Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
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brute force

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Problems

#	Name
513B1	Permutations brute force	1400	x3574
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x3551
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3536
471C	MUH and House of Cards binary search, brute force, greedy, math	1700	x3531
807B	T-Shirt Hunt brute force, implementation	1300	x3525
1726D	Edge Split brute force, constructive algorithms, dfs and similar, dsu, graphs, probabilities, trees	2000	x3524
446B	DZY Loves Modification brute force, data structures, greedy	2000	x3511
114B	PFAST Inc. bitmasks, brute force, graphs	1500	x3493
665B	Shopping brute force	1400	x3474
849B	Tell Your World brute force, geometry	1600	x3469
1520G	To Go Or Not To Go? brute force, dfs and similar, graphs, greedy, implementation, shortest paths	2200	x3459
1906A	Easy As ABC brute force	1000	x3441
229A	Shifts brute force, two pointers	1500	x3434
228B	Two Tables brute force, implementation	1400	x3430
278B	New Problem brute force, strings	1500	x3415
581D	Three Logos bitmasks, brute force, constructive algorithms, geometry, implementation, math	1700	x3406
991E	Bus Number brute force, combinatorics, math	1800	x3392
38B	Chess brute force, implementation, math	1200	x3375
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3374
632D	Longest Subsequence brute force, math, number theory	2100	x3352
645A	Amity Assessment brute force, constructive algorithms, implementation	1200	x3351
1216E1	Numerical Sequence (easy version) binary search, brute force, math	1900	x3340
1017D	The Wu bitmasks, brute force, data structures	1900	x3322
650B	Image Preview binary search, brute force, dp, two pointers	1900	x3305
30A	Accounting brute force, math	1400	x3301
1168B	Good Triple brute force, two pointers	1900	x3299
451C	Predict Outcome of the Game brute force, implementation, math	1700	x3296
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3294
1025D	Recovering BST brute force, dp, math, number theory, trees	2100	x3294
938C	Constructing Tests binary search, brute force, constructive algorithms	1700	x3272
1142A	The Beatles brute force, math	1700	x3257
839B	Game of the Rows brute force, greedy, implementation	1900	x3254
1553E	Permutation Shift brute force, combinatorics, constructive algorithms, dfs and similar, dsu, graphs, math	2100	x3227
1637E	Best Pair binary search, brute force, implementation	2100	x3175
1163C1	Power Transmission (Easy Edition) brute force, geometry	1900	x3140
1790F	Timofey and Black-White Tree brute force, dfs and similar, divide and conquer, graphs, greedy, math, shortest paths, trees	2100	x3111
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3066
474C	Captain Marmot brute force, geometry	2000	x3054
750D	New Year and Fireworks brute force, data structures, dfs and similar, dp, implementation	1900	x3053
1353F	Decreasing Heights brute force, dp	2200	x3047
14C	Four Segments brute force, constructive algorithms, geometry, implementation, math	1700	x3034
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3027
1327D	Infinite Path brute force, dfs and similar, graphs, math, number theory	2200	x3017
1181C	Flag brute force, combinatorics, dp, implementation	1900	x3000
850A	Five Dimensional Points brute force, geometry, math	1700	x2992
156A	Message brute force	1700	x2989
354C	Vasya and Beautiful Arrays brute force, dp, number theory	2100	x2965
1338C	Perfect Triples bitmasks, brute force, constructive algorithms, divide and conquer, math	2200	x2952
1889C1	Doremy's Drying Plan (Easy Version) brute force, data structures, dp, greedy, sortings	2000	x2951
1644E	Expand the Path brute force, combinatorics, data structures, implementation, math	1900	x2949
822D	My pretty girl Noora brute force, dp, greedy, math, number theory	1800	x2948
1810E	Monsters brute force, data structures, dfs and similar, dsu, graphs, greedy	2100	x2946
1472F	New Year's Puzzle brute force, dp, graph matchings, greedy, sortings	2100	x2928
281B	Nearest Fraction brute force, implementation, two pointers	1700	x2920
304B	Calendar brute force, implementation	1300	x2917
159C	String Manipulation 1.0 *special problem, binary search, brute force, data structures, strings	1400	x2911
102A	Clothes brute force	1200	x2894
181B	Number of Triplets binary search, brute force	1300	x2861
997B	Roman Digits brute force, combinatorics, dp, greedy, math	2000	x2853
1204D1	Kirk and a Binary String (easy version) brute force, greedy, strings	2000	x2847
1320C	World of Darkraft: Battle for Azathoth brute force, data structures, sortings	2000	x2846
641C	Little Artem and Dance brute force, constructive algorithms, implementation	1800	x2835
887C	Solution for Cube brute force, implementation	1500	x2831
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x2821
635A	Orchestra brute force, implementation	1100	x2817
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x2780
1662H	Boundary brute force, math		x2777
958C1	Encryption (easy) brute force	1200	x2763
731F	Video Cards brute force, data structures, implementation, math, number theory	1900	x2749
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x2737
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2721
525E	Anya and Cubes binary search, bitmasks, brute force, dp, math, meet-in-the-middle	2100	x2717
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x2710
113B	Petr# brute force, data structures, hashing, strings	2000	x2705
1373E	Sum of Digits brute force, constructive algorithms, dp, greedy	2200	x2690
1147B	Chladni Figure brute force, strings	1900	x2667
1806E	Tree Master brute force, data structures, dfs and similar, trees	2200	x2665
1858D	Trees and Segments brute force, data structures, dp, greedy, two pointers	2200	x2662
380A	Sereja and Prefixes binary search, brute force	1600	x2644
626D	Jerry's Protest brute force, combinatorics, dp, probabilities	1800	x2643
1166E	The LCMs Must be Large bitmasks, brute force, constructive algorithms, math, number theory	2100	x2638
394A	Counting Sticks brute force, implementation		x2633
1952C	They Have Fooled brute force, schedules		x2627
1154G	Minimum Possible LCM brute force, greedy, math, number theory	2200	x2611
55B	Smallest number brute force	1600	x2609
846C	Four Segments brute force, data structures, dp	1800	x2608
246C	Beauty Pageant brute force, constructive algorithms, greedy	1600	x2597
48B	Land Lot brute force, implementation	1200	x2597
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2589
725C	Hidden Word brute force, constructive algorithms, implementation, strings	1600	x2582
1771D	Hossam and (sub-)palindromic tree brute force, data structures, dfs and similar, dp, strings, trees	2100	x2579
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2558
142A	Help Farmer brute force, math	1600	x2556
633D	Fibonacci-ish brute force, dp, hashing, implementation, math	2000	x2555
203B	Game on Paper brute force, implementation	1300	x2541
599D	Spongebob and Squares brute force, math	1900	x2527
1559D2	Mocha and Diana (Hard Version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, trees, two pointers	2500	x2519
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2512
372B	Counting Rectangles is Fun brute force, divide and conquer, dp	1900	x2509
171D	Broken checker *special problem, brute force	1300	x2501