Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
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constructive algorithms

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Problems

#	Name
1430C	Numbers on Whiteboard constructive algorithms, data structures, greedy, implementation, math	1000	x23239
1772C	Different Differences constructive algorithms, greedy, math	1000	x22599
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x21804
1837C	Best Binary String constructive algorithms, greedy	1000	x21006
798A	Mike and palindrome brute force, constructive algorithms, strings	1000	x21000
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x20986
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x20934
1405B	Array Cancellation constructive algorithms, implementation	1000	x20843
1579E1	Permutation Minimization by Deque constructive algorithms, greedy, math	1000	x20757
1713B	Optimal Reduction constructive algorithms, sortings	1000	x20681
1632B	Roof Construction bitmasks, constructive algorithms	1000	x20670
1715B	Beautiful Array constructive algorithms, greedy, math	1000	x19953
1861B	Two Binary Strings constructive algorithms, dp, greedy	1000	x19934
1562B	Scenes From a Memory brute force, constructive algorithms, implementation, math, number theory	1000	x19136
1770B	Koxia and Permutation constructive algorithms	1000	x18984
1569B	Chess Tournament constructive algorithms	1000	x18543
1438B	Valerii Against Everyone constructive algorithms, data structures, greedy, sortings	1000	x18319
1831B	Array merging constructive algorithms, greedy	1000	x18244
1634C	OKEA constructive algorithms	1000	x17900
1611C	Polycarp Recovers the Permutation constructive algorithms	1000	x17884
1614B	Divan and a New Project constructive algorithms, sortings	1000	x17759
1844B	Permutations & Primes constructive algorithms, math	1000	x17369
1174A	Ehab Fails to Be Thanos constructive algorithms, greedy, sortings	1000	x17144
672B	Different is Good constructive algorithms, implementation, strings	1000	x17033
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x16959
1659A	Red Versus Blue constructive algorithms, greedy, implementation, math	1000	x16809
805B	3-palindrome constructive algorithms	1000	x16044
804A	Find Amir constructive algorithms, greedy, math	1000	x15162
1144C	Two Shuffled Sequences constructive algorithms, sortings	1000	x14773
1265A	Beautiful String constructive algorithms, greedy	1000	x14745
1816B	Grid Reconstruction constructive algorithms, greedy	1000	x14642
1894B	Two Out of Three constructive algorithms	1000	x14553
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x14362
761A	Dasha and Stairs brute force, constructive algorithms, implementation, math	1000	x14318
1266B	Dice Tower constructive algorithms, math	1000	x14288
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x13278
1761B	Elimination of a Ring constructive algorithms, greedy, implementation	1000	x12968
1136B	Nastya Is Playing Computer Games constructive algorithms, math	1000	x11513
777A	Shell Game constructive algorithms, implementation, math	1000	x10027
779A	Pupils Redistribution constructive algorithms, math	1000	x9207
998A	Balloons constructive algorithms, implementation	1000	x9167
359A	Table constructive algorithms, greedy, implementation	1000	x8354
637A	Voting for Photos *special problem, constructive algorithms, implementation	1000	x5299
644A	Parliament of Berland *special problem, constructive algorithms	1000	x4373
491A	Up the hill constructive algorithms, implementation	1000	x2808
649A	Любимые числа Поликарпа constructive algorithms, implementation	1000	x1081
467B	Fedor and New Game bitmasks, brute force, constructive algorithms, implementation	1100	x35589
1360C	Similar Pairs constructive algorithms, graph matchings, greedy, sortings	1100	x31576
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x23919
1342B	Binary Period constructive algorithms, strings	1100	x23125
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23031
1511B	GCD Length constructive algorithms, math, number theory	1100	x21897
300A	Array brute force, constructive algorithms, implementation	1100	x21796
1739B	Array Recovery constructive algorithms, greedy, math	1100	x21321
1401B	Ternary Sequence constructive algorithms, greedy, math	1100	x20706
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x20359
1407A	Ahahahahahahahaha constructive algorithms, math	1100	x20052
1708B	Difference of GCDs constructive algorithms, math	1100	x19378
1729C	Jumping on Tiles constructive algorithms, strings	1100	x19257
1455C	Ping-pong constructive algorithms, games, math	1100	x19198
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x19148
1426C	Increase and Copy binary search, constructive algorithms, math	1100	x18993
1811C	Restore the Array constructive algorithms, greedy	1100	x18782
1743C	Save the Magazines constructive algorithms, dp, greedy	1100	x18562
1700B	Palindromic Numbers constructive algorithms, implementation, math	1100	x18213
1375A	Sign Flipping constructive algorithms, math	1100	x18022
1304B	Longest Palindrome brute force, constructive algorithms, greedy, implementation, strings	1100	x17378
1783B	Matrix of Differences constructive algorithms, math	1100	x17103
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x17054
1685A	Circular Local MiniMax constructive algorithms, greedy, sortings	1100	x16426
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x16136
1395B	Boboniu Plays Chess constructive algorithms	1100	x15768
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x15758
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x15666
1793B	Fedya and Array constructive algorithms, math	1100	x15153
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x14694
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x14572
1717B	Madoka and Underground Competitions constructive algorithms, implementation	1100	x14455
1797B	Li Hua and Pattern constructive algorithms, greedy	1100	x14368
1602B	Divine Array constructive algorithms, implementation	1100	x13798
1944B	Equal XOR bitmasks, constructive algorithms	1100	x13711
1038B	Non-Coprime Partition constructive algorithms, math	1100	x13058
1672C	Unequal Array constructive algorithms, greedy, implementation	1100	x12891
1421B	Putting Bricks in the Wall constructive algorithms, implementation	1100	x12871
534A	Exam constructive algorithms, implementation, math	1100	x11998
1523B	Lord of the Values constructive algorithms	1100	x11949
1942B	Bessie and MEX constructive algorithms, math	1100	x11737
1221B	Knights constructive algorithms, greedy	1100	x11568
1166B	All the Vowels Please constructive algorithms, math, number theory	1100	x11106
225A	Dice Tower constructive algorithms, greedy	1100	x10987
1099B	Squares and Segments binary search, constructive algorithms, math	1100	x10930
110B	Lucky String constructive algorithms, strings	1100	x9912
355A	Vasya and Digital Root constructive algorithms, implementation	1100	x9254
218A	Mountain Scenery brute force, constructive algorithms, implementation	1100	x8836
609B	The Best Gift constructive algorithms, implementation	1100	x8773
1173B	Nauuo and Chess constructive algorithms, greedy	1100	x8746
731B	Coupons and Discounts constructive algorithms, greedy	1100	x7849
618B	Guess the Permutation constructive algorithms	1100	x7816
686B	Little Robber Girl's Zoo constructive algorithms, implementation, sortings	1100	x7692
7A	Kalevitch and Chess brute force, constructive algorithms	1100	x6824