Problemset - Codeforces

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Codeforces Round (Div. 2)
7 days

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Problems

#	Name
286E	Ladies' Shop constructive algorithms, fft, math	2800	x832
286D	Tourists data structures, sortings	2600	x378
286C	Main Sequence greedy, implementation	2100	x1503
286B	Shifting implementation	2200	x1117
286A	Lucky Permutation constructive algorithms, math	1400	x3172
285E	Positions in Permutations combinatorics, dp, math	2600	x992
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1546
285C	Building Permutation greedy, implementation, sortings	1200	x23224
285B	Find Marble implementation	1200	x15017
285A	Slightly Decreasing Permutations greedy, implementation	1100	x13341
284B	Cows and Poker Game brute force, implementation	1000	x6786
284A	Cows and Primitive Roots implementation, math, number theory	1400	x6569
283E	Cow Tennis Tournament combinatorics, data structures, math	2800	x768
283D	Cows and Cool Sequences dp, math, number theory	2400	x532
283C	Coin Troubles dp	2100	x1436
283B	Cow Program dfs and similar, dp, graphs	1700	x3663
283A	Cows and Sequence constructive algorithms, data structures, implementation	1600	x6559
282E	Sausage Maximization bitmasks, data structures, trees	2200	x3584
282D	Yet Another Number Game dp, games	2100	x1430
282C	XOR and OR constructive algorithms, implementation, math	1500	x9386
282B	Painting Eggs greedy, math	1500	x12941
282A	Bit++ implementation	800	x259995
281B	Nearest Fraction brute force, implementation, two pointers	1700	x3031
281A	Word Capitalization implementation, strings	800	x210544
280E	Sequence Transformation brute force, data structures, dp, implementation, math	3000	x206
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x1287
280C	Game on Tree implementation, math, probabilities, trees	2200	x4010
280B	Maximum Xor Secondary data structures, implementation, two pointers	1800	x4664
280A	Rectangle Puzzle geometry	2000	x1467
279E	Beautiful Decomposition dp, games, greedy, number theory	1900	x1444
279D	The Minimum Number of Variables bitmasks, dp	2200	x730
279C	Ladder dp, implementation, two pointers	1700	x8237
279B	Books binary search, brute force, implementation, two pointers	1400	x52607
279A	Point on Spiral brute force, geometry, implementation	1400	x5592
278B	New Problem brute force, strings	1500	x3454
278A	Circle Line implementation	800	x11663
277E	Binary Tree on Plane flows, trees	2400	x1283
277D	Google Code Jam dp, probabilities	2800	x336
277C	Game games, implementation	2400	x452
277B	Set of Points constructive algorithms, geometry	2300	x808
277A	Learning Languages dfs and similar, dsu	1400	x18840
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1599
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13769
276C	Little Girl and Maximum Sum data structures, greedy, implementation, sortings	1500	x26432
276B	Little Girl and Game games, greedy	1300	x28494
276A	Lunch Rush implementation	900	x27615
275B	Convex Shape constructive algorithms, implementation	1700	x2826
275A	Lights Out implementation	900	x30073
274E	Mirror Room data structures, implementation	3000	x313
274D	Lovely Matrix dfs and similar, graphs, greedy, sortings	2200	x1030
274C	The Last Hole! brute force, geometry	2600	x350
274B	Zero Tree dfs and similar, dp, greedy, trees	1800	x5004
274A	k-Multiple Free Set binary search, greedy, sortings	1500	x10031
273E	Dima and Game dp, games	2600	x366
273D	Dima and Figure dp	2400	x413
272E	Dima and Horses combinatorics, constructive algorithms, graphs	2200	x1219
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2625
272C	Dima and Staircase data structures, implementation	1500	x6779
272B	Dima and Sequence implementation, math	1400	x4020
272A	Dima and Friends implementation, math	1000	x24518
271E	Three Horses constructive algorithms, math, number theory	2200	x500
271D	Good Substrings data structures, strings	1800	x11283
271C	Secret constructive algorithms, implementation	1500	x2989
271B	Prime Matrix binary search, brute force, math, number theory	1300	x13033
271A	Beautiful Year brute force	800	x137311
270B	Multithreading data structures, greedy, implementation	1400	x4131
270A	Fancy Fence geometry, implementation, math	1100	x45323
269E	String Theory geometry, math, strings	3100	x108
269D	Maximum Waterfall data structures, dp, graphs, sortings	2600	x449
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1679
269B	Greenhouse Effect dp	1700	x6292
269A	Magical Boxes greedy, math	1600	x3522
268E	Playlist math, probabilities, sortings	2100	x991
268D	Wall Bars dp	2300	x508
268C	Beautiful Sets of Points constructive algorithms, implementation	1500	x13636
268B	Buttons implementation, math	1000	x32298
268A	Games brute force	800	x86106
267C	Berland Traffic math, matrices	2700	x161
267B	Dominoes dfs and similar, graphs	2000	x637
267A	Subtractions math, number theory	900	x7471
266E	More Queries to Array... data structures, math	2500	x920
266D	BerDonalds graphs, math, shortest paths	2400	x894
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1351
266B	Queue at the School constructive algorithms, graph matchings, implementation, shortest paths	800	x134481
266A	Stones on the Table implementation	800	x190105
265B	Roadside Trees (Simplified Edition) greedy, implementation	1000	x17209
265A	Colorful Stones (Simplified Edition) implementation	800	x36652
264E	Roadside Trees data structures, dp	3000	x428
264D	Colorful Stones dp, two pointers	2500	x419
264C	Choosing Balls dp	2000	x2922
264B	Good Sequences dp, number theory	1500	x10155
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x10756
263E	Rhombus brute force, data structures, dp	2500	x401
263D	Cycle in Graph dfs and similar, graphs	1800	x3599
263C	Circle of Numbers brute force, dfs and similar, implementation	2000	x1078
263B	Squares greedy, implementation, sortings	900	x8896
263A	Beautiful Matrix implementation	800	x243119
262B	Roma and Changing Signs greedy	1200	x11358
262A	Roma and Lucky Numbers implementation	800	x19875
261E	Maxim and Calculator brute force, dp, two pointers	2800	x413