Problemset - Codeforces

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Problems

#	Name
1406D	Three Sequences constructive algorithms, data structures, greedy, math	2200	x3368
1406A	Subset Mex greedy, implementation, math	900	x20934
1404D	Game of Pairs constructive algorithms, dfs and similar, interactive, math, number theory	2800	x983
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x42
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x1138
1401D	Maximum Distributed Tree dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees	1800	x8853
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x23415
1401B	Ternary Sequence constructive algorithms, greedy, math	1100	x20730
1401A	Distance and Axis constructive algorithms, math	900	x26878
1400G	Mercenaries bitmasks, brute force, combinatorics, dp, dsu, math, two pointers	2600	x892
1400D	Zigzags brute force, combinatorics, data structures, math, two pointers	1900	x9787
1400B	RPG Protagonist brute force, greedy, math	1700	x10827
1398G	Running Competition bitmasks, fft, math, number theory	2600	x764
1398E	Two Types of Spells binary search, data structures, greedy, implementation, math, sortings	2200	x2173
1398C	Good Subarrays data structures, dp, math	1600	x24109
1398A	Bad Triangle geometry, math	800	x26965
1397B	Power Sequence brute force, math, number theory, sortings	1500	x14346
1395A	Boboniu Likes to Color Balls brute force, math	1000	x23424
1393C	Pinkie Pie Eats Patty-cakes constructive algorithms, greedy, math, sortings	1700	x10253
1393A	Rainbow Dash, Fluttershy and Chess Coloring greedy, math	800	x20208
1392I	Kevin and Grid fft, graphs, math	3300	x203
1392H	ZS Shuffles Cards combinatorics, dp, math, probabilities	3000	x668
1392G	Omkar and Pies bitmasks, dfs and similar, dp, math, shortest paths	2900	x442
1392F	Omkar and Landslide binary search, constructive algorithms, data structures, greedy, math	2400	x1940
1392E	Omkar and Duck bitmasks, constructive algorithms, interactive, math	2100	x3234
1392B	Omkar and Infinity Clock implementation, math	800	x18338
1392A	Omkar and Password greedy, math	800	x20164
1391C	Cyclic Permutations combinatorics, dp, graphs, math	1500	x14537
1391A	Suborrays constructive algorithms, math	800	x23994
1389E	Calendar Ambiguity math, number theory	2200	x3107
1389D	Segment Intersections brute force, greedy, implementation, math	2100	x4021
1389A	LCM Problem constructive algorithms, greedy, math, number theory	800	x38287
1388C	Uncle Bogdan and Country Happiness dfs and similar, greedy, math, trees	1800	x9337
1388B	Captain Flint and a Long Voyage greedy, math	1000	x21896
1388A	Captain Flint and Crew Recruitment brute force, greedy, math, number theory	800	x24540
1387A	Graph *special problem, binary search, dfs and similar, dp, math, ternary search	2100	x670
1386B	Mixture *special problem, data structures, geometry, math, sortings	2900	x118
1385A	Three Pairwise Maximums math	800	x37533
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4761
1381E	Origami geometry, math, sortings	3300	x100
1380G	Circular Dungeon greedy, math, probabilities	2600	x764
1380D	Berserk And Fireball constructive algorithms, greedy, implementation, math, two pointers	2000	x4615
1379E	Inverse Genealogy constructive algorithms, divide and conquer, dp, math, trees	2800	x389
1379B	Dubious Cyrpto binary search, brute force, math, number theory	1500	x12467
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x76
1375F	Integer Game constructive algorithms, games, interactive, math	2600	x1929
1375A	Sign Flipping constructive algorithms, math	1100	x18033
1374D	Zero Remainder Array math, sortings, two pointers	1400	x22166
1374B	Multiply by 2, divide by 6 math	900	x45751
1374A	Required Remainder math	800	x50532
1373C	Pluses and Minuses math	1300	x17922
1373A	Donut Shops greedy, implementation, math	1000	x25778
1372C	Omkar and Baseball constructive algorithms, math	1500	x17360
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x26111
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2293
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4947
1371C	A Cookie for You greedy, implementation, math	1300	x20161
1371B	Magical Calendar math	1200	x18997
1371A	Magical Sticks math	800	x44241
1370C	Number Game games, math, number theory	1400	x23505
1370B	GCD Compression constructive algorithms, math, number theory	1100	x23070
1370A	Maximum GCD greedy, implementation, math, number theory	800	x48655
1369D	TediousLee dp, graphs, greedy, math, trees	1900	x8259
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19021
1369A	FashionabLee geometry, math	800	x35556
1368F	Lamps on a Circle games, implementation, interactive, math	2600	x845
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11206
1368B	Codeforces Subsequences brute force, constructive algorithms, greedy, math, strings	1500	x19012
1368A	C+= brute force, greedy, implementation, math	800	x36733
1367C	Social Distance constructive algorithms, greedy, math	1300	x22583
1367B	Even Array greedy, math	800	x50179
1366D	Two Divisors constructive algorithms, math, number theory	2000	x9899
1366C	Palindromic Paths greedy, math	1500	x13139
1366B	Shuffle math, two pointers	1300	x19578
1366A	Shovels and Swords binary search, greedy, math	1100	x28923
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x916
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x3826
1363A	Odd Selection brute force, implementation, math	1200	x34337
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x17000
1361F	Johnny and New Toy data structures, implementation, math	3300	x145
1361D	Johnny and James greedy, implementation, math, trees	2900	x306
1361B	Johnny and Grandmaster greedy, implementation, math, sortings	1900	x3386
1360G	A/B Matrix constructive algorithms, greedy, math	1900	x7375
1360D	Buying Shovels math, number theory	1300	x30726
1360A	Minimal Square greedy, math	800	x47965
1359F	RC Kaboom Show binary search, brute force, data structures, geometry, math	2900	x349
1359E	Modular Stability combinatorics, math, number theory	2000	x5722
1359C	Mixing Water binary search, math	1700	x13249
1359A	Berland Poker brute force, greedy, math	1000	x28739
1358C	Celex Update math	1600	x17001
1358A	Park Lighting greedy, math	800	x38064
1355E	Restorer Distance binary search, greedy, math, sortings, ternary search	2100	x4712
1355D	Game With Array constructive algorithms, math	1400	x17412
1355C	Count Triangles binary search, implementation, math, two pointers	1800	x10185
1355A	Sequence with Digits brute force, implementation, math	1200	x25461
1354C2	Not So Simple Polygon Embedding binary search, brute force, geometry, math	2000	x5807
1354C1	Simple Polygon Embedding binary search, geometry, math, ternary search	1400	x15317
1354A	Alarm Clock math	900	x23227
1353C	Board Moves math	1000	x34170
1353A	Most Unstable Array constructive algorithms, greedy, math	800	x38940