Problemset - Codeforces

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

#	Name
470B	Hexakosioihexekontahexaphobia *special problem	1800	x256
468E	Permanent dp, graph matchings, math, meet-in-the-middle	3100	x312
468D	Tree graph matchings	3100	x359
468C	Hack it! binary search, constructive algorithms, math	2500	x2313
468B	Two Sets 2-sat, dfs and similar, dsu, graph matchings, greedy	2000	x4039
467E	Alex and Complicated Task data structures, dp, greedy	2300	x770
467D	Fedor and Essay dfs and similar, dp, graphs, hashing, strings	2400	x1784
467C	George and Job dp, implementation	1700	x14324
466E	Information Graph dfs and similar, dsu, graphs, trees	2100	x2125
466D	Increase Sequence combinatorics, dp	2100	x3091
466C	Number of Ways binary search, brute force, data structures, dp, two pointers	1700	x35244
466B	Wonder Room brute force, math	2000	x4838
464E	The Classic Problem data structures, graphs, shortest paths	3000	x1389
464D	World of Darkraft - 2 dp, probabilities	2700	x662
464C	Substitutes in Number dp	2100	x1842
464B	Restore Cube brute force, geometry	2000	x1670
464A	No to Palindromes! greedy, strings	1700	x5839
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1581
463D	Gargari and Permutations dfs and similar, dp, graphs, implementation	1900	x6177
463C	Gargari and Bishops greedy, hashing, implementation	1900	x8634
461E	Appleman and a Game binary search, shortest paths, strings	3000	x370
461D	Appleman and Complicated Task dsu, math	2800	x361
461C	Appleman and a Sheet of Paper data structures, implementation	2200	x1313
461B	Appleman and Tree dfs and similar, dp, trees	2000	x5443
460E	Roland and Rose brute force, geometry, math, sortings	2700	x340
460D	Little Victor and Set brute force, constructive algorithms, math	2300	x988
460C	Present binary search, data structures, greedy	1700	x6113
459E	Pashmak and Graph dp, sortings	1900	x5309
459D	Pashmak and Parmida's problem data structures, divide and conquer, sortings	1800	x9797
459C	Pashmak and Buses combinatorics, constructive algorithms, math	1900	x6124
457F	An easy problem about trees dp, games, greedy, trees	3200	x105
457E	Flow Optimality constructive algorithms, flows, math	3000	x95
457D	Bingo! combinatorics, math, probabilities	2700	x274
457C	Elections brute force	2100	x874
457B	Distributed Join greedy	1900	x1127
457A	Golden System math, meet-in-the-middle	1700	x1267
455E	Function data structures	2900	x666
455D	Serega and Fun data structures	2700	x2858
455C	Civilization dfs and similar, dp, dsu, ternary search, trees	2100	x5574
455B	A Lot of Games dfs and similar, dp, games, implementation, strings, trees	1900	x5781
453E	Little Pony and Lord Tirek data structures	3100	x685
453D	Little Pony and Elements of Harmony dp, matrices	3000	x462
453C	Little Pony and Summer Sun Celebration constructive algorithms, dfs and similar, graphs	2200	x1585
453B	Little Pony and Harmony Chest bitmasks, brute force, dp	2000	x4605
452F	Permutation data structures, divide and conquer, hashing	2700	x1418
452E	Three strings data structures, dsu, string suffix structures, strings	2400	x1050
452D	Washer, Dryer, Folder greedy, implementation	1900	x1476
452C	Magic Trick combinatorics, math, probabilities	2100	x1606
452B	4-point polyline brute force, constructive algorithms, geometry, trees	1800	x1988
451E	Devu and Flowers bitmasks, combinatorics, number theory	2300	x3473
451D	Count Good Substrings math	2000	x4673
451C	Predict Outcome of the Game brute force, implementation, math	1700	x3312
449E	Jzzhu and Squares dp, math, number theory	2900	x285
449D	Jzzhu and Numbers bitmasks, combinatorics, dp	2400	x4224
449C	Jzzhu and Apples constructive algorithms, number theory	2500	x2226
449B	Jzzhu and Cities graphs, greedy, shortest paths	2000	x8273
449A	Jzzhu and Chocolate greedy, math	1700	x3880
448E	Divisors brute force, dfs and similar, implementation, number theory	2200	x1470
448D	Multiplication Table binary search, brute force	1800	x13598
448C	Painting Fence divide and conquer, dp, greedy	1900	x7950
446E	DZY Loves Bridges math, matrices	3100	x122
446D	DZY Loves Games math, matrices, probabilities	2800	x387
446C	DZY Loves Fibonacci Numbers data structures, math, number theory	2400	x3233
446B	DZY Loves Modification brute force, data structures, greedy	2000	x3557
444E	DZY Loves Planting binary search, dsu, trees	2700	x749
444D	DZY Loves Strings binary search, hashing, strings, two pointers	2500	x759
444C	DZY Loves Colors data structures	2400	x2847
444B	DZY Loves FFT probabilities	2300	x1056
442E	Gena and Second Distance geometry	3100	x171
442D	Adam and Tree data structures, trees	2600	x967
442C	Artem and Array data structures, greedy	2500	x1709
442B	Andrey and Problem greedy, math, probabilities	1800	x5187
442A	Borya and Hanabi bitmasks, brute force, implementation	1700	x2099
441E	Valera and Number bitmasks, dp, math, probabilities	2400	x683
441D	Valera and Swaps constructive algorithms, dsu, graphs, implementation, math, string suffix structures	2100	x1073
440D	Berland Federalization dp, trees	2200	x646
440C	One-Based Arithmetic brute force, dfs and similar, divide and conquer	1800	x899
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1511
439D	Devu and his Brother binary search, sortings, ternary search, two pointers	1700	x5912
439C	Devu and Partitioning of the Array brute force, constructive algorithms, implementation, number theory	1700	x3817
438E	The Child and Binary Tree combinatorics, divide and conquer, fft, number theory	3100	x1831
438D	The Child and Sequence data structures, math	2300	x8101
437E	The Child and Polygon dp, geometry	2500	x697
437D	The Child and Zoo dsu, sortings	1900	x3332
436F	Banners brute force, data structures, dp	3000	x373
436E	Cardboard Box data structures, greedy	2600	x1290
436D	Pudding Monsters dp	2800	x323
436C	Dungeons and Candies dsu, graphs, greedy, trees	1800	x2600
435E	Special Graph	2500	x236
435D	Special Grid brute force, dp, greedy	2000	x748
434E	Furukawa Nagisa's Tree binary search, divide and conquer, sortings, trees	3000	x257
434D	Nanami's Power Plant flows	2900	x405
433E	Tachibana Kanade's Tofu dp	2500	x474
433D	Nanami's Digital Board dsu, implementation	2000	x1091
433C	Ryouko's Memory Note implementation, math, sortings	1800	x2416
432E	Square Tiling constructive algorithms, greedy	2300	x683
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x8601
432C	Prime Swaps greedy, sortings	1800	x2452
431E	Chemistry Experiment binary search, data structures, ternary search	2200	x916
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2288