Problemset - Codeforces

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Problems

#	Name
1404D	Game of Pairs constructive algorithms, dfs and similar, interactive, math, number theory	2800	x1102
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x53
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x1202
1401D	Maximum Distributed Tree dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees	1800	x9384
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x24452
1401B	Ternary Sequence constructive algorithms, greedy, math	1100	x21159
1401A	Distance and Axis constructive algorithms, math	900	x27591
1400G	Mercenaries bitmasks, brute force, combinatorics, dp, dsu, math, two pointers	2600	x981
1400D	Zigzags brute force, combinatorics, data structures, math, two pointers	1900	x10384
1400B	RPG Protagonist brute force, greedy, math	1700	x11240
1398G	Running Competition bitmasks, fft, math, number theory	2600	x1120
1398E	Two Types of Spells binary search, data structures, greedy, implementation, math, sortings	2200	x2435
1398C	Good Subarrays data structures, dp, math	1600	x27025
1398A	Bad Triangle geometry, math	800	x27720
1397B	Power Sequence brute force, math, number theory, sortings	1500	x14773
1395A	Boboniu Likes to Color Balls brute force, math	1000	x24211
1393C	Pinkie Pie Eats Patty-cakes constructive algorithms, greedy, math, sortings	1700	x10658
1393A	Rainbow Dash, Fluttershy and Chess Coloring greedy, math	800	x20554
1392I	Kevin and Grid fft, graphs, math	3300	x205
1392H	ZS Shuffles Cards combinatorics, dp, math, probabilities	3000	x781
1392G	Omkar and Pies bitmasks, dfs and similar, dp, math, shortest paths	2900	x515
1392F	Omkar and Landslide binary search, constructive algorithms, data structures, greedy, math	2400	x2185
1392E	Omkar and Duck bitmasks, constructive algorithms, interactive, math	2100	x3546
1392B	Omkar and Infinity Clock implementation, math	800	x18506
1392A	Omkar and Password greedy, math	800	x20808
1391C	Cyclic Permutations combinatorics, dp, graphs, math	1500	x15077
1391A	Suborrays constructive algorithms, math	800	x24452
1389E	Calendar Ambiguity math, number theory	2200	x3477
1389D	Segment Intersections brute force, greedy, implementation, math	2100	x4345
1389A	LCM Problem constructive algorithms, greedy, math, number theory	800	x41979
1388C	Uncle Bogdan and Country Happiness dfs and similar, greedy, math, trees	1800	x9776
1388B	Captain Flint and a Long Voyage greedy, math	1000	x22332
1388A	Captain Flint and Crew Recruitment brute force, greedy, math, number theory	800	x25014
1387A	Graph *special problem, binary search, dfs and similar, dp, math, ternary search	2100	x729
1386B	Mixture *special problem, data structures, geometry, math, sortings	2900	x122
1385A	Three Pairwise Maximums math	800	x39482
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x5095
1381E	Origami geometry, math, sortings	3300	x267
1380G	Circular Dungeon greedy, math, probabilities	2600	x811
1380D	Berserk And Fireball constructive algorithms, greedy, implementation, math, two pointers	2000	x4711
1379E	Inverse Genealogy constructive algorithms, divide and conquer, dp, math, trees	2800	x433
1379B	Dubious Cyrpto binary search, brute force, math, number theory	1500	x12712
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x265
1375F	Integer Game constructive algorithms, games, interactive, math	2600	x2270
1375A	Sign Flipping constructive algorithms, math	1100	x18397
1374D	Zero Remainder Array math, sortings, two pointers	1400	x24121
1374B	Multiply by 2, divide by 6 math	900	x51509
1374A	Required Remainder math	800	x54492
1373C	Pluses and Minuses math	1300	x18429
1373A	Donut Shops greedy, implementation, math	1000	x27220
1372C	Omkar and Baseball constructive algorithms, math	1500	x17953
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x28416
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2357
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x5263
1371C	A Cookie for You greedy, implementation, math	1300	x20605
1371B	Magical Calendar math	1200	x19207
1371A	Magical Sticks math	800	x46479
1370C	Number Game games, math, number theory	1400	x24769
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23805
1370A	Maximum GCD greedy, implementation, math, number theory	800	x52964
1369D	TediousLee dp, graphs, greedy, math, trees	1900	x8683
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19680
1369A	FashionabLee geometry, math	800	x36778
1368F	Lamps on a Circle games, implementation, interactive, math	2600	x1051
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11953
1368B	Codeforces Subsequences brute force, constructive algorithms, greedy, math, strings	1500	x19904
1368A	C+= brute force, greedy, implementation, math	800	x39929
1367C	Social Distance constructive algorithms, greedy, math	1300	x23590
1367B	Even Array greedy, math	800	x54312
1366D	Two Divisors constructive algorithms, math, number theory	2000	x10654
1366C	Palindromic Paths greedy, math	1500	x13621
1366B	Shuffle math, two pointers	1300	x21307
1366A	Shovels and Swords binary search, greedy, math	1100	x30371
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x1176
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x4098
1363A	Odd Selection brute force, implementation, math	1200	x36303
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x18582
1361F	Johnny and New Toy data structures, implementation, math	3300	x154
1361D	Johnny and James greedy, implementation, math, trees	2900	x320
1361B	Johnny and Grandmaster greedy, implementation, math, sortings	1900	x3652
1360G	A/B Matrix constructive algorithms, greedy, math	1900	x7844
1360D	Buying Shovels math, number theory	1300	x33702
1360A	Minimal Square greedy, math	800	x51195
1359F	RC Kaboom Show binary search, brute force, data structures, geometry, math	2900	x544
1359E	Modular Stability combinatorics, math, number theory	2000	x6158
1359C	Mixing Water binary search, math	1700	x13932
1359A	Berland Poker brute force, greedy, math	1000	x29820
1358C	Celex Update math	1600	x17460
1358A	Park Lighting greedy, math	800	x39740
1355E	Restorer Distance binary search, greedy, math, sortings, ternary search	2100	x5195
1355D	Game With Array constructive algorithms, math	1400	x18133
1355C	Count Triangles binary search, implementation, math, two pointers	1800	x10738
1355A	Sequence with Digits brute force, implementation, math	1200	x26782
1354C2	Not So Simple Polygon Embedding binary search, brute force, geometry, math	2000	x6111
1354C1	Simple Polygon Embedding binary search, geometry, math, ternary search	1400	x15737
1354A	Alarm Clock math	900	x23870
1353C	Board Moves math	1000	x35704
1353A	Most Unstable Array constructive algorithms, greedy, math	800	x41207
1352F	Binary String Reconstruction constructive algorithms, dfs and similar, math	1500	x17312
1352C	K-th Not Divisible by n binary search, math	1200	x55781