Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
500C	New Year Book Reading constructive algorithms, greedy, implementation, math	1600	x5738
1775D	Friendly Spiders dfs and similar, graphs, math, number theory, shortest paths	1800	x5734
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x5731
1359E	Modular Stability combinatorics, math, number theory	2000	x5721
190A	Vasya and the Bus greedy, math	1100	x5708
525C	Ilya and Sticks greedy, math, sortings	1600	x5692
185A	Plant math	1300	x5682
976B	Lara Croft and the New Game implementation, math	1300	x5662
697B	Barnicle brute force, implementation, math, strings	1400	x5662
1477A	Nezzar and Board constructive algorithms, math, number theory	1800	x5654
703B	Mishka and trip implementation, math	1400	x5628
821B	Okabe and Banana Trees brute force, math	1300	x5623
573B	Bear and Blocks binary search, data structures, dp, math	1600	x5623
1545B	AquaMoon and Chess combinatorics, math	1900	x5613
1663C	Pōja Verdon *special problem, implementation, math		x5608
1268B	Domino for Young dp, greedy, math	2000	x5605
1036B	Diagonal Walking v.2 math	1600	x5599
1207E	XOR Guessing bitmasks, interactive, math	1900	x5594
1725G	Garage binary search, geometry, math	1500	x5579
787B	Not Afraid greedy, implementation, math	1300	x5567
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5547
715A	Plus and Square Root constructive algorithms, math	1600	x5541
817B	Makes And The Product combinatorics, implementation, math, sortings	1500	x5535
687B	Remainders Game chinese remainder theorem, math, number theory	1800	x5534
712C	Memory and De-Evolution greedy, math	1600	x5528
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5526
1750D	Count GCD combinatorics, math, number theory	1800	x5526
843A	Sorting by Subsequences dfs and similar, dsu, implementation, math, sortings	1400	x5521
1701D	Permutation Restoration binary search, data structures, greedy, math, sortings, two pointers	1900	x5467
1490G	Old Floppy Drive binary search, data structures, math	1900	x5456
676B	Pyramid of Glasses implementation, math, math	1500	x5456
1499D	The Number of Pairs dp, math, number theory	2100	x5437
851B	Arpa and an exam about geometry geometry, math	1400	x5417
476C	Dreamoon and Sums math	1600	x5403
741A	Arpa's loud Owf and Mehrdad's evil plan dfs and similar, math	1600	x5393
354A	Vasya and Robot brute force, greedy, math	1500	x5384
552C	Vanya and Scales brute force, dp, greedy, math, meet-in-the-middle, number theory	1900	x5381
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5378
1C	Ancient Berland Circus geometry, math	2100	x5369
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5363
1085C	Connect Three implementation, math	1600	x5361
1765K	Torus Path greedy, math	1500	x5351
625A	Guest From the Past implementation, math	1700	x5350
215B	Olympic Medal greedy, math	1300	x5350
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5334
1062C	Banh-mi greedy, implementation, math	1600	x5305
1450C1	Errich-Tac-Toe (Easy Version) constructive algorithms, math	2100	x5298
691D	Swaps in Permutation dfs and similar, dsu, math	1700	x5279
621C	Wet Shark and Flowers combinatorics, math, number theory, probabilities	1700	x5276
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x5263
1735D	Meta-set brute force, combinatorics, data structures, hashing, math	1700	x5262
148B	Escape implementation, math	1500	x5253
149C	Division into Teams greedy, math, sortings	1500	x5251
1151C	Problem for Nazar constructive algorithms, math	1800	x5246
1744E2	Divisible Numbers (hard version) brute force, math, number theory	1900	x5239
1749D	Counting Arrays combinatorics, dp, math, number theory	1900	x5235
1781D	Many Perfect Squares brute force, math, number theory	1800	x5216
248B	Chilly Willy math, number theory	1400	x5187
1009C	Annoying Present greedy, math	1700	x5184
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5179
424C	Magic Formulas math	1600	x5177
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5165
87A	Trains implementation, math	1500	x5155
1280A	Cut and Paste implementation, math	1700	x5150
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5130
1896D	Ones and Twos binary search, data structures, divide and conquer, math, two pointers	1700	x5130
1776L	Controllers binary search, math	1500	x5126
195B	After Training data structures, implementation, math	1300	x5115
141B	Hopscotch geometry, math	1400	x5115
895C	Square Subsets bitmasks, combinatorics, dp, math	2000	x5103
1647D	Madoka and the Best School in Russia constructive algorithms, dp, math, number theory	1900	x5094
725B	Food on the Plane implementation, math	1200	x5088
1197D	Yet Another Subarray Problem dp, greedy, math	1900	x5085
820B	Mister B and Angle in Polygon constructive algorithms, geometry, math	1300	x5079
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5047
630K	Indivisibility math, number theory	1500	x5014
568A	Primes or Palindromes? brute force, implementation, math, number theory	1600	x4998
710C	Magic Odd Square constructive algorithms, math	1500	x4980
746D	Green and Black Tea constructive algorithms, greedy, math	1500	x4974
1716D	Chip Move brute force, dp, math	2000	x4971
923A	Primal Sport math, number theory	1700	x4963
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x4954
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4947
1670D	Very Suspicious binary search, brute force, geometry, greedy, implementation, math	1700	x4940
1485D	Multiples and Power Differences constructive algorithms, graphs, math, number theory	2200	x4927
534C	Polycarpus' Dice math	1600	x4923
216A	Tiling with Hexagons implementation, math	1200	x4909
803C	Maximal GCD constructive algorithms, greedy, math	1900	x4903
214B	Hometask brute force, constructive algorithms, greedy, math	1600	x4875
689C	Mike and Chocolate Thieves binary search, combinatorics, math	1700	x4864
1202D	Print a 1337-string... combinatorics, constructive algorithms, math, strings	1900	x4862
442B	Andrey and Problem greedy, math, probabilities	1800	x4845
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x4832
359D	Pair of Numbers binary search, brute force, data structures, math, two pointers	2000	x4811
1593D2	Half of Same brute force, math, number theory	1900	x4781
837D	Round Subset dp, math	2100	x4778
337C	Quiz binary search, greedy, math, matrices, number theory	1600	x4763
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4751
569A	Music implementation, math	1500	x4739
407A	Triangle brute force, geometry, implementation, math	1600	x4739