Problemset - Codeforces

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Codeforces Round (Div. 2)
7 days

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Problems

#	Name
575I	Robots protection data structures	2800	x458
575H	Bots combinatorics, dp, math, number theory	1800	x1680
575G	Run for beer dfs and similar, shortest paths	2200	x885
575F	Bulbo dp, greedy	2100	x1034
575E	Spectator Riots geometry	2800	x287
575D	Tablecity constructive algorithms, implementation	1700	x1826
575C	Party bitmasks, brute force, graph matchings	2700	x222
575B	Bribes dfs and similar, graphs, trees	2200	x1065
575A	Fibonotci data structures, math, matrices	2700	x802
574B	Bear and Three Musketeers brute force, dfs and similar, graphs, hashing	1500	x7794
574A	Bear and Elections greedy, implementation	1200	x9083
573E	Bear and Bowling data structures, greedy	3200	x1726
573D	Bear and Cavalry data structures, divide and conquer, dp	3000	x536
573C	Bear and Drawing constructive algorithms, dfs and similar, trees	2300	x971
573B	Bear and Blocks binary search, data structures, dp, math	1600	x5849
573A	Bear and Poker implementation, math, number theory	1300	x16570
572B	Order Book data structures, greedy, implementation, sortings	1300	x6948
572A	Arrays sortings	900	x16569
571E	Geometric Progressions math	3200	x261
571D	Campus binary search, data structures, dsu, trees	3100	x679
571C	CNF 2 constructive algorithms, dfs and similar, graphs, greedy	2500	x667
571B	Minimization dp, greedy, sortings	2000	x2619
571A	Lengthening Sticks combinatorics, implementation, math	2100	x2324
570E	Pig and Palindromes combinatorics, dp	2300	x1892
570D	Tree Requests binary search, bitmasks, constructive algorithms, dfs and similar, graphs, trees	2200	x7127
570C	Replacement constructive algorithms, data structures, implementation	1600	x9133
570B	Simple Game constructive algorithms, games, greedy, implementation, math	1300	x16114
570A	Elections implementation	1100	x13892
569B	Inventory greedy, math	1200	x7093
569A	Music implementation, math	1500	x4794
568E	Longest Increasing Subsequence data structures, dp	3000	x595
568D	Sign Posts brute force, geometry, math	2800	x308
568C	New Language 2-sat, greedy	2600	x853
568B	Symmetric and Transitive combinatorics, dp, math	1900	x2240
568A	Primes or Palindromes? brute force, implementation, math, number theory	1600	x5056
567F	Mausoleum dp	2400	x582
567E	President and Roads dfs and similar, graphs, hashing, shortest paths	2200	x1743
567D	One-Dimensional Battle Ships binary search, data structures, greedy, sortings	1700	x4781
567C	Geometric Progression binary search, data structures, dp	1700	x9465
567B	Berland National Library implementation	1300	x8432
567A	Lineland Mail greedy, implementation	900	x32138
566G	Max and Min geometry	2500	x335
566F	Clique in the Divisibility Graph dp, math, number theory	1500	x3612
566E	Restoring Map bitmasks, constructive algorithms, trees	3200	x632
566D	Restructuring Company data structures, dsu	1900	x3259
566C	Logistical Questions dfs and similar, divide and conquer, trees	3000	x753
566B	Replicating Processes constructive algorithms, greedy	2600	x271
566A	Matching Names dfs and similar, strings, trees	2300	x914
560B	Gerald is into Art constructive algorithms, implementation	1200	x7918
560A	Currency System in Geraldion implementation, sortings	1000	x17097
559E	Gerald and Path dp, sortings	3000	x898
559D	Randomizer combinatorics, geometry, probabilities	2800	x437
559C	Gerald and Giant Chess combinatorics, dp, math, number theory	2200	x6473
559B	Equivalent Strings divide and conquer, hashing, sortings, strings	1700	x10619
559A	Gerald's Hexagon brute force, geometry, math	1600	x10430
558E	A Simple Task data structures, sortings, strings	2300	x6008
558D	Guess Your Way Out! II data structures, implementation, sortings	2300	x1144
558C	Amr and Chemistry brute force, graphs, greedy, math, shortest paths	1900	x3986
558B	Amr and The Large Array implementation	1300	x7842
558A	Lala Land and Apple Trees brute force, implementation, sortings	1100	x10338
557E	Ann and Half-Palindrome data structures, dp, graphs, string suffix structures, strings, trees	2300	x1080
557D	Vitaly and Cycle combinatorics, dfs and similar, graphs, math	2000	x2201
557C	Arthur and Table brute force, data structures, dp, greedy, math, sortings	1900	x4009
557B	Pasha and Tea constructive algorithms, implementation, math, sortings	1500	x7184
557A	Ilya and Diplomas greedy, implementation, math	1100	x8259
556B	Case of Fake Numbers brute force, implementation	1100	x7928
556A	Case of the Zeros and Ones greedy	900	x39797
555E	Case of Computer Network dfs and similar, graphs, trees	2800	x2372
555D	Case of a Top Secret binary search, implementation, math	2500	x867
555C	Case of Chocolate data structures	2200	x1960
555B	Case of Fugitive data structures, greedy, sortings	2000	x3728
555A	Case of Matryoshkas implementation	1500	x6542
554B	Ohana Cleans Up brute force, greedy, strings	1200	x9937
554A	Kyoya and Photobooks brute force, math, strings	900	x13200
553E	Kyoya and Train dp, fft, graphs, math, probabilities	3200	x554
553D	Nudist Beach binary search, graphs, greedy	2300	x998
553C	Love Triangles dfs and similar, dsu, graphs	2200	x1781
553B	Kyoya and Permutation binary search, combinatorics, constructive algorithms, greedy, implementation, math	1900	x2116
553A	Kyoya and Colored Balls combinatorics, dp, math	1500	x8649
552E	Vanya and Brackets brute force, dp, expression parsing, greedy, implementation, strings	2100	x1627
552D	Vanya and Triangles brute force, combinatorics, data structures, geometry, math, sortings	1900	x4483
552C	Vanya and Scales brute force, dp, greedy, math, meet-in-the-middle, number theory	1900	x5474
552B	Vanya and Books implementation, math	1200	x15404
552A	Vanya and Table implementation, math	1000	x9561
551E	GukiZ and GukiZiana binary search, data structures, implementation	2500	x1850
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1964
551C	GukiZ hates Boxes binary search, greedy	2200	x3571
551B	ZgukistringZ brute force, constructive algorithms, implementation, strings	1800	x3859
551A	GukiZ and Contest brute force, implementation, sortings	800	x16286
550E	Brackets in Implications constructive algorithms, greedy, implementation, math	2200	x1392
550D	Regular Bridge constructive algorithms, graphs, implementation	1900	x3340
550C	Divisibility by Eight brute force, dp, math	1500	x28590
550B	Preparing Olympiad bitmasks, brute force	1400	x21076
550A	Two Substrings brute force, dp, greedy, implementation, strings	1500	x37896
549H	Degenerate Matrix binary search, math	2100	x1990
549G	Happy Line constructive algorithms, greedy, sortings	2200	x2437
549F	Yura and Developers data structures, divide and conquer	2800	x869
549E	Sasha Circle geometry, math	2700	x154
549D	Haar Features greedy, implementation	1900	x2141
549C	The Game Of Parity games	2200	x1735