D	Painting Square dp, fft	2300	x756
300C	Beautiful Numbers brute force, combinatorics	1800	x9626
300B	Coach brute force, dfs and similar, graphs	1500	x6369
300A	Array brute force, constructive algorithms, implementation	1100	x23156
299B	Ksusha the Squirrel brute force, implementation	900	x5347
299A	Ksusha and Array brute force, number theory, sortings	1000	x8120
298B	Sail brute force, greedy, implementation	1200	x14250
298A	Snow Footprints greedy, implementation	1300	x10975
297E	Mystic Carvings data structures	3000	x376
297D	Color the Carpet constructive algorithms	2500	x589
297C	Splitting the Uniqueness constructive algorithms	2400	x961
297B	Fish Weight constructive algorithms, greedy	1600	x3506
297A	Parity Game constructive algorithms	1700	x3626
296B	Yaroslav and Two Strings combinatorics, dp	2000	x2287
296A	Yaroslav and Permutations greedy, math	1100	x23277
295E	Yaroslav and Points data structures	2500	x686
295D	Greg and Caves combinatorics, dp	2400	x657
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1734
295B	Greg and Graph dp, graphs, shortest paths	1700	x14278
295A	Greg and Array data structures, implementation	1400	x18226
294E	Shaass the Great dp, trees	2300	x950
294D	Shaass and Painter Robot brute force, implementation, number theory	2500	x363
294C	Shaass and Lights combinatorics, number theory	1900	x3834
294B	Shaass and Bookshelf dp, greedy	1700	x4566
294A	Shaass and Oskols implementation, math	800	x23779
293E	Close Vertices data structures, divide and conquer, trees	2700	x1445
293D	Ksusha and Square geometry, math, probabilities, two pointers	2700	x239
293C	Cube Problem brute force, math, number theory	2400	x575
293B	Distinct Paths brute force, combinatorics	2700	x870
293A	Weird Game games, greedy	1500	x2899
292E	Copying Data data structures	1900	x4171
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2442
292C	Beautiful IP Addresses brute force	2000	x1172
292B	Network Topology graphs, implementation	1200	x8477
292A	SMSC implementation	1100	x2706
291E	Tree-String Problem *special problem, dfs and similar, hashing, strings	2000	x1317
291D	Parallel Programming *special problem, greedy	1600	x1479
291C	Network Mask *special problem, bitmasks, brute force, implementation	1600	x1682
291B	Command Line Arguments *special problem, implementation, strings	1300	x3032
291A	Spyke Talks *special problem, implementation, sortings	800	x6102
290F	Greedy Petya *special problem, dfs and similar, graphs, greedy	2800	x134
290E	HQ *special problem, constructive algorithms	2500	x205
290D	Orange *special problem, implementation	1400	x1804
290C	WTF? *special problem, graph matchings, implementation, trees	1700	x1550
290B	QR code *special problem, implementation	1500	x2446
290A	Mysterious strings *special problem, implementation	1400	x3004
289B	Polo the Penguin and Matrix brute force, dp, implementation, sortings, ternary search	1400	x17412
289A	Polo the Penguin and Segments brute force, implementation	1100	x9295
288E	Polo the Penguin and Lucky Numbers dp, implementation, math	2800	x298
288D	Polo the Penguin and Trees combinatorics, dfs and similar, trees	2400	x758
288C	Polo the Penguin and XOR operation implementation, math	1700	x2307
288B	Polo the Penguin and Houses combinatorics	1500	x2939
288A	Polo the Penguin and Strings greedy	1300	x6511
287B	Pipeline binary search, math	1700	x9874
287A	IQ Test brute force, implementation	1100	x19935
286E	Ladies' Shop constructive algorithms, fft, math	2800	x833
286D	Tourists data structures, sortings	2600	x379
286C	Main Sequence greedy, implementation	2100	x1513
286B	Shifting implementation	2200	x1119
286A	Lucky Permutation constructive algorithms, math	1400	x3182
285E	Positions in Permutations combinatorics, dp, math	2600	x1000
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1555
285C	Building Permutation greedy, implementation, sortings	1200	x23400
285B	Find Marble implementation	1200	x15065
285A	Slightly Decreasing Permutations greedy, implementation	1100	x13378
284B	Cows and Poker Game brute force, implementation	1000	x6859