Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)
00:14:55
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
898F	Restoring the Expression brute force, hashing, math	2300	x1143
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x2070
895E	Eyes Closed data structures, probabilities	2300	x965
895D	String Mark combinatorics, math, strings	2100	x1099
895C	Square Subsets bitmasks, combinatorics, dp, math	2000	x5267
894E	Ralph and Mushrooms dp, graphs	2100	x2219
894D	Ralph And His Tour in Binary Country brute force, data structures, trees	2200	x1115
893F	Subtree Minimum Query data structures, trees	2300	x1772
893E	Counting Arrays combinatorics, dp, math, number theory	2000	x3388
891C	Envy data structures, dsu, graphs	2300	x2303
891B	Gluttony constructive algorithms, greedy	2000	x2931
888G	Xor-MST bitmasks, constructive algorithms, data structures	2300	x4062
888F	Connecting Vertices dp, graphs	2500	x773
887F	Row of Models greedy, sortings	2500	x163
887D	Ratings and Reality Shows data structures, two pointers	2400	x474
886E	Maximum Element combinatorics, dp, math	2400	x992
886D	Restoration of string constructive algorithms, graphs, implementation	2000	x1728
884F	Anti-Palindromize flows, graphs, greedy	2500	x968
884E	Binary Matrix dsu	2500	x676
884D	Boxes And Balls data structures, greedy	2300	x1905
883L	Berland.Taxi data structures	2500	x230
883J	Renovation constructive algorithms, greedy, sortings	2400	x575
883D	Packmen Strike Back binary search, dp, math	2500	x355
883C	Downloading B++ binary search, implementation	2300	x618
883A	Automatic Door implementation	2200	x580
878B	Teams Formation data structures, implementation	2300	x1038
877F	Ann and Books data structures, flows, hashing	2300	x1690
877E	Danil and a Part-time Job bitmasks, data structures, trees	2000	x4327
877D	Olya and Energy Drinks data structures, dfs and similar, graphs, shortest paths	2100	x4238
875F	Royal Questions dsu, graphs, greedy	2500	x1295
875D	High Cry binary search, bitmasks, combinatorics, data structures, divide and conquer	2200	x2208
875C	National Property 2-sat, dfs and similar, graphs, implementation	2100	x2104
873F	Forbidden Indices dsu, string suffix structures, strings	2400	x1319
873E	Awards For Contestants brute force, data structures, dp	2300	x547
870E	Points, Lines and Ready-made Titles dfs and similar, dsu, graphs, trees	2300	x1076
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x1198
869E	The Untended Antiquity data structures, hashing	2400	x1567
868F	Yet Another Minimization Problem divide and conquer, dp	2500	x3580
868D	Huge Strings bitmasks, brute force, dp, implementation, strings	2200	x896
865D	Buy Low Sell High constructive algorithms, data structures, greedy	2400	x5065
865C	Gotta Go Fast binary search, dp	2400	x817
864E	Fire dp, sortings	2000	x4183
863F	Almost Permutation flows	2200	x1210
863E	Turn Off The TV data structures, sortings	2000	x3008
862E	Mahmoud and Ehab and the function binary search, data structures, sortings	2100	x1590
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1709
859E	Desk Disorder combinatorics, dfs and similar, dsu, graphs, trees	2100	x1841
859D	Third Month Insanity dp, probabilities, trees	2100	x1040
858F	Wizard's Tour constructive algorithms, dfs and similar, graphs	2300	x1519
858E	Tests Renumeration greedy, implementation	2200	x500
856D	Masha and Cactus dp, trees	2400	x378
856C	Eleventh Birthday combinatorics, dp, math	2400	x565
856B	Similar Words dp, hashing, strings, trees	2300	x482
855E	Salazar Slytherin's Locket bitmasks, dp	2200	x1689
855D	Rowena Ravenclaw's Diadem trees	2500	x479
855C	Helga Hufflepuff's Cup dp, trees	2000	x2024
853D	Michael and Charging Stations binary search, dp, greedy	2400	x658
853C	Boredom data structures	2100	x1416
852I	Dating brute force, dfs and similar, graphs, trees	2300	x563
852F	Product transformation combinatorics, math, number theory	2200	x565
852E	Casinos and travel dp	2100	x995
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x971
852C	Property greedy, sortings	2100	x556
852B	Neural Network country dp, matrices	2000	x1408
852A	Digits brute force, implementation, math	2500	x383
850C	Arpa and a game with Mojtaba bitmasks, dp, games	2200	x1423
850B	Arpa and a list of numbers implementation, number theory	2100	x1988
847L	Berland SU Computer Network constructive algorithms, dfs and similar, graphs, hashing, trees	2400	x316
847J	Students Initiation binary search, flows, graphs	2400	x621
847F	Berland Elections greedy, sortings	2100	x854
847D	Dog Show constructive algorithms, data structures, greedy	2200	x1155
846E	Chemistry in Berland dfs and similar, greedy, trees	2300	x868
845G	Shortest Path Problem? dfs and similar, graphs, math	2300	x1535
845F	Guards In The Storehouse bitmasks, dp	2500	x428
845E	Fire in the City binary search, data structures	2400	x586
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2207
842D	Vitya and Strange Lesson binary search, data structures	2000	x3367
842C	Ilya And The Tree dfs and similar, graphs, math, number theory, trees	2000	x3449
840D	Destiny data structures, probabilities	2500	x2885
840C	On the Bench combinatorics, dp	2500	x1677
840B	Leha and another game about graph constructive algorithms, data structures, dfs and similar, dp, graphs	2100	x2436
839D	Winter is here combinatorics, dp, math, number theory	2200	x2728
838E	Convex Countour dp	2300	x326
838B	Diverging Directions data structures, dfs and similar, trees	2100	x713
837G	Functions On The Segments data structures	2500	x658
837F	Prefix Sums binary search, brute force, combinatorics, math, matrices	2400	x794
837E	Vasya's Function binary search, implementation, math	2100	x1598
837D	Round Subset dp, math	2100	x5200
835F	Roads in the Kingdom dfs and similar, dp, graphs, trees	2500	x1031
835E	The penguin's game binary search, constructive algorithms, interactive	2400	x1138
833B	The Bakery binary search, data structures, divide and conquer, dp, two pointers	2200	x4688
832C	Strange Radiation binary search, implementation, math	2500	x428
830C	Bamboo Partition brute force, data structures, implementation, math, number theory, sortings, two pointers	2300	x1190
827C	DNA Evolution data structures, strings	2100	x1626
825G	Tree Queries dfs and similar, graphs, trees	2500	x1165
825F	String Compression dp, hashing, string suffix structures, strings	2400	x1389
825E	Minimal Labels data structures, dfs and similar, graphs, greedy	2300	x3270
822F	Madness constructive algorithms, dfs and similar, trees	2500	x290
822E	Liar binary search, dp, hashing, string suffix structures	2400	x778
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1436