Problemset - Codeforces

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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
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Problems

#	Name
1901A	Line Trip greedy, math	800	x25645
1490B	Balanced Remainders brute force, constructive algorithms, math	1000	x25644
1350A	Orac and Factors math	900	x25594
1833C	Vlad Building Beautiful Array greedy, math	800	x25566
1355A	Sequence with Digits brute force, implementation, math	1200	x25548
1345B	Card Constructions binary search, brute force, dp, math	1100	x25522
224A	Parallelepiped brute force, geometry, math	1100	x25458
450B	Jzzhu and Sequences implementation, math	1300	x25406
1312A	Two Regular Polygons geometry, greedy, math, number theory	800	x25353
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x25338
1562A	The Miracle and the Sleeper greedy, math	800	x25208
1517A	Sum of 2050 greedy, math	800	x25130
1525A	Potion-making math, number theory	800	x25087
1719A	Chip Game games, math	800	x25043
1304A	Two Rabbits math	800	x25032
515C	Drazil and Factorial greedy, math, sortings	1400	x25029
598A	Tricky Sum math	900	x24971
1945A	Setting up Camp greedy, math	800	x24968
1741B	Funny Permutation constructive algorithms, math	800	x24839
1840C	Ski Resort combinatorics, math, two pointers	1000	x24812
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x24751
352A	Jeff and Digits brute force, implementation, math	1000	x24709
1607B	Odd Grasshopper math	900	x24699
1471A	Strange Partition greedy, math, number theory	900	x24644
1916A	2023 constructive algorithms, implementation, math, number theory	800	x24626
1497C1	k-LCM (easy version) constructive algorithms, math	1200	x24613
1886A	Sum of Three brute force, constructive algorithms, math	800	x24603
1388A	Captain Flint and Crew Recruitment brute force, greedy, math, number theory	800	x24562
1463A	Dungeon binary search, math	1100	x24526
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x24488
1398C	Good Subarrays data structures, dp, math	1600	x24295
1917A	Least Product constructive algorithms, math	800	x24282
1180A	Alex and a Rhombus dp, implementation, math	800	x24278
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x24207
1822B	Karina and Array greedy, math, sortings	800	x24129
1883A	Morning math	800	x24091
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x24078
1391A	Suborrays constructive algorithms, math	800	x24017
1855B	Longest Divisors Interval brute force, combinatorics, greedy, math, number theory	900	x24012
1646A	Square Counting math	800	x24008
1613A	Long Comparison implementation, math	900	x24004
1451A	Subtract or Divide greedy, math	800	x23935
1467A	Wizard of Orz constructive algorithms, greedy, math	900	x23902
507B	Amr and Pins geometry, math	1400	x23898
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23894
1594A	Consecutive Sum Riddle math	800	x23894
1345A	Puzzle Pieces math	800	x23828
1420B	Rock and Lever bitmasks, math	1200	x23825
1514A	Perfectly Imperfect Array math, number theory	800	x23823
1881B	Three Threadlets math	900	x23812
1916B	Two Divisors constructive algorithms, math, number theory	1000	x23797
1657A	Integer Moves brute force, math	800	x23716
1974A	Phone Desktop greedy, math		x23678
1699A	The Third Three Number Problem constructive algorithms, math	800	x23673
1370C	Number Game games, math, number theory	1400	x23603
272A	Dima and Friends implementation, math	1000	x23589
1326B	Maximums implementation, math	900	x23578
1934A	Too Min Too Max greedy, math	800	x23559
1206A	Choose Two Numbers math, sortings	800	x23559
1748A	The Ultimate Square math	800	x23549
1213A	Chips Moving math	900	x23531
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x23503
1102A	Integer Sequence Dividing math	800	x23498
1895A	Treasure Chest math	800	x23497
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x23482
1395A	Boboniu Likes to Color Balls brute force, math	1000	x23472
1430C	Numbers on Whiteboard constructive algorithms, data structures, greedy, implementation, math	1000	x23406
1238A	Prime Subtraction math, number theory	900	x23332
1354A	Alarm Clock math	900	x23260
1715A	Crossmarket constructive algorithms, greedy, math	800	x23223
1856B	Good Arrays implementation, math	900	x23211
1861A	Prime Deletion constructive algorithms, math	800	x23166
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23121
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x23053
1828A	Divisible Array constructive algorithms, math	800	x23052
1790C	Premutation brute force, implementation, math	1000	x23023
1665A	GCD vs LCM constructive algorithms, math	800	x23019
1629B	GCD Arrays greedy, math, number theory	800	x23010
1883C	Raspberries dp, math	1000	x22974
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x22947
1849B	Monsters greedy, math, sortings	1000	x22896
1744B	Even-Odd Increments implementation, math	800	x22890
1420A	Cubes Sorting math, sortings	900	x22869
1566A	Median Maximization binary search, greedy, math	800	x22781
1409C	Yet Another Array Restoration brute force, math, number theory	1200	x22764
1772C	Different Differences constructive algorithms, greedy, math	1000	x22749
1338A	Powered Addition greedy, math	1500	x22747
1334A	Level Statistics implementation, math	1200	x22695
1543B	Customising the Track combinatorics, greedy, math	900	x22691
1498A	GCD Sum brute force, math	800	x22680
1367C	Social Distance constructive algorithms, greedy, math	1300	x22647
1700A	Optimal Path constructive algorithms, greedy, math	800	x22569
651A	Joysticks dp, greedy, implementation, math	1100	x22531
1647A	Madoka and Math Dad implementation, math	800	x22507
1617B	GCD Problem brute force, constructive algorithms, math, number theory	900	x22497
1806A	Walking Master geometry, greedy, math	800	x22474
1108B	Divisors of Two Integers brute force, greedy, math, number theory	1100	x22474
1492A	Three swimmers math	800	x22456
1436A	Reorder math	800	x22435
1822C	Bun Lover math	800	x22364