Problemset - Codeforces

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

#	Name
429E	Points and Segments graphs	3000	x839
429D	Tricky Function data structures, divide and conquer, geometry	2200	x2692
429C	Guess the Tree bitmasks, constructive algorithms, dp, greedy, trees	2300	x933
427E	Police Patrol greedy, implementation, math, ternary search	2000	x1411
427D	Match & Catch dp, string suffix structures, strings	2200	x2129
427C	Checkposts dfs and similar, graphs, two pointers	1700	x13479
425E	Sereja and Sets dp	2500	x596
425D	Sereja and Squares binary search, data structures, hashing	2300	x1416
425C	Sereja and Two Sequences data structures, dp	2300	x886
425B	Sereja and Table bitmasks, greedy	2200	x1284
424E	Colored Jenga dfs and similar, dp, probabilities	2500	x130
424D	Biathlon Track binary search, brute force, constructive algorithms, data structures, dp	2300	x558
421D	Bug in Code binary search, data structures, sortings	1900	x515
420E	Playing the ball geometry	2600	x214
420D	Cup Trick data structures	2200	x782
420C	Bug in Code data structures, graphs, implementation, two pointers	1900	x1238
420B	Online Meeting implementation	1800	x1012
418E	Tricky Password data structures	3100	x300
418D	Big Problems for Organizers data structures, graphs, trees	2800	x474
417E	Square Table constructive algorithms, math, probabilities	2400	x787
417D	Cunning Gena bitmasks, dp, greedy, sortings	1900	x2420
416E	President's Path dp, graphs, shortest paths	2500	x1399
416D	Population Size greedy, implementation, math	2400	x936
414E	Mashmokh's Designed Problem data structures	3200	x200
414D	Mashmokh and Water Tanks binary search, data structures, greedy, trees, two pointers	2300	x676
414C	Mashmokh and Reverse Operation combinatorics, divide and conquer	2100	x2185
413E	Maze 2D data structures, divide and conquer	2200	x678
413D	2048 bitmasks, dp	2000	x779
412E	E-mail Addresses implementation	1900	x830
412D	Giving Awards dfs and similar	2000	x1827
411C	Kicker implementation	1700	x1219
409I	Feed the Golorp *special problem	2400	x118
409G	On a plane *special problem, geometry	2200	x507
409F	000001 *special problem	1900	x2059
409E	Dome *special problem	1800	x564
409D	Big Data *special problem	1700	x1702
409C	Magnum Opus *special problem	1700	x1961
409B	Mysterious Language *special problem	1700	x1350
409A	The Great Game *special problem	1700	x2449
407E	k-d-sequence data structures	3100	x697
407D	Largest Submatrix 3 dp, hashing	2700	x555
407C	Curious Array brute force, combinatorics, implementation, math	2500	x962
406E	Hamming Triples implementation, math, two pointers	2800	x232
406D	Hill Climbing dfs and similar, geometry, trees	2200	x1142
405E	Graph Cutting dfs and similar, graphs	2300	x1353
405D	Toy Sum greedy, implementation, math	1700	x3101
404E	Maze 1D binary search, greedy, implementation	2200	x571
404D	Minesweeper 1D dp, implementation	1900	x2094
404C	Restore Graph dfs and similar, graphs, sortings	1800	x5094
403E	Two Rooted Trees data structures, implementation, trees	2900	x203
403D	Beautiful Pairs of Numbers combinatorics, dp	2300	x1077
402E	Strictly Positive Matrix graphs, math	2200	x2141
402D	Upgrading Array dp, greedy, math, number theory	1800	x2537
401E	Olympic Games math	2500	x168
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x4066
400E	Inna and Binary Logic binary search, bitmasks, data structures	2100	x938
400D	Dima and Bacteria dsu, graphs, shortest paths	2000	x2835
388E	Fox and Meteor Shower geometry	3100	x120
388D	Fox and Perfect Sets math	2700	x441
388C	Fox and Card Game games, greedy, sortings	2000	x3159
388B	Fox and Minimal path bitmasks, constructive algorithms, graphs, implementation, math	1900	x2457
387E	George and Cards binary search, data structures	2200	x866
387D	George and Interesting Graph graph matchings	2200	x971
387C	George and Number greedy, implementation	1700	x2174
386D	Game with Points dp, graphs, implementation, shortest paths	2100	x419
386C	Diverse Substrings dp, strings, two pointers	2000	x758
385E	Bear in the Field math, matrices	2300	x565
385D	Bear and Floodlight bitmasks, dp, geometry	2200	x802
385C	Bear and Prime Numbers binary search, brute force, data structures, dp, implementation, math, number theory	1700	x9504
383E	Vowels combinatorics, divide and conquer, dp	2700	x2893
383D	Antimatter dp	2300	x2940
383C	Propagating tree data structures, dfs and similar, trees	2000	x6255
383B	Volcanoes binary search, implementation, sortings, two pointers	2500	x659
382E	Ksenia and Combinatorics combinatorics, dp	2600	x370
382D	Ksenia and Pawns dfs and similar, graphs, implementation, trees	2200	x657
382C	Arithmetic Progression implementation, sortings	1700	x8216
382B	Number Busters binary search, math	2000	x1396
380E	Sereja and Dividing data structures	2600	x295
380D	Sereja and Cinema combinatorics, math	2500	x459
380C	Sereja and Brackets data structures, schedules	2000	x14305
380B	Sereja and Tree graphs, implementation	2400	x531
379G	New Year Cactus dp	3100	x141
379F	New Year Tree data structures, divide and conquer, trees	2400	x2194
379E	New Year Tree Decorations geometry, schedules, sortings	2500	x338
379D	New Year Letter bitmasks, brute force, dp	2000	x1524
377E	Cookie Clicker dp, geometry	2800	x447
377D	Developing Game data structures	2400	x1109
377C	Captains Mode bitmasks, dp, games	2200	x1113
377B	Preparing for the Contest binary search, data structures, greedy, sortings	1900	x2001
375E	Red and Black Tree dp, implementation, math	3000	x404
375D	Tree and Queries data structures, dfs and similar, trees	2400	x6408
375C	Circling Round Treasures bitmasks, shortest paths	2600	x477
374E	Inna and Babies binary search, data structures, dsu, geometry, implementation	2600	x179
374D	Inna and Sequence binary search, data structures, dp, trees	2000	x853
374C	Inna and Dima dfs and similar, dp, graphs, implementation	1900	x2698
374A	Inna and Pink Pony greedy, implementation	2000	x2853
372E	Drawing Circles is Fun combinatorics, geometry	3000	x170
372D	Choosing Subtree is Fun binary search, data structures, dfs and similar, trees, two pointers	2600	x954
372C	Watching Fireworks is Fun data structures, dp, math	2100	x3950
372B	Counting Rectangles is Fun brute force, divide and conquer, dp	1900	x2574