Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
1740A	Factorise N+M constructive algorithms, number theory	800	x20148
1739F	Keyboard Design bitmasks, data structures, dp, string suffix structures, strings	2600	x531
1739E	Cleaning Robot bitmasks, dp	2400	x1225
1739D	Reset K Edges binary search, data structures, dfs and similar, graphs, greedy, trees	1900	x5158
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x9074
1739B	Array Recovery constructive algorithms, greedy, math	1100	x22313
1739A	Immobile Knight implementation	800	x22627
1738H	Palindrome Addicts data structures, strings	3300	x235
1738G	Anti-Increasing Addicts constructive algorithms, dp, greedy, math	2900	x426
1738F	Connectivity Addicts constructive algorithms, dsu, graphs, greedy, interactive, shortest paths, trees	2400	x1218
1738E	Balance Addicts combinatorics, dp, math, two pointers	2300	x1535
1738D	Permutation Addicts constructive algorithms, data structures, dfs and similar, dsu, graphs, trees	1900	x3434
1738C	Even Number Addicts dp, games, greedy, math	1500	x11150
1738B	Prefix Sum Addicts constructive algorithms, greedy, math, sortings	1200	x15574
1738A	Glory Addicts greedy, implementation, sortings	800	x13513
1737G	Ela Takes Dancing Class binary search, data structures	3500	x116
1737F	Ela and Prime GCD constructive algorithms, math, number theory	3300	x123
1737E	Ela Goes Hiking combinatorics, dp, math, probabilities	2500	x928
1737D	Ela and the Wiring Wizard brute force, dp, graphs, greedy, implementation, shortest paths	2200	x1863
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5744
1737B	Ela's Fitness and the Luxury Number binary search, implementation, math	1300	x9386
1737A	Ela Sorting Books greedy, implementation, strings	900	x10129
1736E	Swap and Take dp, greedy	2600	x711
1736D	Equal Binary Subsequences constructive algorithms, geometry, greedy, implementation, strings	2200	x2480
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1281
1736C1	Good Subarrays (Easy Version) binary search, data structures, schedules, two pointers	1300	x15011
1736B	Playing with GCD math, number theory	1200	x17934
1736A	Make A Equal to B brute force, greedy, sortings	800	x22767
1735F	Pebbles and Beads data structures, geometry	2900	x230
1735E	House Planning constructive algorithms, data structures, graph matchings, greedy	2400	x1064
1735D	Meta-set brute force, combinatorics, data structures, hashing, math	1700	x5495
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9900
1735B	Tea with Tangerines greedy, math	900	x18183
1735A	Working Week constructive algorithms, greedy, math	800	x20209
1734F	Zeros and Ones bitmasks, divide and conquer, dp, math	2500	x806
1734E	Rectangular Congruence constructive algorithms, number theory	2100	x2906
1734D	Slime Escape data structures, dp, greedy, two pointers	1800	x6289
1734C	Removing Smallest Multiples greedy, math	1200	x18544
1734B	Bright, Nice, Brilliant constructive algorithms	800	x15777
1734A	Select Three Sticks brute force, greedy, sortings	800	x21146
1733E	Conveyor constructive algorithms, dp, math	2700	x1226
1733D2	Zero-One (Hard Version) dp, greedy	2000	x4183
1733D1	Zero-One (Easy Version) constructive algorithms, greedy, math	1400	x13444
1733C	Parity Shuffle Sorting constructive algorithms, sortings	1300	x15585
1733B	Rule of League constructive algorithms, math	900	x19687
1733A	Consecutive Sum greedy, sortings	800	x20900
1732E	Location data structures, dp, math, number theory	2800	x457
1732D2	Balance (Hard version) brute force, data structures, number theory	2400	x1401
1732D1	Balance (Easy version) brute force, data structures, implementation, number theory	1500	x8656
