Problemset - Codeforces

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Problems

#	Name
609D	Gadgets for dollars and pounds binary search, greedy, two pointers	2000	x2758
607B	Zuma dp	1900	x12471
601B	Lipshitz Sequence data structures, math	2100	x2333
600D	Area of Two Circles' Intersection geometry	2000	x2324
599D	Spongebob and Squares brute force, math	1900	x2591
598E	Chocolate Bar brute force, dp	2000	x5094
597C	Subsequences data structures, dp	1900	x5087
590B	Chip 'n Dale Rescue Rangers binary search, geometry, math	2100	x1917
587B	Duff in Beach dp	2100	x1425
582B	Once Again... constructive algorithms, dp, matrices	1900	x3449
578C	Weakness and Poorness ternary search	2000	x4513
577B	Modulo Sum combinatorics, data structures, dp, two pointers	1900	x12339
576C	Points on Plane constructive algorithms, divide and conquer, geometry, greedy, sortings	2100	x3483
576B	Invariance of Tree constructive algorithms, dfs and similar, greedy, trees	2100	x1815
575F	Bulbo dp, greedy	2100	x1040
571B	Minimization dp, greedy, sortings	2000	x2657
571A	Lengthening Sticks combinatorics, implementation, math	2100	x2330
568B	Symmetric and Transitive combinatorics, dp, math	1900	x2251
566D	Restructuring Company data structures, dsu	1900	x3296
558C	Amr and Chemistry brute force, graphs, greedy, math, shortest paths	1900	x3996
557D	Vitaly and Cycle combinatorics, dfs and similar, graphs, math	2000	x2213
557C	Arthur and Table brute force, data structures, dp, greedy, math, sortings	1900	x4030
555B	Case of Fugitive data structures, greedy, sortings	2000	x3751
553B	Kyoya and Permutation binary search, combinatorics, constructive algorithms, greedy, implementation, math	1900	x2120
552E	Vanya and Brackets brute force, dp, expression parsing, greedy, implementation, strings	2100	x1630
552D	Vanya and Triangles brute force, combinatorics, data structures, geometry, math, sortings	1900	x4497
552C	Vanya and Scales brute force, dp, greedy, math, meet-in-the-middle, number theory	1900	x5494
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1967
550D	Regular Bridge constructive algorithms, graphs, implementation	1900	x3486
549H	Degenerate Matrix binary search, math	2100	x1994
549D	Haar Features greedy, implementation	1900	x2141
547B	Mike and Feet binary search, data structures, dp, dsu	1900	x8832
546E	Soldier and Traveling flows, graphs, math	2100	x3679
545E	Paths and Trees graphs, greedy, shortest paths	2000	x4688
543B	Destroying Roads constructive algorithms, graphs, shortest paths	2100	x4138
542F	Quest dp, greedy	2100	x927
542C	Idempotent functions constructive algorithms, graphs, math	2000	x1135
540E	Infinite Inversions binary search, data structures, implementation, sortings, trees	2100	x2137
540D	Bad Luck Island dp, probabilities	1900	x5531
540C	Ice Cave dfs and similar	2000	x7354
535D	Tavas and Malekas greedy, hashing, string suffix structures, strings	1900	x3961
535C	Tavas and Karafs binary search, greedy, math	1900	x3800
534D	Handshakes binary search, constructive algorithms, data structures, greedy	1900	x2419
533B	Work Group dfs and similar, dp, graphs, strings, trees	2000	x2438
530H	Points in triangle *special problem, geometry	2100	x123
530G	Levenshtein distance *special problem	2100	x159
530F	Jumping frogs *special problem	2100	x107
529B	Group Photo 2 (online mirror version) brute force, greedy, sortings	1900	x876
526C	Om Nom and Candies brute force, greedy, math	2000	x2525
525E	Anya and Cubes binary search, bitmasks, brute force, dp, math, meet-in-the-middle	2100	x3321
524D	Social Network greedy, two pointers	2100	x956
524C	The Art of Dealing with ATM binary search, sortings	1900	x2058
522D	Closest Equals *special problem, data structures	2000	x3246
522C	Chicken or Fish? greedy	2100	x722
520D	Cubes games, greedy, implementation	2100	x1566
519E	A and B and Lecture Rooms binary search, data structures, dfs and similar, dp, trees	2100	x6955
515D	Drazil and Tiles constructive algorithms, greedy	2000	x2867
514D	R2D2 and Droid Army binary search, data structures, two pointers	2000	x4488
514C	Watto and Mechanism binary search, data structures, hashing, string suffix structures, strings	2000	x6963
513C	Second price auction bitmasks, probabilities	2000	x1563
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5647
509E	Pretty Song math, strings	2000	x1802
509C	Sums of Digits dp, greedy, implementation	2000	x2102
507E	Breaking Good dfs and similar, dp, graphs, shortest paths	2100	x2923
505C	Mr. Kitayuta, the Treasure Hunter dfs and similar, dp, two pointers	1900	x6428
501D	Misha and Permutations Summation data structures	2000	x2425
500D	New Year Santa Network combinatorics, dfs and similar, graphs, trees	1900	x3128
498C	Array and Operations flows, graph matchings, number theory	2100	x3494
496E	Distributing Parts greedy, sortings	2100	x1664
496D	Tennis Game binary search	1900	x3025
494B	Obsessive String dp, strings	2000	x2749
492E	Vanya and Field math	2000	x1631
491B	New York Hotel greedy, math	2100	x568
490E	Restoring Increasing Sequence binary search, brute force, greedy, implementation	2000	x1604
490D	Chocolate brute force, dfs and similar, math, meet-in-the-middle, number theory	1900	x2144
489F	Special Matrices combinatorics, dp	2100	x1673
488B	Candy Boxes brute force, constructive algorithms, math	1900	x2126
487B	Strip binary search, data structures, dp, two pointers	2000	x3558
486D	Valid Sets dfs and similar, dp, math, trees	2100	x4051
484B	Maximum Value binary search, math, sortings, two pointers	2100	x7078
479E	Riding in a Lift combinatorics, dp	1900	x5170
478D	Red-Green Towers dp	2000	x6056
476D	Dreamoon and Sets constructive algorithms, greedy, math	1900	x4693
475D	CGCDSSQ brute force, data structures, math	2000	x4989
475C	Kamal-ol-molk's Painting brute force, constructive algorithms, greedy	2100	x786
474F	Ant colony data structures, math, number theory	2100	x8834
474E	Pillars binary search, data structures, dp, sortings, trees	2000	x3402
474C	Captain Marmot brute force, geometry	2000	x3131
472D	Design Tutorial: Inverse the Problem dfs and similar, dsu, shortest paths, trees	1900	x5449
470E	Chessboard *special problem	1900	x198
470D	Caesar Cipher *special problem	1900	x153
470C	Eval *special problem	1900	x255
468B	Two Sets 2-sat, dfs and similar, dsu, graph matchings, greedy	2000	x4255
466E	Information Graph dfs and similar, dsu, graphs, trees	2100	x2246
466D	Increase Sequence combinatorics, dp	2100	x3233
466B	Wonder Room brute force, math	2000	x4930
464C	Substitutes in Number dp	2100	x1854
464B	Restore Cube brute force, geometry	2000	x1712
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1617
463D	Gargari and Permutations dfs and similar, dp, graphs, implementation	1900	x6560