Problemset - Codeforces

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math

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Problems

#	Name
507B	Amr and Pins geometry, math	1400	x23825
1594A	Consecutive Sum Riddle math	800	x23830
1467A	Wizard of Orz constructive algorithms, greedy, math	900	x23850
1883A	Morning math	800	x23869
1451A	Subtract or Divide greedy, math	800	x23918
1613A	Long Comparison implementation, math	900	x23948
1646A	Square Counting math	800	x23981
1968A	Maximize? brute force, math, number theory		x23987
1391A	Suborrays constructive algorithms, math	800	x23999
1624C	Division by Two and Permutation constructive algorithms, flows, graph matchings, greedy, math	1100	x24014
1822B	Karina and Array greedy, math, sortings	800	x24073
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x24142
1398C	Good Subarrays data structures, dp, math	1600	x24168
1917A	Least Product constructive algorithms, math	800	x24174
1180A	Alex and a Rhombus dp, implementation, math	800	x24200
1859B	Olya and Game with Arrays constructive algorithms, greedy, math, sortings	1000	x24267
1463A	Dungeon binary search, math	1100	x24448
1886A	Sum of Three brute force, constructive algorithms, math	800	x24502
1916A	2023 constructive algorithms, implementation, math, number theory	800	x24507
1471A	Strange Partition greedy, math, number theory	900	x24510
1497C1	k-LCM (easy version) constructive algorithms, math	1200	x24513
1945A	Setting up Camp greedy, math	800	x24545
1388A	Captain Flint and Crew Recruitment brute force, greedy, math, number theory	800	x24547
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x24557
1607B	Odd Grasshopper math	900	x24565
1840C	Ski Resort combinatorics, math, two pointers	1000	x24573
352A	Jeff and Digits brute force, implementation, math	1000	x24625
1741B	Funny Permutation constructive algorithms, math	800	x24784
598A	Tricky Sum math	900	x24840
515C	Drazil and Factorial greedy, math, sortings	1400	x24957
1719A	Chip Game games, math	800	x25008
1304A	Two Rabbits math	800	x25015
1525A	Potion-making math, number theory	800	x25068
1517A	Sum of 2050 greedy, math	800	x25097
1901A	Line Trip greedy, math	800	x25161
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x25182
1562A	The Miracle and the Sleeper greedy, math	800	x25183
1312A	Two Regular Polygons geometry, greedy, math, number theory	800	x25325
450B	Jzzhu and Sequences implementation, math	1300	x25328
224A	Parallelepiped brute force, geometry, math	1100	x25367
1345B	Card Constructions binary search, brute force, dp, math	1100	x25477
1355A	Sequence with Digits brute force, implementation, math	1200	x25482
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25507
1833C	Vlad Building Beautiful Array greedy, math	800	x25507
1350A	Orac and Factors math	900	x25565
1490B	Balanced Remainders brute force, constructive algorithms, math	1000	x25592
1674B	Dictionary combinatorics, math	800	x25615
1814A	Coins implementation, math	800	x25631
1674A	Number Transformation constructive algorithms, math	800	x25666
1550B	Maximum Cost Deletion greedy, math	1000	x25709
1373A	Donut Shops greedy, implementation, math	1000	x25787
463B	Caisa and Pylons brute force, implementation, math	1100	x25817
1931C	Make Equal Again brute force, greedy, math	1000	x25979
1455A	Strange Functions math, number theory	800	x26027
1743A	Password brute force, combinatorics, implementation, math	800	x26087
1560C	Infinity Table implementation, math	800	x26093
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x26141
1537C	Challenging Cliffs constructive algorithms, greedy, implementation, math	1200	x26316
1474B	Different Divisors binary search, constructive algorithms, greedy, math, number theory	1000	x26320
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x26330
1543A	Exciting Bets greedy, math, number theory	900	x26386
1920A	Satisfying Constraints brute force, greedy, math	800	x26445
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x26478
1790B	Taisia and Dice greedy, greedy, math	800	x26659
1650B	DIV + MOD math	900	x26817
1401A	Distance and Axis constructive algorithms, math	900	x26885
1398A	Bad Triangle geometry, math	800	x26983
1538C	Number of Pairs binary search, data structures, math, two pointers	1300	x26991
1849A	Morning Sandwich implementation, math	800	x27030
1855A	Dalton the Teacher greedy, math	800	x27162
1196A	Three Piles of Candies brute force, constructive algorithms, math	800	x27219
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x27235
1421A	XORwice bitmasks, greedy, math	800	x27246
1921C	Sending Messages greedy, math	900	x27254
550C	Divisibility by Eight brute force, dp, math	1500	x27266
1555A	PizzaForces brute force, math	900	x27273
1234A	Equalize Prices Again math	800	x27273
1285A	Mezo Playing Zoma math	800	x27292
1557A	Ezzat and Two Subsequences brute force, math, sortings	800	x27460
1660B	Vlad and Candies math	800	x27514
1788A	One and Two brute force, implementation, math	800	x27549
1550A	Find The Array greedy, math	800	x27649
1853A	Desorting brute force, greedy, math	800	x27936
1537B	Bad Boy constructive algorithms, greedy, math	900	x27968
1768A	Greatest Convex greedy, math, number theory	800	x28001
1843B	Long Long greedy, math, two pointers	800	x28020
1328B	K-th Beautiful String binary search, brute force, combinatorics, implementation, math	1300	x28125
1409B	Minimum Product brute force, greedy, math	1100	x28243
1341A	Nastya and Rice math	900	x28278
1519A	Red and Blue Beans math	800	x28289
1878C	Vasilije in Cacak math	900	x28398
1256A	Payment Without Change math	1000	x28428
1611B	Team Composition: Programmers and Mathematicians binary search, constructive algorithms, math	800	x28438
1714A	Everyone Loves to Sleep implementation, math	900	x28500
734B	Anton and Digits brute force, greedy, implementation, math	800	x28523
1914B	Preparing for the Contest constructive algorithms, math	800	x28525
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x28548
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x28608
1526B	I Hate 1111 dp, math, number theory	1400	x28684
1918A	Brick Wall constructive algorithms, greedy, implementation, math	800	x28706