1732C2	Sheikh (Hard Version) binary search, bitmasks, brute force, greedy, implementation, two pointers	2100	x2566
1732C1	Sheikh (Easy version) binary search, bitmasks, greedy, two pointers	1800	x5894
1732B	Ugu brute force, dp, greedy, implementation	900	x14990
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x14951
1731F	Function Sum brute force, combinatorics, dp, fft, math	2500	x694
1731E	Graph Cost dp, greedy, math, number theory	2000	x2820
1731D	Valiant's New Map binary search, brute force, data structures, dp, two pointers	1700	x7155
1731C	Even Subarrays bitmasks, brute force, hashing, math, number theory	1700	x9520
1731B	Kill Demodogs greedy, math	1100	x18230
1731A	Joey Takes Money greedy, math	800	x22596
1730F	Almost Sorted bitmasks, data structures, dp	2700	x550
1730E	Maximums and Minimums combinatorics, data structures, divide and conquer, number theory	2700	x640
1730D	Prefixes and Suffixes constructive algorithms, strings, two pointers	2200	x2664
1730C	Minimum Notation data structures, greedy, math, sortings	1200	x16498
1730B	Meeting on the Line binary search, geometry, greedy, implementation, math, ternary search	1600	x12646
1730A	Planets data structures, greedy, sortings	800	x22991
1729G	Cut Substrings combinatorics, dp, hashing, strings, two pointers	2100	x2184
1729F	Kirei and the Linear Function hashing, math	1900	x4150
1729E	Guess the Cycle Size interactive, probabilities	1800	x6999
1729D	Friends and the Restaurant greedy, sortings, two pointers	1200	x20640
1729C	Jumping on Tiles constructive algorithms, strings	1100	x19944
1729B	Decode String greedy, strings	800	x30099
1729A	Two Elevators math	800	x40382
1728G	Illumination binary search, bitmasks, brute force, combinatorics, dp, math, two pointers	2700	x462
1728F	Fishermen flows, graph matchings, greedy	3100	x428
1728E	Red-Black Pepper brute force, data structures, greedy, math, number theory	2300	x1734
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x7230
1728C	Digital Logarithm data structures, greedy, sortings	1400	x15876
1728B	Best Permutation constructive algorithms, greedy	800	x20130
1728A	Colored Balls: Revisited brute force, greedy, implementation, sortings	800	x24624
1726H	Mainak and the Bleeding Polygon binary search, geometry, implementation, math	3500	x86
1726G	A Certain Magical Party combinatorics, data structures, greedy, sortings	3300	x290
1726F	Late For Work (submissions are not allowed) data structures, greedy, schedules, shortest paths	2900	x131
1726E	Almost Perfect combinatorics, fft, math	2400	x1422
1726D	Edge Split brute force, constructive algorithms, dfs and similar, dsu, graphs, probabilities, trees	2000	x3679
1726C	Jatayu's Balanced Bracket Sequence data structures, dsu, graphs, greedy	1300	x12337
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x15149
1726A	Mainak and Array greedy, math	900	x21785
1725M	Moving Both Hands dp, graphs, shortest paths	1800	x3120
1725L	Lemper Cooking Competition data structures	2400	x911
1725K	Kingdom of Criticism data structures, dsu	2500	x672
1725J	Journey dp, trees	2500	x377
1725I	Imitating the Key Tree combinatorics, dsu, trees	2800	x199
1725H	Hot Black Hot White constructive algorithms, math	1800	x2608
1725G	Garage binary search, geometry, math	1500	x5870
1725F	Field Photography bitmasks, data structures, sortings	2100	x987
1725E	Electrical Efficiency combinatorics, data structures, dp, math, number theory, trees	2500	x465
1725D	Deducing Sortability binary search, bitmasks, math	2900	x127
1725C	Circular Mirror binary search, combinatorics, geometry, math, two pointers	2000	x1621
1725B	Basketball Together binary search, greedy, sortings	1000	x13819
1725A	Accumulation of Dominoes math	800	x9229