Problemset - Codeforces

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Before contest
Codeforces Round (Div. 1)
6 days

Before contest
Codeforces Round (Div. 2)
6 days

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Problems

#	Name
392E	Deleting Substrings		x181
392D	Three Arrays data structures		x221
392C	Yet Another Number Sequence combinatorics, math, matrices		x605
392B	Tower of Hanoi dp		x967
392A	Blocked Points math		x980
391F3	Stock Trading		x109
391F2	Stock Trading greedy		x110
391F1	Stock Trading dp		x191
391E2	Three Trees		x169
391E1	Three Trees		x122
391D2	Supercollider data structures		x199
391D1	Supercollider brute force		x215
391C3	The Tournament		x172
391C2	The Tournament greedy		x139
391C1	The Tournament brute force		x190
391B	Word Folding brute force		x398
391A	Genetic Engineering implementation, two pointers		x1728
390E	Inna and Large Sweet Matrix		x262
390D	Inna and Sweet Matrix constructive algorithms		x520
390C	Inna and Candy Boxes data structures		x629
390B	Inna, Dima and Song implementation		x1181
390A	Inna and Alarm Clock implementation		x3610
389B	Fox and Cross greedy, implementation	1100	x7067
389A	Fox and Number Game greedy, math	1000	x14303
388E	Fox and Meteor Shower geometry	3100	x124
388D	Fox and Perfect Sets math	2700	x460
388C	Fox and Card Game games, greedy, sortings	2000	x3510
388B	Fox and Minimal path bitmasks, constructive algorithms, graphs, implementation, math	1900	x2499
388A	Fox and Box Accumulation greedy, sortings	1400	x11576
387E	George and Cards binary search, data structures	2200	x925
387D	George and Interesting Graph graph matchings	2200	x1050
387C	George and Number greedy, implementation	1700	x2225
387B	George and Round brute force, greedy, two pointers	1200	x12432
387A	George and Sleep implementation	900	x9879
386D	Game with Points dp, graphs, implementation, shortest paths	2100	x467
386C	Diverse Substrings dp, strings, two pointers	2000	x833
386B	Fly, freebies, fly! binary search, brute force, implementation	1400	x2217
386A	Second-Price Auction implementation	800	x6783
385E	Bear in the Field math, matrices	2300	x598
385D	Bear and Floodlight bitmasks, dp, geometry	2200	x823
385C	Bear and Prime Numbers binary search, brute force, data structures, dp, implementation, math, number theory	1700	x9872
385B	Bear and Strings brute force, greedy, implementation, math, strings	1200	x10137
385A	Bear and Raspberry brute force, greedy, implementation	1000	x16718
384B	Multitasking greedy, implementation, sortings, two pointers	1500	x3601
384A	Coder implementation	800	x16575
383E	Vowels combinatorics, divide and conquer, dp	2700	x3311
383D	Antimatter dp	2300	x3098
383C	Propagating tree data structures, dfs and similar, trees	2000	x6710
383B	Volcanoes binary search, implementation, sortings, two pointers	2500	x725
383A	Milking cows data structures, greedy	1600	x5337
382E	Ksenia and Combinatorics combinatorics, dp	2600	x388
382D	Ksenia and Pawns dfs and similar, graphs, implementation, trees	2200	x693
382C	Arithmetic Progression implementation, sortings	1700	x8385
382B	Number Busters binary search, math	2000	x1442
382A	Ksenia and Pan Scales greedy, implementation	1100	x12768
381B	Sereja and Stairs greedy, implementation, sortings	1100	x6914
381A	Sereja and Dima greedy, implementation, two pointers	800	x71383
380E	Sereja and Dividing data structures	2600	x311
380D	Sereja and Cinema combinatorics, math	2500	x480
380C	Sereja and Brackets data structures, schedules	2000	x16051
380B	Sereja and Tree graphs, implementation	2400	x540
380A	Sereja and Prefixes binary search, brute force	1600	x2722
379G	New Year Cactus dp	3100	x146
379F	New Year Tree data structures, divide and conquer, trees	2400	x2436
379E	New Year Tree Decorations geometry, schedules, sortings	2500	x362
379D	New Year Letter bitmasks, brute force, dp	2000	x1602
379C	New Year Ratings Change greedy, sortings	1400	x6753
379B	New Year Present constructive algorithms, implementation	1200	x7452
379A	New Year Candles implementation	1000	x48281
378B	Semifinals implementation, sortings	1300	x5364
378A	Playing with Dice brute force	800	x24565
377E	Cookie Clicker dp, geometry	2800	x485
377D	Developing Game data structures	2400	x1219
377C	Captains Mode bitmasks, dp, games	2200	x1168
377B	Preparing for the Contest binary search, data structures, greedy, sortings	1900	x2143
377A	Maze dfs and similar	1600	x23438
376B	I.O.U. implementation	1300	x6514
376A	Lever implementation, math	900	x9485
375E	Red and Black Tree dp, implementation, math	3000	x427
375D	Tree and Queries data structures, dfs and similar, trees	2400	x7222
375C	Circling Round Treasures bitmasks, shortest paths	2600	x574
375B	Maximum Submatrix 2 data structures, dp, implementation, sortings	1600	x5120
375A	Divisible by Seven math, number theory	1600	x4991
374E	Inna and Babies binary search, data structures, dsu, geometry, implementation	2600	x187
374D	Inna and Sequence binary search, data structures, dp, trees	2000	x903
374C	Inna and Dima dfs and similar, dp, graphs, implementation	1900	x2786
374B	Inna and Nine combinatorics, greedy	1500	x3349
374A	Inna and Pink Pony greedy, implementation	2000	x2993
373B	Making Sequences is Fun binary search, implementation, math	1600	x2513
373A	Collecting Beats is Fun implementation	900	x10843
372E	Drawing Circles is Fun combinatorics, geometry	3000	x180
372D	Choosing Subtree is Fun binary search, data structures, dfs and similar, trees, two pointers	2600	x1003
372C	Watching Fireworks is Fun data structures, dp, math	2100	x4328
372B	Counting Rectangles is Fun brute force, divide and conquer, dp	1900	x2674
372A	Counting Kangaroos is Fun binary search, greedy, sortings, two pointers	1600	x13501
371E	Subway Innovation greedy, math, two pointers	2000	x1326
371D	Vessels data structures, dsu, implementation, trees	1800	x5820
371C	Hamburgers binary search, brute force	1600	x28120
371B	Fox Dividing Cheese math, number theory	1300	x11705
371A	K-Periodic Array greedy, implementation, math	1000	x6226