Problemset - Codeforces

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Before contest
Codeforces Round 976 (Div. 2) and Divide By Zero 9.0
00:11:35
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Kotlin Heroes: Episode 11
23:11:34
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Problems

#	Name
455E	Function data structures	2900	x679
455D	Serega and Fun data structures	2700	x2956
455C	Civilization dfs and similar, dp, dsu, ternary search, trees	2100	x5710
455B	A Lot of Games dfs and similar, dp, games, implementation, strings, trees	1900	x5964
455A	Boredom dp	1500	x58057
453E	Little Pony and Lord Tirek data structures	3100	x720
453D	Little Pony and Elements of Harmony dp, matrices	3000	x469
453C	Little Pony and Summer Sun Celebration constructive algorithms, dfs and similar, graphs	2200	x1633
453B	Little Pony and Harmony Chest bitmasks, brute force, dp	2000	x4680
453A	Little Pony and Expected Maximum probabilities	1600	x10426
452F	Permutation data structures, divide and conquer, hashing	2700	x1495
452E	Three strings data structures, dsu, string suffix structures, strings	2400	x1062
452D	Washer, Dryer, Folder greedy, implementation	1900	x1502
452C	Magic Trick combinatorics, math, probabilities	2100	x1623
452B	4-point polyline brute force, constructive algorithms, geometry, trees	1800	x1998
451E	Devu and Flowers bitmasks, combinatorics, number theory	2300	x3595
451D	Count Good Substrings math	2000	x4726
451C	Predict Outcome of the Game brute force, implementation, math	1700	x3328
449E	Jzzhu and Squares dp, math, number theory	2900	x285
449D	Jzzhu and Numbers bitmasks, combinatorics, dp	2400	x4390
449C	Jzzhu and Apples constructive algorithms, number theory	2500	x2257
449B	Jzzhu and Cities graphs, greedy, shortest paths	2000	x8488
449A	Jzzhu and Chocolate greedy, math	1700	x3936
448E	Divisors brute force, dfs and similar, implementation, number theory	2200	x1539
448D	Multiplication Table binary search, brute force	1800	x13992
448C	Painting Fence divide and conquer, dp, greedy	1900	x8169
448B	Suffix Structures implementation, strings	1400	x16095
446E	DZY Loves Bridges math, matrices	3100	x133
446D	DZY Loves Games math, matrices, probabilities	2800	x394
446C	DZY Loves Fibonacci Numbers data structures, math, number theory	2400	x3328
446B	DZY Loves Modification brute force, data structures, greedy	2000	x3578
446A	DZY Loves Sequences dp, implementation, two pointers	1600	x12528
445B	DZY Loves Chemistry dfs and similar, dsu, greedy	1400	x12554
444E	DZY Loves Planting binary search, dsu, trees	2700	x768
444D	DZY Loves Strings binary search, hashing, strings, two pointers	2500	x773
444C	DZY Loves Colors data structures	2400	x2912
444B	DZY Loves FFT probabilities	2300	x1067
444A	DZY Loves Physics greedy, math	1600	x3409
443B	Kolya and Tandem Repeat brute force, implementation, strings	1500	x4058
442E	Gena and Second Distance geometry	3100	x172
442D	Adam and Tree data structures, trees	2600	x989
442C	Artem and Array data structures, greedy	2500	x1773
442B	Andrey and Problem greedy, math, probabilities	1800	x5228
442A	Borya and Hanabi bitmasks, brute force, implementation	1700	x2109
441E	Valera and Number bitmasks, dp, math, probabilities	2400	x704
441D	Valera and Swaps constructive algorithms, dsu, graphs, implementation, math, string suffix structures	2100	x1107
441C	Valera and Tubes constructive algorithms, dfs and similar, implementation	1500	x11189
441B	Valera and Fruits greedy, implementation	1400	x7067
440D	Berland Federalization dp, trees	2200	x683
440C	One-Based Arithmetic brute force, dfs and similar, divide and conquer	1800	x910
440B	Balancer greedy, implementation	1600	x1970
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1568
439D	Devu and his Brother binary search, sortings, ternary search, two pointers	1700	x6047
439C	Devu and Partitioning of the Array brute force, constructive algorithms, implementation, number theory	1700	x3871
438E	The Child and Binary Tree combinatorics, divide and conquer, fft, number theory	3100	x1882
438D	The Child and Sequence data structures, math	2300	x8524
437E	The Child and Polygon dp, geometry	2500	x706
437D	The Child and Zoo dsu, sortings	1900	x3375
437C	The Child and Toy graphs, greedy, sortings	1400	x13915
437B	The Child and Set bitmasks, greedy, implementation, sortings	1500	x9463
436F	Banners brute force, data structures, dp	3000	x392
436E	Cardboard Box data structures, greedy	2600	x1340
436D	Pudding Monsters dp	2800	x326
436C	Dungeons and Candies dsu, graphs, greedy, trees	1800	x2657
436B	Om Nom and Spiders implementation, math	1400	x3054
436A	Feed with Candy greedy	1500	x3470
435E	Special Graph	2500	x240
435D	Special Grid brute force, dp, greedy	2000	x756
435C	Cardiogram implementation	1600	x2570
435B	Pasha Maximizes greedy	1400	x6997
434E	Furukawa Nagisa's Tree binary search, divide and conquer, sortings, trees	3000	x260
434D	Nanami's Power Plant flows	2900	x464
433E	Tachibana Kanade's Tofu dp	2500	x478
433D	Nanami's Digital Board dsu, implementation	2000	x1242
433C	Ryouko's Memory Note implementation, math, sortings	1800	x2486
432E	Square Tiling constructive algorithms, greedy	2300	x690
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x9045
432C	Prime Swaps greedy, sortings	1800	x2517
431E	Chemistry Experiment binary search, data structures, ternary search	2200	x1001
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2313
431C	k-Tree dp, implementation, trees	1600	x25521
430B	Balls Game brute force, two pointers	1400	x3706
430A	Points and Segments (easy) constructive algorithms, sortings	1600	x2238
429E	Points and Segments graphs	3000	x858
429D	Tricky Function data structures, divide and conquer, geometry	2200	x2915
429C	Guess the Tree bitmasks, constructive algorithms, dp, greedy, trees	2300	x946
429B	Working out dp	1600	x8636
427E	Police Patrol greedy, implementation, math, ternary search	2000	x1428
427D	Match & Catch dp, string suffix structures, strings	2200	x2177
427C	Checkposts dfs and similar, graphs, two pointers	1700	x13876
425E	Sereja and Sets dp	2500	x644
425D	Sereja and Squares binary search, data structures, hashing	2300	x1433
425C	Sereja and Two Sequences data structures, dp	2300	x898
425B	Sereja and Table bitmasks, greedy	2200	x1311
425A	Sereja and Swaps brute force, sortings	1500	x3886
424E	Colored Jenga dfs and similar, dp, probabilities	2500	x132
424D	Biathlon Track binary search, brute force, constructive algorithms, data structures, dp	2300	x562
424C	Magic Formulas math	1600	x5340
421D	Bug in Code binary search, data structures, sortings	1900	x531
420E	Playing the ball geometry	2600	x217