Problemset - Codeforces

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Codeforces Round (Div. 2)
7 days

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Problems

#	Name
449A	Jzzhu and Chocolate greedy, math	1700	x3938
448E	Divisors brute force, dfs and similar, implementation, number theory	2200	x1539
448D	Multiplication Table binary search, brute force	1800	x14034
448C	Painting Fence divide and conquer, dp, greedy	1900	x8174
448B	Suffix Structures implementation, strings	1400	x16105
448A	Rewards implementation	800	x24210
447B	DZY Loves Strings greedy, implementation	1000	x20278
447A	DZY Loves Hash implementation	800	x9582
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	x3332
446B	DZY Loves Modification brute force, data structures, greedy	2000	x3579
446A	DZY Loves Sequences dp, implementation, two pointers	1600	x12541
445B	DZY Loves Chemistry dfs and similar, dsu, greedy	1400	x12585
445A	DZY Loves Chessboard dfs and similar, implementation	1200	x29668
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	x3416
443B	Kolya and Tandem Repeat brute force, implementation, strings	1500	x4059
443A	Anton and Letters constructive algorithms, implementation	800	x89408
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	x1775
442B	Andrey and Problem greedy, math, probabilities	1800	x5234
442A	Borya and Hanabi bitmasks, brute force, implementation	1700	x2128
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	x11196
441B	Valera and Fruits greedy, implementation	1400	x7072
441A	Valera and Antique Items implementation	1000	x18492
440D	Berland Federalization dp, trees	2200	x686
440C	One-Based Arithmetic brute force, dfs and similar, divide and conquer	1800	x911
440B	Balancer greedy, implementation	1600	x1970
440A	Forgotten Episode implementation	800	x7340
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1568
439D	Devu and his Brother binary search, sortings, ternary search, two pointers	1700	x6062
439C	Devu and Partitioning of the Array brute force, constructive algorithms, implementation, number theory	1700	x3904
439B	Devu, the Dumb Guy implementation, sortings	1200	x14314
439A	Devu, the Singer and Churu, the Joker greedy, implementation	900	x25306
438E	The Child and Binary Tree combinatorics, divide and conquer, fft, number theory	3100	x1883
438D	The Child and Sequence data structures, math	2300	x8558
437E	The Child and Polygon dp, geometry	2500	x706
437D	The Child and Zoo dsu, sortings	1900	x3377
437C	The Child and Toy graphs, greedy, sortings	1400	x13935
437B	The Child and Set bitmasks, greedy, implementation, sortings	1500	x9485
437A	The Child and Homework implementation	1300	x8999
436F	Banners brute force, data structures, dp	3000	x393
436E	Cardboard Box data structures, greedy	2600	x1344
436D	Pudding Monsters dp	2800	x326
436C	Dungeons and Candies dsu, graphs, greedy, trees	1800	x2662
436B	Om Nom and Spiders implementation, math	1400	x3054
436A	Feed with Candy greedy	1500	x3471
435E	Special Graph	2500	x240
435D	Special Grid brute force, dp, greedy	2000	x756
435C	Cardiogram implementation	1600	x2570
435B	Pasha Maximizes greedy	1400	x7006
435A	Queue on Bus Stop implementation	1000	x10160
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	x479
433D	Nanami's Digital Board dsu, implementation	2000	x1242
433C	Ryouko's Memory Note implementation, math, sortings	1800	x2486
433B	Kuriyama Mirai's Stones dp, implementation, sortings	1200	x39450
433A	Kitahara Haruki's Gift brute force, implementation	1100	x16334
432E	Square Tiling constructive algorithms, greedy	2300	x691
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x9067
432C	Prime Swaps greedy, sortings	1800	x2517
432B	Football Kit brute force, greedy, implementation	1200	x11662
432A	Choosing Teams greedy, implementation, sortings	800	x59498
431E	Chemistry Experiment binary search, data structures, ternary search	2200	x1002
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2316
431C	k-Tree dp, implementation, trees	1600	x25576
431B	Shower Line brute force, implementation	1200	x10794
431A	Black Square implementation	800	x54693
430B	Balls Game brute force, two pointers	1400	x3713
430A	Points and Segments (easy) constructive algorithms, sortings	1600	x2239
429E	Points and Segments graphs	3000	x862
429D	Tricky Function data structures, divide and conquer, geometry	2200	x2916
429C	Guess the Tree bitmasks, constructive algorithms, dp, greedy, trees	2300	x946
429B	Working out dp	1600	x8664
429A	Xor-tree dfs and similar, trees	1300	x10319
427E	Police Patrol greedy, implementation, math, ternary search	2000	x1428
427D	Match & Catch dp, string suffix structures, strings	2200	x2196
427C	Checkposts dfs and similar, graphs, two pointers	1700	x13929
427B	Prison Transfer data structures, implementation	1100	x13952
427A	Police Recruits implementation	800	x77887
426B	Sereja and Mirroring implementation	1300	x3795
426A	Sereja and Mugs implementation	800	x9183
425E	Sereja and Sets dp	2500	x645
425D	Sereja and Squares binary search, data structures, hashing	2300	x1434
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	x5346
424B	Megacity binary search, greedy, implementation, sortings	1200	x7520
424A	Squats implementation	900	x8407