Problemset - Codeforces

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Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)
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Problems

#	Name
292C	Beautiful IP Addresses brute force	2000	x1021
291E	Tree-String Problem *special problem, dfs and similar, hashing, strings	2000	x1286
290F	Greedy Petya *special problem, dfs and similar, graphs, greedy	2800	x130
290E	HQ *special problem, constructive algorithms	2500	x198
290C	WTF? *special problem, graph matchings, implementation, trees	1700	x1529
288E	Polo the Penguin and Lucky Numbers dp, implementation, math	2800	x288
288D	Polo the Penguin and Trees combinatorics, dfs and similar, trees	2400	x683
288C	Polo the Penguin and XOR operation implementation, math	1700	x2267
287B	Pipeline binary search, math	1700	x9264
286E	Ladies' Shop constructive algorithms, fft, math	2800	x825
286D	Tourists data structures, sortings	2600	x373
286C	Main Sequence greedy, implementation	2100	x1478
286B	Shifting implementation	2200	x1110
285E	Positions in Permutations combinatorics, dp, math	2600	x963
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1512
283E	Cow Tennis Tournament combinatorics, data structures, math	2800	x727
283D	Cows and Cool Sequences dp, math, number theory	2400	x529
283C	Coin Troubles dp	2100	x1418
283B	Cow Program dfs and similar, dp, graphs	1700	x3626
282E	Sausage Maximization bitmasks, data structures, trees	2200	x3505
282D	Yet Another Number Game dp, games	2100	x1395
281B	Nearest Fraction brute force, implementation, two pointers	1700	x2951
280E	Sequence Transformation brute force, data structures, dp, implementation, math	3000	x203
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x1237
280C	Game on Tree implementation, math, probabilities, trees	2200	x3726
280B	Maximum Xor Secondary data structures, implementation, two pointers	1800	x4479
280A	Rectangle Puzzle geometry	2000	x1452
279E	Beautiful Decomposition dp, games, greedy, number theory	1900	x1419
279D	The Minimum Number of Variables bitmasks, dp	2200	x716
279C	Ladder dp, implementation, two pointers	1700	x8138
277E	Binary Tree on Plane flows, trees	2400	x1251
277D	Google Code Jam dp, probabilities	2800	x331
277C	Game games, implementation	2400	x448
277B	Set of Points constructive algorithms, geometry	2300	x787
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1572
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13397
275B	Convex Shape constructive algorithms, implementation	1700	x2799
274E	Mirror Room data structures, implementation	3000	x306
274D	Lovely Matrix dfs and similar, graphs, greedy, sortings	2200	x1016
274C	The Last Hole! brute force, geometry	2600	x348
274B	Zero Tree dfs and similar, dp, greedy, trees	1800	x4935
273E	Dima and Game dp, games	2600	x363
273D	Dima and Figure dp	2400	x390
272E	Dima and Horses combinatorics, constructive algorithms, graphs	2200	x1180
271E	Three Horses constructive algorithms, math, number theory	2200	x481
271D	Good Substrings data structures, strings	1800	x10750
269E	String Theory geometry, math, strings	3100	x108
269D	Maximum Waterfall data structures, dp, graphs, sortings	2600	x446
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1626
269B	Greenhouse Effect dp	1700	x6213
268E	Playlist math, probabilities, sortings	2100	x981
268D	Wall Bars dp	2300	x503
267C	Berland Traffic math, matrices	2700	x160
267B	Dominoes dfs and similar, graphs	2000	x621
266E	More Queries to Array... data structures, math	2500	x771
266D	BerDonalds graphs, math, shortest paths	2400	x759
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1340
264E	Roadside Trees data structures, dp	3000	x427
264D	Colorful Stones dp, two pointers	2500	x411
264C	Choosing Balls dp	2000	x2805
263E	Rhombus brute force, data structures, dp	2500	x397
263D	Cycle in Graph dfs and similar, graphs	1800	x3390
263C	Circle of Numbers brute force, dfs and similar, implementation	2000	x1063
261E	Maxim and Calculator brute force, dp, two pointers	2800	x406
261D	Maxim and Increasing Subsequence dp	2600	x556
261C	Maxim and Matrix constructive algorithms, dp, math	2000	x765
261B	Maxim and Restaurant dp, math, probabilities	1900	x1377
260E	Dividing Kingdom binary search, brute force, data structures	2500	x453
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1519
260C	Balls and Boxes constructive algorithms, greedy, implementation	1700	x2942
258E	Little Elephant and Tree data structures, dfs and similar, trees	2400	x1074
258D	Little Elephant and Broken Sorting dp, math, probabilities	2600	x1228
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x1768
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1429
257E	Greedy Elevator data structures, implementation	2200	x281
257D	Sum greedy, math	1900	x1560
257C	View Angle brute force, geometry, math	1800	x4242
256E	Lucky Arrays data structures	2400	x659
256D	Liars and Serge dp	2700	x256
255E	Furlo and Rublo and Game games, implementation, math	2200	x836
255D	Mr. Bender and Square binary search, implementation, math	1800	x1939
254E	Dormitory dp, implementation	2100	x661
254D	Rats brute force, dfs and similar, graphs, implementation, shortest paths	2300	x527
254C	Anagram greedy, strings	1800	x1480
253E	Printer binary search, data structures, implementation, sortings	2200	x525
253D	Table with Letters - 2 brute force, two pointers	2000	x824
252B	Unsorting Array brute force, sortings	1800	x1701
251E	Tree and Table dfs and similar, dp, implementation, trees	3000	x169
251D	Two Sets bitmasks, math	2700	x466
251C	Number Transformation dp, greedy, number theory	2000	x1013
251B	Playing with Permutations implementation, math	1800	x1260
250E	Mad Joe brute force	2000	x456
250D	Building Bridge geometry, ternary search, two pointers	1900	x882
249E	Endless Matrix math	2600	x290
249D	Donkey and Stars data structures, dp, geometry, math, sortings	2700	x448
248E	Piglet's Birthday dp, math, probabilities	2600	x570
248D	Sweets for Everyone! binary search, greedy, implementation	2300	x487
248C	Robo-Footballer binary search, geometry	2000	x804
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x3059
245H	Queries for Number of Palindromes dp, hashing, strings	1800	x6279