Problemset - Codeforces

Problems

#	Name
702D	Road to Post Office math	1900	x3376
702C	Cellular Network binary search, implementation, two pointers	1500	x15355
702B	Powers of Two brute force, data structures, implementation, math	1500	x11991
702A	Maximum Increase dp, greedy, implementation	800	x45596
701C	They Are Everywhere binary search, strings, two pointers	1500	x15348
701B	Cells Not Under Attack data structures, math	1200	x11793
701A	Cards greedy, implementation	800	x19690
700E	Cool Slogans string suffix structures, strings	3300	x1189
700D	Huffman Coding on Segment data structures, greedy	3100	x462
700C	Break Up dfs and similar, graphs	2600	x1307
700B	Connecting Universities dfs and similar, dp, graphs, trees	1800	x4020
700A	As Fast As Possible binary search, math	1900	x3200
699B	One Bomb implementation	1400	x7614
699A	Launch of Collider implementation	1000	x16037
698F	Coprime Permutation combinatorics, number theory	3000	x438
698E	Cron	2800	x118
698D	Limak and Shooting Points brute force, geometry, math	2600	x542
698C	LRU bitmasks, dp, math, probabilities	2400	x1333
698B	Fix a Tree constructive algorithms, dfs and similar, dsu, graphs, trees	1700	x5760
698A	Vacations dp	1400	x30797
697B	Barnicle brute force, implementation, math, strings	1400	x5760
697A	Pineapple Incident implementation, math	900	x12828
696F	...Dary! binary search, geometry, two pointers	3300	x124
696E	...Wait for it... data structures, dsu, trees	3000	x559
696D	Legen... data structures, dp, matrices, strings	2500	x1313
696C	PLEASE combinatorics, dp, implementation, math, matrices	2000	x2087
696B	Puzzles dfs and similar, math, probabilities, trees	1700	x3526
696A	Lorenzo Von Matterhorn brute force, data structures, implementation, trees	1500	x6124
691F	Couple Cover brute force, dp, number theory	2200	x1308
691E	Xor-sequences matrices	1900	x2560
691D	Swaps in Permutation dfs and similar, dsu, math	1700	x5559
691C	Exponential notation implementation, strings	1800	x2615
691B	s-palindrome implementation, strings	1600	x7446
691A	Fashion in Berland implementation	1000	x10234
690F3	Tree of Life (hard) trees	3200	x53
690F2	Tree of Life (medium) constructive algorithms, hashing, trees	2700	x84
690F1	Tree of Life (easy)	1300	x2173
690E2	Photographs (II)	2600	x142
690E1	Photographs (I)	1800	x677
690D3	The Wall (hard) dp	2100	x523
690D2	The Wall (medium) combinatorics	1800	x1249
690D1	The Wall (easy)	1200	x2624
690C3	Brain Network (hard) trees	2200	x912
690C2	Brain Network (medium) dfs and similar, graphs, trees	1500	x3822
690C1	Brain Network (easy)	1300	x2780
690B3	Recover Polygon (hard) data structures	2600	x93
690B2	Recover Polygon (medium) geometry	2600	x204
690B1	Recover Polygon (easy)	1700	x941
690A3	Collective Mindsets (hard)	2400	x552
690A2	Collective Mindsets (medium)	2300	x710
690A1	Collective Mindsets (easy)	1100	x2879
689E	Mike and Geometry Problem combinatorics, data structures, dp, geometry, implementation	2000	x1942
689D	Friends and Subsequences binary search, data structures	2100	x3490
689C	Mike and Chocolate Thieves binary search, combinatorics, math	1700	x5394
689B	Mike and Shortcuts dfs and similar, graphs, greedy, shortest paths	1600	x6022
689A	Mike and Cellphone brute force, constructive algorithms, implementation	1400	x5274
688B	Lovely Palindromes constructive algorithms, math	1000	x32436
688A	Opponents implementation	800	x14026
687E	TOF dfs and similar, graphs	2900	x322
687D	Dividing Kingdom II brute force, data structures, dsu, graphs, sortings	2500	x963
687C	The Values You Can Make dp	1900	x5648
687B	Remainders Game chinese remainder theorem, math, number theory	1800	x5951
687A	NP-Hard Problem dfs and similar, graphs	1500	x14473
686B	Little Robber Girl's Zoo constructive algorithms, implementation, sortings	1100	x7807
686A	Free Ice Cream constructive algorithms, implementation	800	x37983
685E	Travelling Through the Snow Queen's Kingdom bitmasks, brute force, divide and conquer, graphs	2800	x557
685D	Kay and Eternity brute force, implementation, sortings	2600	x485
685C	Optimal Point binary search, math	2900	x585
685B	Kay and Snowflake data structures, dfs and similar, dp, trees	1900	x4168
685A	Robbers' watch brute force, combinatorics, dp, math	1700	x4252
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
683E	Hammer throwing *special problem	1800	x188
683D	Chocolate Bar *special problem, math	1400	x323
683C	Symmetric Difference *special problem	1600	x322
683B	The Teacher of Physical Education *special problem	1600	x317
683A	The Check of the Point *special problem, geometry	1200	x799
682E	Alyona and Triangles geometry, two pointers	2600	x669
682D	Alyona and Strings dp, strings	1900	x3337
682C	Alyona and the Tree dfs and similar, dp, graphs, trees	1600	x7288
682B	Alyona and Mex sortings	1200	x11569
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x21858
681E	Runaway to a Shadow geometry, sortings	2500	x472
681D	Gifts by the List constructive algorithms, dfs and similar, graphs, trees	2000	x1788
681C	Heap Operations constructive algorithms, data structures, greedy	1600	x7820
681B	Economy Game brute force	1300	x8979
681A	A Good Contest implementation	800	x15551
680B	Bear and Finding Criminals constructive algorithms, implementation	1000	x24486
680A	Bear and Five Cards constructive algorithms, implementation	800	x12552
679E	Bear and Bad Powers of 42 data structures	3100	x693
679D	Bear and Chase brute force, dfs and similar, graphs, implementation, math, probabilities	2900	x318
679C	Bear and Square Grid dfs and similar, dsu, implementation	2400	x1157
679B	Bear and Tower of Cubes binary search, dp, greedy	2200	x2152
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x13169
678F	Lena and Queries data structures, divide and conquer, geometry	2500	x891
678E	Another Sith Tournament bitmasks, dp, math, probabilities	2200	x2234
678D	Iterated Linear Function math, number theory	1700	x4570