Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
19:44:11
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Codeforces Round 941 (Div. 2)
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brute force

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Problems

#	Name
513B1	Permutations brute force	1400	x3575
1808C	Unlucky Numbers brute force, dp, greedy, implementation	1900	x3560
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3541
1726D	Edge Split brute force, constructive algorithms, dfs and similar, dsu, graphs, probabilities, trees	2000	x3535
471C	MUH and House of Cards binary search, brute force, greedy, math	1700	x3533
807B	T-Shirt Hunt brute force, implementation	1300	x3526
114B	PFAST Inc. bitmasks, brute force, graphs	1500	x3516
446B	DZY Loves Modification brute force, data structures, greedy	2000	x3514
1906A	Easy As ABC brute force	1000	x3487
1520G	To Go Or Not To Go? brute force, dfs and similar, graphs, greedy, implementation, shortest paths	2200	x3479
849B	Tell Your World brute force, geometry	1600	x3476
665B	Shopping brute force	1400	x3475
229A	Shifts brute force, two pointers	1500	x3435
228B	Two Tables brute force, implementation	1400	x3430
278B	New Problem brute force, strings	1500	x3416
581D	Three Logos bitmasks, brute force, constructive algorithms, geometry, implementation, math	1700	x3411
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3405
991E	Bus Number brute force, combinatorics, math	1800	x3400
38B	Chess brute force, implementation, math	1200	x3382
632D	Longest Subsequence brute force, math, number theory	2100	x3362
1216E1	Numerical Sequence (easy version) binary search, brute force, math	1900	x3358
645A	Amity Assessment brute force, constructive algorithms, implementation	1200	x3355
1017D	The Wu bitmasks, brute force, data structures	1900	x3331
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3314
650B	Image Preview binary search, brute force, dp, two pointers	1900	x3307
1168B	Good Triple brute force, two pointers	1900	x3306
30A	Accounting brute force, math	1400	x3305
451C	Predict Outcome of the Game brute force, implementation, math	1700	x3296
1025D	Recovering BST brute force, dp, math, number theory, trees	2100	x3294
1142A	The Beatles brute force, math	1700	x3275
938C	Constructing Tests binary search, brute force, constructive algorithms	1700	x3273
839B	Game of the Rows brute force, greedy, implementation	1900	x3257
1163C1	Power Transmission (Easy Edition) brute force, geometry	1900	x3247
1553E	Permutation Shift brute force, combinatorics, constructive algorithms, dfs and similar, dsu, graphs, math	2100	x3231
1637E	Best Pair binary search, brute force, implementation	2100	x3177
1790F	Timofey and Black-White Tree brute force, dfs and similar, divide and conquer, graphs, greedy, math, shortest paths, trees	2100	x3136
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3075
474C	Captain Marmot brute force, geometry	2000	x3061
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3058
750D	New Year and Fireworks brute force, data structures, dfs and similar, dp, implementation	1900	x3054
1353F	Decreasing Heights brute force, dp	2200	x3052
14C	Four Segments brute force, constructive algorithms, geometry, implementation, math	1700	x3050
1957D	A BIT of an Inequality bitmasks, brute force, dp, math		x3035
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3029
1327D	Infinite Path brute force, dfs and similar, graphs, math, number theory	2200	x3023
1181C	Flag brute force, combinatorics, dp, implementation	1900	x3000
850A	Five Dimensional Points brute force, geometry, math	1700	x2992
156A	Message brute force	1700	x2991
1889C1	Doremy's Drying Plan (Easy Version) brute force, data structures, dp, greedy, sortings	2000	x2985
354C	Vasya and Beautiful Arrays brute force, dp, number theory	2100	x2968
1810E	Monsters brute force, data structures, dfs and similar, dsu, graphs, greedy	2100	x2958
1338C	Perfect Triples bitmasks, brute force, constructive algorithms, divide and conquer, math	2200	x2958
1644E	Expand the Path brute force, combinatorics, data structures, implementation, math	1900	x2957
822D	My pretty girl Noora brute force, dp, greedy, math, number theory	1800	x2952
1472F	New Year's Puzzle brute force, dp, graph matchings, greedy, sortings	2100	x2932
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	x2915
102A	Clothes brute force	1200	x2897
1320C	World of Darkraft: Battle for Azathoth brute force, data structures, sortings	2000	x2891
181B	Number of Triplets binary search, brute force	1300	x2876
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2857
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x2856
997B	Roman Digits brute force, combinatorics, dp, greedy, math	2000	x2856
1204D1	Kirk and a Binary String (easy version) brute force, greedy, strings	2000	x2848
641C	Little Artem and Dance brute force, constructive algorithms, implementation	1800	x2839
887C	Solution for Cube brute force, implementation	1500	x2833
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x2825
635A	Orchestra brute force, implementation	1100	x2818
1147B	Chladni Figure brute force, strings	1900	x2804
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x2788
1662H	Boundary brute force, math		x2780
958C1	Encryption (easy) brute force	1200	x2770
731F	Video Cards brute force, data structures, implementation, math, number theory	1900	x2749
525E	Anya and Cubes binary search, bitmasks, brute force, dp, math, meet-in-the-middle	2100	x2722
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x2713
113B	Petr# brute force, data structures, hashing, strings	2000	x2709
1166E	The LCMs Must be Large bitmasks, brute force, constructive algorithms, math, number theory	2100	x2693
1373E	Sum of Digits brute force, constructive algorithms, dp, greedy	2200	x2691
1858D	Trees and Segments brute force, data structures, dp, greedy, two pointers	2200	x2681
1952C	They Have Fooled brute force, schedules		x2676
1806E	Tree Master brute force, data structures, dfs and similar, trees	2200	x2671
626D	Jerry's Protest brute force, combinatorics, dp, probabilities	1800	x2647
380A	Sereja and Prefixes binary search, brute force	1600	x2646
394A	Counting Sticks brute force, implementation		x2633
55B	Smallest number brute force	1600	x2619
1154G	Minimum Possible LCM brute force, greedy, math, number theory	2200	x2613
846C	Four Segments brute force, data structures, dp	1800	x2612
1863E	Speedrun brute force, dfs and similar, dp, graphs, greedy, math, sortings, two pointers	2100	x2600
246C	Beauty Pageant brute force, constructive algorithms, greedy	1600	x2599
48B	Land Lot brute force, implementation	1200	x2599
1771D	Hossam and (sub-)palindromic tree brute force, data structures, dfs and similar, dp, strings, trees	2100	x2587
725C	Hidden Word brute force, constructive algorithms, implementation, strings	1600	x2584
142A	Help Farmer brute force, math	1600	x2562
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2558
633D	Fibonacci-ish brute force, dp, hashing, implementation, math	2000	x2558
203B	Game on Paper brute force, implementation	1300	x2541
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2536
599D	Spongebob and Squares brute force, math	1900	x2530
1559D2	Mocha and Diana (Hard Version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, trees, two pointers	2500	x2523