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
1424G	Years data structures, sortings	1300	x5635
1422D	Returning Home graphs, shortest paths, sortings	2300	x2585
1420D	Rescue Nibel! combinatorics, data structures, sortings	1800	x7295
1420A	Cubes Sorting math, sortings	900	x22817
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x14651
1419D1	Sage's Birthday (easy version) binary search, constructive algorithms, greedy, sortings	1000	x23530
1418B	Negative Prefixes greedy, sortings	1300	x16260
1417B	Two Arrays greedy, math, sortings	1100	x14317
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4161
1413C	Perform Easily binary search, brute force, dp, implementation, sortings, two pointers	1900	x5525
1409E	Two Platforms binary search, dp, sortings, two pointers	1800	x7534
1408E	Avoid Rainbow Cycles data structures, dsu, graphs, greedy, sortings, trees	2400	x1874
1408D	Searchlights binary search, brute force, data structures, dp, implementation, sortings, two pointers	2000	x4154
1406B	Maximum Product brute force, dp, greedy, implementation, sortings	1200	x22003
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x283
1402B	Roads *special problem, geometry, sortings	2900	x102
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x1133
1401E	Divide Square data structures, geometry, implementation, sortings	2400	x2151
1401D	Maximum Distributed Tree dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees	1800	x8843
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x23386
1399F	Yet Another Segments Subset data structures, dp, graphs, sortings	2300	x1554
1399E2	Weights Division (hard version) binary search, dfs and similar, greedy, sortings, trees, two pointers	2200	x2206
1399A	Remove Smallest greedy, sortings	800	x62454
1398E	Two Types of Spells binary search, data structures, greedy, implementation, math, sortings	2200	x2170
1398D	Colored Rectangles dp, greedy, sortings	1800	x10969
1398B	Substring Removal Game games, greedy, sortings	800	x24040
1397B	Power Sequence brute force, math, number theory, sortings	1500	x14338
1396D	Rainbow Rectangles data structures, sortings, two pointers	3300	x295
1394D	Boboniu and Jianghu dp, greedy, sortings, trees	2800	x802
1394A	Boboniu Chats with Du dp, greedy, sortings, two pointers	1800	x6439
1393C	Pinkie Pie Eats Patty-cakes constructive algorithms, greedy, math, sortings	1700	x10247
1389F	Bicolored Segments data structures, dp, graph matchings, sortings	2600	x945
1388E	Uncle Bogdan and Projections data structures, geometry, sortings	2700	x390
1386B	Mixture *special problem, data structures, geometry, math, sortings	2900	x118
1383D	Rearrange brute force, constructive algorithms, graphs, greedy, sortings	2800	x638
1383A	String Transformation 1 dsu, graphs, greedy, sortings, strings, trees, two pointers	1700	x10222
1381E	Origami geometry, math, sortings	3300	x100
1381C	Mastermind constructive algorithms, graph matchings, greedy, implementation, sortings, two pointers	2500	x1388
1380C	Create The Teams brute force, dp, greedy, implementation, sortings	1400	x19848
1379D	New Passenger Trams binary search, brute force, data structures, sortings, two pointers	2300	x1056
1379C	Choosing flowers binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers	2000	x5396
1375E	Inversion SwapSort constructive algorithms, greedy, sortings	2500	x2764
1375D	Replace by MEX brute force, constructive algorithms, sortings	1900	x8703
1374F	Cyclic Shifts Sorting brute force, constructive algorithms, implementation, sortings	2400	x1254
1374E2	Reading Books (hard version) data structures, greedy, implementation, sortings, ternary search, two pointers	2500	x897
1374E1	Reading Books (easy version) data structures, greedy, sortings	1600	x13499
1374D	Zero Remainder Array math, sortings, two pointers	1400	x22131
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2292
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4947
1369E	DeadLee data structures, dfs and similar, greedy, implementation, sortings	2400	x2013
