Problemset - Codeforces

→ Pay attention

Contest is running
2023 Post World Finals Online ICPC Challenge powered by Huawei
13 days
Register now »

Before contest
Kotlin Heroes: Practice 10
08:00:45
Register now »

→ Filter Problems

Difficulty: —

sortings

Add tag

Problems

#	Name
1427B	Chess Cheater greedy, implementation, sortings	1400	x10694
1427A	Avoiding Zero math, sortings	900	x16829
1426D	Non-zero Segments constructive algorithms, data structures, greedy, sortings	1500	x15468
1424M	Ancient Language graphs, sortings	2200	x521
1424G	Years data structures, sortings	1300	x5642
1422D	Returning Home graphs, shortest paths, sortings	2300	x2589
1420D	Rescue Nibel! combinatorics, data structures, sortings	1800	x7321
1420A	Cubes Sorting math, sortings	900	x22833
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x14730
1419D1	Sage's Birthday (easy version) binary search, constructive algorithms, greedy, sortings	1000	x23586
1418B	Negative Prefixes greedy, sortings	1300	x16282
1417B	Two Arrays greedy, math, sortings	1100	x14328
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4177
1413C	Perform Easily binary search, brute force, dp, implementation, sortings, two pointers	1900	x5531
1409E	Two Platforms binary search, dp, sortings, two pointers	1800	x7549
1408E	Avoid Rainbow Cycles data structures, dsu, graphs, greedy, sortings, trees	2400	x1875
1408D	Searchlights binary search, brute force, data structures, dp, implementation, sortings, two pointers	2000	x4163
1406B	Maximum Product brute force, dp, greedy, implementation, sortings	1200	x22033
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x286
1402B	Roads *special problem, geometry, sortings	2900	x102
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x1138
1401E	Divide Square data structures, geometry, implementation, sortings	2400	x2166
1401D	Maximum Distributed Tree dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees	1800	x8858
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x23428
1399F	Yet Another Segments Subset data structures, dp, graphs, sortings	2300	x1557
1399E2	Weights Division (hard version) binary search, dfs and similar, greedy, sortings, trees, two pointers	2200	x2212
1399A	Remove Smallest greedy, sortings	800	x62730
1398E	Two Types of Spells binary search, data structures, greedy, implementation, math, sortings	2200	x2175
1398D	Colored Rectangles dp, greedy, sortings	1800	x10990
1398B	Substring Removal Game games, greedy, sortings	800	x24062
1397B	Power Sequence brute force, math, number theory, sortings	1500	x14351
1396D	Rainbow Rectangles data structures, sortings, two pointers	3300	x297
1394D	Boboniu and Jianghu dp, greedy, sortings, trees	2800	x804
1394A	Boboniu Chats with Du dp, greedy, sortings, two pointers	1800	x6450
1393C	Pinkie Pie Eats Patty-cakes constructive algorithms, greedy, math, sortings	1700	x10255
1389F	Bicolored Segments data structures, dp, graph matchings, sortings	2600	x946
1388E	Uncle Bogdan and Projections data structures, geometry, sortings	2700	x398
1386B	Mixture *special problem, data structures, geometry, math, sortings	2900	x118
1383D	Rearrange brute force, constructive algorithms, graphs, greedy, sortings	2800	x639
1383A	String Transformation 1 dsu, graphs, greedy, sortings, strings, trees, two pointers	1700	x10231
1381E	Origami geometry, math, sortings	3300	x100
1381C	Mastermind constructive algorithms, graph matchings, greedy, implementation, sortings, two pointers	2500	x1389
1380C	Create The Teams brute force, dp, greedy, implementation, sortings	1400	x19876
1379D	New Passenger Trams binary search, brute force, data structures, sortings, two pointers	2300	x1059
1379C	Choosing flowers binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers	2000	x5412
1375E	Inversion SwapSort constructive algorithms, greedy, sortings	2500	x2774
1375D	Replace by MEX brute force, constructive algorithms, sortings	1900	x8727
1374F	Cyclic Shifts Sorting brute force, constructive algorithms, implementation, sortings	2400	x1258
