Problemset - Codeforces

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Problems

#	Name
713E	Sonya Partymaker binary search, dp	3300	x350
713D	Animals and Puzzle binary search, data structures	2700	x1139
713C	Sonya and Problem Wihtout a Legend dp, sortings	2300	x5301
713B	Searching Rectangles binary search, constructive algorithms, interactive	2200	x1451
713A	Sonya and Queries data structures, implementation	1400	x8461
712E	Memory and Casinos data structures, math, probabilities	2500	x613
712D	Memory and Scores combinatorics, dp, math	2200	x1833
712C	Memory and De-Evolution greedy, math	1600	x5777
711E	ZS and The Birthday Paradox math, number theory, probabilities	2300	x1270
711D	Directed Roads combinatorics, dfs and similar, graphs, math	1900	x4452
711C	Coloring Trees dp	1700	x8108
711B	Chris and Magic Square constructive algorithms, implementation	1400	x8416
710F	String Set Queries brute force, data structures, hashing, interactive, string suffix structures, strings	2400	x1875
710E	Generate a String dfs and similar, dp	2000	x5185
710D	Two Arithmetic Progressions math, number theory	2500	x1300
710C	Magic Odd Square constructive algorithms, math	1500	x5096
710B	Optimal Point on a Line brute force, sortings	1400	x8742
709B	Checkpoints greedy, implementation, sortings	1500	x4731
708E	Student's Camp dp, math	3100	x974
708D	Incorrect Flow flows	2900	x759
708C	Centroids data structures, dfs and similar, dp, graphs, greedy, trees	2300	x3275
708B	Recover the String constructive algorithms, greedy, implementation, math	1900	x3242
707E	Garlands data structures	2400	x1215
707D	Persistent Bookcase bitmasks, data structures, dfs and similar, implementation	2200	x2654
707C	Pythagorean Triples math, number theory	1500	x12612
706E	Working routine data structures, implementation	2500	x1180
706D	Vasiliy's Multiset binary search, bitmasks, data structures, trees	1800	x10019
706C	Hard problem dp, strings	1600	x16209
704E	Iron Man data structures, geometry, trees	3300	x282
704D	Captain America flows, greedy	3100	x791
704C	Black Widow dp, graphs, implementation, math	2900	x462
704B	Ant Man dp, graphs, greedy	2500	x1844
704A	Thor brute force, data structures, implementation	1600	x9242
703E	Mishka and Divisors dp, number theory	2600	x594
703D	Mishka and Interesting sum data structures	2100	x3588
703C	Chris and Road geometry, implementation	2100	x1850
703B	Mishka and trip implementation, math	1400	x5673
702F	T-Shirts data structures	2800	x1396
702E	Analysis of Pathes in Functional Graph data structures, graphs	2100	x2594
702D	Road to Post Office math	1900	x3356
702C	Cellular Network binary search, implementation, two pointers	1500	x14771
702B	Powers of Two brute force, data structures, implementation, math	1500	x11784
701C	They Are Everywhere binary search, strings, two pointers	1500	x14978
700E	Cool Slogans string suffix structures, strings	3300	x1179
700D	Huffman Coding on Segment data structures, greedy	3100	x462
700C	Break Up dfs and similar, graphs	2600	x1282
700B	Connecting Universities dfs and similar, dp, graphs, trees	1800	x3951
700A	As Fast As Possible binary search, math	1900	x3183
699B	One Bomb implementation	1400	x7587
698F	Coprime Permutation combinatorics, number theory	3000	x436
698E	Cron	2800	x117
698D	Limak and Shooting Points brute force, geometry, math	2600	x540
698C	LRU bitmasks, dp, math, probabilities	2400	x1310
698B	Fix a Tree constructive algorithms, dfs and similar, dsu, graphs, trees	1700	x5712
698A	Vacations dp	1400	x30104
697B	Barnicle brute force, implementation, math, strings	1400	x5708
696F	...Dary! binary search, geometry, two pointers	3300	x122
696E	...Wait for it... data structures, dsu, trees	3000	x544
696D	Legen... data structures, dp, matrices, strings	2500	x1297
696C	PLEASE combinatorics, dp, implementation, math, matrices	2000	x2083
696B	Puzzles dfs and similar, math, probabilities, trees	1700	x3481
696A	Lorenzo Von Matterhorn brute force, data structures, implementation, trees	1500	x6061
691F	Couple Cover brute force, dp, number theory	2200	x1298
691E	Xor-sequences matrices	1900	x2511
691D	Swaps in Permutation dfs and similar, dsu, math	1700	x5504
691C	Exponential notation implementation, strings	1800	x2604
691B	s-palindrome implementation, strings	1600	x4808
690F3	Tree of Life (hard) trees	3200	x47
690F2	Tree of Life (medium) constructive algorithms, hashing, trees	2700	x81
690E2	Photographs (II)	2600	x142
690E1	Photographs (I)	1800	x675
690D3	The Wall (hard) dp	2100	x505
690D2	The Wall (medium) combinatorics	1800	x1246
690C3	Brain Network (hard) trees	2200	x904
690C2	Brain Network (medium) dfs and similar, graphs, trees	1500	x3715
690B3	Recover Polygon (hard) data structures	2600	x92
690B2	Recover Polygon (medium) geometry	2600	x203
690B1	Recover Polygon (easy)	1700	x940
690A3	Collective Mindsets (hard)	2400	x544
690A2	Collective Mindsets (medium)	2300	x706
689E	Mike and Geometry Problem combinatorics, data structures, dp, geometry, implementation	2000	x1922
689D	Friends and Subsequences binary search, data structures	2100	x3415
689C	Mike and Chocolate Thieves binary search, combinatorics, math	1700	x5313
689B	Mike and Shortcuts dfs and similar, graphs, greedy, shortest paths	1600	x5707
689A	Mike and Cellphone brute force, constructive algorithms, implementation	1400	x5255
687E	TOF dfs and similar, graphs	2900	x318
687D	Dividing Kingdom II brute force, data structures, dsu, graphs, sortings	2500	x952
687C	The Values You Can Make dp	1900	x5457
687B	Remainders Game chinese remainder theorem, math, number theory	1800	x5841
687A	NP-Hard Problem dfs and similar, graphs	1500	x14310
685E	Travelling Through the Snow Queen's Kingdom bitmasks, brute force, divide and conquer, graphs	2800	x553
685D	Kay and Eternity brute force, implementation, sortings	2600	x480
685C	Optimal Point binary search, math	2900	x582
685B	Kay and Snowflake data structures, dfs and similar, dp, trees	1900	x4051
685A	Robbers' watch brute force, combinatorics, dp, math	1700	x4227
683J	The Hero with Bombs *special problem	3000	x40
683I	Loader *special problem, graphs	2500	x38
683H	Exchange of Books *special problem	1900	x95
683G	The Fraction *special problem	1900	x130
683F	Reformat the String *special problem	1800	x146