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19001
1367F2	Flying Sort (Hard Version) binary search, data structures, dp, greedy, sortings, two pointers	2400	x1439
1367D	Task On The Board constructive algorithms, greedy, implementation, sortings	1800	x7958
1365F	Swaps Again constructive algorithms, implementation, sortings	2100	x4300
1361B	Johnny and Grandmaster greedy, implementation, math, sortings	1900	x3384
1361A	Johnny and Contribution constructive algorithms, graphs, greedy, sortings	1700	x8140
1360C	Similar Pairs constructive algorithms, graph matchings, greedy, sortings	1100	x31623
1360B	Honest Coach greedy, sortings	800	x45901
1358B	Maria Breaks the Self-isolation greedy, sortings	1000	x24571
1355E	Restorer Distance binary search, greedy, math, sortings, ternary search	2100	x4705
1355B	Young Explorers dp, greedy, sortings	1200	x24825
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x973
1353D	Constructing the Array constructive algorithms, data structures, sortings	1600	x17304
1353B	Two Arrays And Swaps greedy, sortings	800	x47396
1348C	Phoenix and Distribution constructive algorithms, greedy, sortings, strings	1600	x14170
1348B	Phoenix and Beauty constructive algorithms, data structures, greedy, sortings	1400	x24498
1346C	Spring Cleaning *special problem, greedy, sortings	1600	x578
1344A	Hilbert's Hotel math, number theory, sortings	1600	x15169
1343E	Weights Distributing brute force, graphs, greedy, shortest paths, sortings	2100	x4800
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x5828
1339B	Sorted Adjacent Differences constructive algorithms, sortings	1200	x25506
1336B	Xenia and Colorful Gems binary search, greedy, math, sortings, two pointers	1700	x10966
1336A	Linova and Kingdom dfs and similar, dp, greedy, sortings, trees	1600	x19244
1335C	Two Teams Composing binary search, greedy, implementation, sortings	1100	x33172
1334B	Middle Class greedy, sortings	1100	x25128
1333F	Kate and imperfection greedy, implementation, math, number theory, sortings, two pointers	2200	x3906
1333D	Challenges in school №41 brute force, constructive algorithms, games, graphs, greedy, implementation, sortings	2100	x3630
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x26606
1322B	Present binary search, bitmasks, constructive algorithms, data structures, math, sortings	2100	x3889
1320C	World of Darkraft: Battle for Azathoth brute force, data structures, sortings	2000	x2882
1320A	Journey Planning data structures, dp, greedy, math, sortings	1400	x15387
1316E	Team Building bitmasks, dp, greedy, sortings	2300	x3424
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x10947
1312B	Bogosort constructive algorithms, sortings	1000	x24439
1311F	Moving Points data structures, divide and conquer, implementation, sortings	1900	x3923
1311B	WeirdSort dfs and similar, sortings	1200	x18461
1310A	Recommendations data structures, greedy, sortings	1700	x4953
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x6009
1305A	Kuroni and the Gifts brute force, constructive algorithms, greedy, sortings	800	x13755
1304C	Air Conditioner dp, greedy, implementation, sortings, two pointers	1500	x15742
1300B	Assigning to Classes greedy, implementation, sortings	1000	x22180
1297F	Movie Fan *special problem, data structures, greedy, implementation, sortings		x113
1297D	Bonus Distribution *special problem, binary search, greedy, sortings		x257
1297B	Cartoons *special problem, implementation, sortings		x407
1296F	Berland Beauty constructive algorithms, dfs and similar, greedy, sortings, trees	2100	x2667
1296E1	String Coloring (easy version) constructive algorithms, dp, graphs, greedy, sortings	1800	x7085
1296D	Fight with Monsters greedy, sortings	1500	x13846
1294B	Collecting Packages implementation, sortings	1200	x21183
1286A	Garland dp, greedy, sortings	1800	x8378
1285E	Delete a Segment brute force, constructive algorithms, data structures, dp, graphs, sortings, trees, two pointers	2300	x1659