Problemset - Codeforces

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Codeforces Round #851 (Div. 2)
2 days
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constructive algorithms

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Problems

#	Name
266B	Queue at the School constructive algorithms, graph matchings, implementation, shortest paths	800	x101381
148A	Insomnia cure constructive algorithms, implementation, math	800	x69241
443A	Anton and Letters constructive algorithms, implementation	800	x65988
732A	Buy a Shovel brute force, constructive algorithms, implementation, math	800	x52850
1343B	Balanced Array constructive algorithms, math	800	x45094
1353A	Most Unstable Array constructive algorithms, greedy, math	800	x34815
1454A	Special Permutation constructive algorithms, probabilities	800	x34677
1335B	Construct the String constructive algorithms	900	x32486
1325A	EhAb AnD gCd constructive algorithms, greedy, number theory	800	x32473
1389A	LCM Problem constructive algorithms, greedy, math, number theory	800	x32125
1337A	Ichihime and Triangle constructive algorithms, math	800	x31088
467B	Fedor and New Game bitmasks, brute force, constructive algorithms, implementation	1100	x30158
478B	Random Teams combinatorics, constructive algorithms, greedy, math	1300	x30013
1372A	Omkar and Completion constructive algorithms, implementation	800	x29363
1521A	Nastia and Nearly Good Numbers constructive algorithms, math, number theory	1000	x28929
1690A	Print a Pedestal (Codeforces logo?) constructive algorithms, greedy	800	x28832
686A	Free Ice Cream constructive algorithms, implementation	800	x28607
1352B	Same Parity Summands constructive algorithms, math	1200	x28577
1702A	Round Down the Price constructive algorithms	800	x28540
1476A	K-divisible Sum binary search, constructive algorithms, greedy, math	1000	x27982
1360C	Similar Pairs constructive algorithms, graph matchings, greedy, sortings	1100	x27865
1529A	Eshag Loves Big Arrays constructive algorithms, greedy, math	800	x27256
1611A	Make Even constructive algorithms, math	800	x27021
1541A	Pretty Permutations constructive algorithms, greedy, implementation	800	x26509
1520C	Not Adjacent Matrix constructive algorithms	1000	x26311
1326A	Bad Ugly Numbers constructive algorithms, number theory	1000	x25899
1626A	Equidistant Letters constructive algorithms, sortings	800	x25861
1400A	String Similarity constructive algorithms, strings	800	x25185
1196A	Three Piles of Candies brute force, constructive algorithms, math	800	x25106
688B	Lovely Palindromes constructive algorithms, math	1000	x24841
1401A	Distance and Axis constructive algorithms, math	900	x24785
766B	Mahmoud and a Triangle constructive algorithms, geometry, greedy, math, number theory, sortings	1000	x24757
1537B	Bad Boy constructive algorithms, greedy, math	900	x24087
1335D	Anti-Sudoku constructive algorithms, implementation	1300	x24027
1433C	Dominant Piranha constructive algorithms, greedy	900	x23916
1509A	Average Height constructive algorithms	800	x23673
1611B	Team Composition: Programmers and Mathematicians binary search, constructive algorithms, math	800	x23621
118B	Present from Lena constructive algorithms, implementation	1000	x23603
766A	Mahmoud and Longest Uncommon Subsequence constructive algorithms, strings	1000	x23333
1469A	Regular Bracket Sequence constructive algorithms, greedy	1000	x23306
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x23158
1391A	Suborrays constructive algorithms, math	800	x23139
1490B	Balanced Remainders brute force, constructive algorithms, math	1000	x23074
1339B	Sorted Adjacent Differences constructive algorithms, sortings	1200	x22997
1365B	Trouble Sort constructive algorithms, implementation	1300	x22985
1711A	Perfect Permutation constructive algorithms	800	x22828
1674A	Number Transformation constructive algorithms, math	800	x22797
1333A	Little Artem constructive algorithms	1000	x22716
1627A	Not Shading constructive algorithms, implementation	800	x22502
1526A	Mean Inequality constructive algorithms, sortings	800	x22498
1621A	Stable Arrangement of Rooks constructive algorithms	800	x22443
1474B	Different Divisors binary search, constructive algorithms, greedy, math, number theory	1000	x22340
1467A	Wizard of Orz constructive algorithms, greedy, math	900	x22304
1699A	The Third Three Number Problem constructive algorithms, math	800	x21922
1348B	Phoenix and Beauty constructive algorithms, data structures, greedy, sortings	1400	x21881
1525B	Permutation Sort constructive algorithms, greedy	900	x21850
1342B	Binary Period constructive algorithms, strings	1100	x21801
1537C	Challenging Cliffs constructive algorithms, greedy, implementation, math	1200	x21679
1715A	Crossmarket constructive algorithms, greedy, math	800	x21639
1741B	Funny Permutation constructive algorithms, math	800	x21622
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x21582
1370B	GCD Compression constructive algorithms, math, number theory	1100	x21532
1747A	Two Groups constructive algorithms, greedy	800	x21528
1614A	Divan and a Store brute force, constructive algorithms, greedy	800	x21513
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x21491
1312B	Bogosort constructive algorithms, sortings	1000	x21420
768A	Oath of the Night's Watch constructive algorithms, sortings	900	x21084
1665A	GCD vs LCM constructive algorithms, math	800	x21025
1706A	Another String Minimization Problem 2-sat, constructive algorithms, greedy, string suffix structures, strings	800	x21007
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x20974
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x20833
1700A	Optimal Path constructive algorithms, greedy, math	800	x20789
1367C	Social Distance constructive algorithms, greedy, math	1300	x20699
1405A	Permutation Forgery constructive algorithms	800	x20671
1419D1	Sage's Birthday (easy version) binary search, constructive algorithms, greedy, sortings	1000	x20645
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x20489
1527B1	Palindrome Game (easy version) constructive algorithms, games	1200	x20482
199A	Hexadecimal's theorem brute force, constructive algorithms, implementation, number theory	900	x20436
1758A	SSeeeeiinngg DDoouubbllee constructive algorithms, strings	800	x20401
1638A	Reverse constructive algorithms, greedy, math	800	x20252
1499A	Domino on Windowsill combinatorics, constructive algorithms, math	800	x20200
1497C1	k-LCM (easy version) constructive algorithms, math	1200	x20185
1716B	Permutation Chain constructive algorithms, math	800	x20148
1504A	Déjà Vu constructive algorithms, strings	800	x20135
1574A	Regular Bracket Sequences constructive algorithms	800	x20042
1430C	Numbers on Whiteboard constructive algorithms, data structures, greedy, implementation, math	1000	x19942
680B	Bear and Finding Criminals constructive algorithms, implementation	1000	x19929
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x19876
1401B	Ternary Sequence constructive algorithms, greedy, math	1100	x19817
1743B	Permutation Value constructive algorithms, greedy	800	x19783
1365C	Rotation Matching constructive algorithms, data structures, greedy, implementation	1400	x19666
1620A	Equal or Not Equal constructive algorithms, dsu, implementation	800	x19577
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x19539
1698B	Rising Sand constructive algorithms, greedy, implementation	800	x19518
4B	Before an Exam constructive algorithms, greedy	1200	x19502
1644B	Anti-Fibonacci Permutation brute force, constructive algorithms, implementation	800	x19489
1511B	GCD Length constructive algorithms, math, number theory	1100	x19464
1405B	Array Cancellation constructive algorithms, implementation	1000	x19329
1774A	Add Plus Minus Sign constructive algorithms, math	800	x19309
1536A	Omkar and Bad Story brute force, constructive algorithms	800	x19307

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