Problemset - Codeforces

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Codeforces Round (Div. 2)
4 days
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Problems

#	Name
295E	Yaroslav and Points data structures	2500	x675
295D	Greg and Caves combinatorics, dp	2400	x649
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1697
295B	Greg and Graph dp, graphs, shortest paths	1700	x13968
295A	Greg and Array data structures, implementation	1400	x17738
294E	Shaass the Great dp, trees	2300	x933
294D	Shaass and Painter Robot brute force, implementation, number theory	2500	x361
294C	Shaass and Lights combinatorics, number theory	1900	x3802
294B	Shaass and Bookshelf dp, greedy	1700	x4533
294A	Shaass and Oskols implementation, math	800	x23444
293E	Close Vertices data structures, divide and conquer, trees	2700	x1402
293D	Ksusha and Square geometry, math, probabilities, two pointers	2700	x238
293C	Cube Problem brute force, math, number theory	2400	x568
293B	Distinct Paths brute force, combinatorics	2700	x848
293A	Weird Game games, greedy	1500	x2880
292E	Copying Data data structures	1900	x4120
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2427
292C	Beautiful IP Addresses brute force	2000	x1167
292B	Network Topology graphs, implementation	1200	x8208
292A	SMSC implementation	1100	x2696
291E	Tree-String Problem *special problem, dfs and similar, hashing, strings	2000	x1309
291D	Parallel Programming *special problem, greedy	1600	x1478
291C	Network Mask *special problem, bitmasks, brute force, implementation	1600	x1679
291B	Command Line Arguments *special problem, implementation, strings	1300	x3031
291A	Spyke Talks *special problem, implementation, sortings	800	x6085
290F	Greedy Petya *special problem, dfs and similar, graphs, greedy	2800	x132
290E	HQ *special problem, constructive algorithms	2500	x203
290D	Orange *special problem, implementation	1400	x1801
290C	WTF? *special problem, graph matchings, implementation, trees	1700	x1542
290B	QR code *special problem, implementation	1500	x2436
290A	Mysterious strings *special problem, implementation	1400	x2994
289B	Polo the Penguin and Matrix brute force, dp, implementation, sortings, ternary search	1400	x17254
289A	Polo the Penguin and Segments brute force, implementation	1100	x9221
288E	Polo the Penguin and Lucky Numbers dp, implementation, math	2800	x289
288D	Polo the Penguin and Trees combinatorics, dfs and similar, trees	2400	x753
288C	Polo the Penguin and XOR operation implementation, math	1700	x2289
288B	Polo the Penguin and Houses combinatorics	1500	x2912
288A	Polo the Penguin and Strings greedy	1300	x6491
287B	Pipeline binary search, math	1700	x9671
287A	IQ Test brute force, implementation	1100	x19744
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	x1116
286A	Lucky Permutation constructive algorithms, math	1400	x3164
285E	Positions in Permutations combinatorics, dp, math	2600	x991
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1546
285C	Building Permutation greedy, implementation, sortings	1200	x23197
285B	Find Marble implementation	1200	x15010
285A	Slightly Decreasing Permutations greedy, implementation	1100	x13330
284B	Cows and Poker Game brute force, implementation	1000	x6783
284A	Cows and Primitive Roots implementation, math, number theory	1400	x6561
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	x3662
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	x1429
282C	XOR and OR constructive algorithms, implementation, math	1500	x9380
282B	Painting Eggs greedy, math	1500	x12926
282A	Bit++ implementation	800	x259166
281B	Nearest Fraction brute force, implementation, two pointers	1700	x3031
281A	Word Capitalization implementation, strings	800	x210033
280E	Sequence Transformation brute force, data structures, dp, implementation, math	3000	x205
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x1284
280C	Game on Tree implementation, math, probabilities, trees	2200	x3999
280B	Maximum Xor Secondary data structures, implementation, two pointers	1800	x4616
280A	Rectangle Puzzle geometry	2000	x1467
279E	Beautiful Decomposition dp, games, greedy, number theory	1900	x1443
279D	The Minimum Number of Variables bitmasks, dp	2200	x730
279C	Ladder dp, implementation, two pointers	1700	x8234
279B	Books binary search, brute force, implementation, two pointers	1400	x52451
279A	Point on Spiral brute force, geometry, implementation	1400	x5589
278B	New Problem brute force, strings	1500	x3454
278A	Circle Line implementation	800	x11653
277E	Binary Tree on Plane flows, trees	2400	x1282
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	x18823
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	x13747
276C	Little Girl and Maximum Sum data structures, greedy, implementation, sortings	1500	x26296
276B	Little Girl and Game games, greedy	1300	x28462
276A	Lunch Rush implementation	900	x27586
275B	Convex Shape constructive algorithms, implementation	1700	x2826
275A	Lights Out implementation	900	x30027
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	x5001
274A	k-Multiple Free Set binary search, greedy, sortings	1500	x10030
273E	Dima and Game dp, games	2600	x366
273D	Dima and Figure dp	2400	x412
272E	Dima and Horses combinatorics, constructive algorithms, graphs	2200	x1218
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	x24487