Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
10:42:59
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brute force

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Problems

#	Name
1736A	Make A Equal to B brute force, greedy, sortings	800	x22736
1735D	Meta-set brute force, combinatorics, data structures, hashing, math	1700	x5470
1734A	Select Three Sticks brute force, greedy, sortings	800	x21089
1732D2	Balance (Hard version) brute force, data structures, number theory	2400	x1398
1732D1	Balance (Easy version) brute force, data structures, implementation, number theory	1500	x8628
1732C2	Sheikh (Hard Version) binary search, bitmasks, brute force, greedy, implementation, two pointers	2100	x2559
1732B	Ugu brute force, dp, greedy, implementation	900	x14945
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x14907
1731F	Function Sum brute force, combinatorics, dp, fft, math	2500	x685
1731D	Valiant's New Map binary search, brute force, data structures, dp, two pointers	1700	x7089
1731C	Even Subarrays bitmasks, brute force, hashing, math, number theory	1700	x9460
1728G	Illumination binary search, bitmasks, brute force, combinatorics, dp, math, two pointers	2700	x462
1728E	Red-Black Pepper brute force, data structures, greedy, math, number theory	2300	x1732
1728A	Colored Balls: Revisited brute force, greedy, implementation, sortings	800	x24596
1726D	Edge Split brute force, constructive algorithms, dfs and similar, dsu, graphs, probabilities, trees	2000	x3673
1722E	Counting Rectangles brute force, data structures, dp, implementation	1600	x10736
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x399
1720D1	Xor-Subsequence (easy version) bitmasks, brute force, dp, strings, trees, two pointers	1800	x5952
1720B	Interesting Sum brute force, data structures, greedy, math, sortings	800	x21123
1716D	Chip Move brute force, dp, math	2000	x5241
1714E	Add Modulo 10 brute force, math, number theory	1400	x16453
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x9038
1712E2	LCM Sum (hard version) brute force, data structures, math, number theory, two pointers	2500	x1259
1712E1	LCM Sum (easy version) binary search, brute force, combinatorics, math, number theory, two pointers	2300	x2140
1711B	Party brute force, graphs	1300	x13384
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1353
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2447
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x548
1709A	Three Doors brute force, greedy, implementation, math	800	x29545
1707B	Difference Array brute force, data structures, implementation, sortings	1900	x5708
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1696
1706D1	Chopping Carrots (Easy Version) binary search, brute force, constructive algorithms, greedy, number theory	1700	x6907
1705E	Mark and Professor Koro binary search, bitmasks, brute force, combinatorics, data structures, greedy	2300	x2063
1705C	Mark and His Unfinished Essay brute force, implementation	1400	x13311
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2333
1704B	Luke is a Foodie brute force, greedy, implementation	1000	x17890
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10585
1703D	Double Strings brute force, data structures, strings	1100	x25496
1703C	Cypher brute force, implementation, strings	800	x35380
1703A	YES or YES? brute force, implementation, strings	800	x68418
1701E	Text Editor brute force, dp, greedy, strings	2500	x1122
1700E	Serega the Pirate brute force, constructive algorithms	2600	x850
1698E	PermutationForces II brute force, combinatorics, greedy, sortings, trees, two pointers	2300	x1633
1698C	3SUM Closure brute force, data structures	1300	x18451
1698A	XOR Mixup bitmasks, brute force	800	x28908
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1184
1696H	Maximum Product? brute force, combinatorics, dp, greedy, implementation, math, two pointers	3500	x161
1696G	Fishingprince Plays With Array Again brute force, data structures, geometry, math	3300	x272
1696F	Tree Recovery brute force, constructive algorithms, dfs and similar, dsu, graphs, trees	2600	x868
1695D1	Tree Queries (Easy Version) brute force, constructive algorithms, dfs and similar, dp, greedy, trees	2200	x2164
1695C	Zero Path brute force, data structures, dp, graphs, greedy, shortest paths	1700	x10884
1693D	Decinc Dividing brute force, data structures, divide and conquer, dp, greedy	2800	x826
1692F	3SUM brute force, math	1300	x22601
1692D	The Clock brute force, implementation	1100	x19336
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15592
1691A	Beat The Odds brute force, greedy, math	800	x30460
1689E	ANDfinity bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2500	x1202
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16756
1688A	Cirno's Perfect Bitmasks Classroom bitmasks, brute force	800	x21570
1687D	Cute number binary search, brute force, data structures, dsu, implementation, math	2900	x581
1687C	Sanae and Giant Robot binary search, brute force, data structures, dsu, greedy, sortings	2500	x1400
1687A	The Enchanted Forest brute force, greedy	1600	x10339
1685C	Bring Balance brute force, constructive algorithms, greedy	2600	x1003
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3148
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12284
1681D	Required Length brute force, dfs and similar, dp, hashing, shortest paths	1700	x9584
1680D	Dog Walking brute force, greedy, math	2400	x1163
1680A	Minimums and Maximums brute force, math	800	x21524
1679A	AvtoBus brute force, greedy, math, number theory	900	x23925
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8403
1676H1	Maximum Crossings (Easy Version) brute force	1400	x13967
1676D	X-Sum brute force, greedy, implementation	1000	x25048
1676C	Most Similar Words brute force, greedy, implementation, implementation, math, strings	800	x30023
1674E	Breaking the Wall binary search, brute force, constructive algorithms, greedy, math	2000	x6389
1673C	Palindrome Basis brute force, dp, math, number theory	1500	x12662
1673B	A Perfectly Balanced String? brute force, greedy, strings	1100	x15099
1671F	Permutation Counting brute force, combinatorics, dp, fft, math	2700	x332
1671D	Insert a Progression brute force, constructive algorithms, greedy	1600	x7624
1671C	Dolce Vita binary search, brute force, greedy, math	1200	x17060
1671B	Consecutive Points Segment brute force, math, sortings	1000	x18495
1670D	Very Suspicious binary search, brute force, geometry, greedy, implementation, math	1700	x5097
1670B	Dorms War brute force, implementation, strings	1100	x12635
1667A	Make it Increasing brute force, greedy, math	1300	x14671
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1435
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3161
1665E	MinimizOR bitmasks, brute force, data structures, divide and conquer, greedy, implementation, two pointers	2500	x1514
1662O	Circular Maze brute force, dfs and similar, graphs, implementation		x1339
1662I	Ice Cream Shop brute force, implementation, sortings		x2093
1662H	Boundary brute force, math		x2950
1662A	Organizing SWERC brute force, implementation		x4312
1661E	Narrow Components brute force, data structures, dp, dsu, math, trees	2500	x945
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x17664
1660F1	Promising String (easy version) brute force, implementation, math, strings	1700	x7229
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x7279
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x8626
1659E	AND-MEX Walk bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2200	x1547
1659C	Line Empire binary search, brute force, dp, greedy, implementation, math	1500	x10433
1658F	Juju and Binary String brute force, constructive algorithms, greedy, math	2700	x758
1658D2	388535 (Hard Version) bitmasks, brute force, data structures, math	2300	x2530
1657D	For Gamers. By Gamers. binary search, brute force, greedy, math, sortings	2000	x4844