1374E2	Reading Books (hard version) data structures, greedy, implementation, sortings, ternary search, two pointers	2500	x901
1374E1	Reading Books (easy version) data structures, greedy, sortings	1600	x13512
1374D	Zero Remainder Array math, sortings, two pointers	1400	x22188
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2294
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4950
1369E	DeadLee data structures, dfs and similar, greedy, implementation, sortings	2400	x2017
1369C	RationalLee greedy, math, sortings, two pointers	1400	x19029
1367F2	Flying Sort (Hard Version) binary search, data structures, dp, greedy, sortings, two pointers	2400	x1441
1367D	Task On The Board constructive algorithms, greedy, implementation, sortings	1800	x7967
1365F	Swaps Again constructive algorithms, implementation, sortings	2100	x4306
1361B	Johnny and Grandmaster greedy, implementation, math, sortings	1900	x3387
1361A	Johnny and Contribution constructive algorithms, graphs, greedy, sortings	1700	x8149
1360C	Similar Pairs constructive algorithms, graph matchings, greedy, sortings	1100	x31686
1360B	Honest Coach greedy, sortings	800	x46058
1358B	Maria Breaks the Self-isolation greedy, sortings	1000	x24603
1355E	Restorer Distance binary search, greedy, math, sortings, ternary search	2100	x4718
1355B	Young Explorers dp, greedy, sortings	1200	x24867
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x977
1353D	Constructing the Array constructive algorithms, data structures, sortings	1600	x17330
1353B	Two Arrays And Swaps greedy, sortings	800	x47522
1348C	Phoenix and Distribution constructive algorithms, greedy, sortings, strings	1600	x14184
1348B	Phoenix and Beauty constructive algorithms, data structures, greedy, sortings	1400	x24533
1346C	Spring Cleaning *special problem, greedy, sortings	1600	x579
1344A	Hilbert's Hotel math, number theory, sortings	1600	x15181
1343E	Weights Distributing brute force, graphs, greedy, shortest paths, sortings	2100	x4810
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x5830
1339B	Sorted Adjacent Differences constructive algorithms, sortings	1200	x25549
1336B	Xenia and Colorful Gems binary search, greedy, math, sortings, two pointers	1700	x10977
1336A	Linova and Kingdom dfs and similar, dp, greedy, sortings, trees	1600	x19303
1335C	Two Teams Composing binary search, greedy, implementation, sortings	1100	x33244
1334B	Middle Class greedy, sortings	1100	x25164
1333F	Kate and imperfection greedy, implementation, math, number theory, sortings, two pointers	2200	x3921
1333D	Challenges in school №41 brute force, constructive algorithms, games, graphs, greedy, implementation, sortings	2100	x3642
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x26729
1322B	Present binary search, bitmasks, constructive algorithms, data structures, math, sortings	2100	x3944
1320C	World of Darkraft: Battle for Azathoth brute force, data structures, sortings	2000	x2900
1320A	Journey Planning data structures, dp, greedy, math, sortings	1400	x15440
1316E	Team Building bitmasks, dp, greedy, sortings	2300	x3468
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x10989
1312B	Bogosort constructive algorithms, sortings	1000	x24653
1311F	Moving Points data structures, divide and conquer, implementation, sortings	1900	x3939
1311B	WeirdSort dfs and similar, sortings	1200	x18484
1310A	Recommendations data structures, greedy, sortings	1700	x4970
1307D	Cow and Fields binary search, data structures, dfs and similar, graphs, greedy, shortest paths, sortings	1900	x6025
1305A	Kuroni and the Gifts brute force, constructive algorithms, greedy, sortings	800	x13782
1304C	Air Conditioner dp, greedy, implementation, sortings, two pointers	1500	x15763
1300B	Assigning to Classes greedy, implementation, sortings	1000	x22225
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	x2672
1296E1	String Coloring (easy version) constructive algorithms, dp, graphs, greedy, sortings	1800	x7096