Problemset - Codeforces

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Codeforces Round 977 (Div. 2)
3 days
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Problems

#	Name
1092D2	Great Vova Wall (Version 2) data structures, implementation	2200	x2983
1092D1	Great Vova Wall (Version 1) greedy, implementation, math	2200	x4744
1092C	Prefixes and Suffixes strings	1700	x5926
1092B	Teams Forming sortings	800	x26276
1092A	Uniform String implementation	800	x16246
1091H	New Year and the Tricolore Recreation games	3200	x430
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x209
1091F	New Year and the Mallard Expedition constructive algorithms, greedy	2600	x823
1091E	New Year and the Acquaintance Estimation binary search, data structures, graphs, greedy, implementation, math, sortings	2400	x1008
1091D	New Year and the Permutation Concatenation combinatorics, dp, math	1700	x6762
1091C	New Year and the Sphere Transmission math, number theory	1400	x10007
1091B	New Year and the Treasure Geolocation brute force, constructive algorithms, greedy, implementation	1200	x10658
1091A	New Year and the Christmas Ornament brute force, implementation, math	800	x17488
1090M	The Pleasant Walk implementation	1000	x6267
1090L	Berland University greedy, math	2000	x1259
1090K	Right Expansion Of The Mind math	2000	x1062
1090J	Two Prefixes strings	2600	x438
1090I	Minimal Product	2000	x1040
1090H	Linearization graphs	2900	x93
1090G	Combostone games, implementation	2500	x105
1090F	How to Learn You Score constructive algorithms, interactive	2600	x317
1090E	Horseback Riding flows, graphs	2300	x588
1090D	Similar Arrays constructive algorithms	1800	x2057
1090C	New Year Presents constructive algorithms, data structures	2400	x493
1090B	LaTeX Expert	1900	x1394
1090A	Company Merging greedy	1300	x4162
1089M	Minegraphed constructive algorithms, graphs	2400	x588
1089L	Lazyland	900	x3928
1089K	King Kog's Reception data structures	2400	x1095
1089J	JS Minification greedy, implementation	3200	x129
1089I	Interval-Free Permutations combinatorics	2600	x375
1089H	Harder Satisfiability 2-sat, dfs and similar, graphs	3400	x111
1089G	Guest Student math	1500	x2892
1089F	Fractions math	1900	x1933
1089E	Easy Chess constructive algorithms	1700	x1971
1089D	Distance Sum graphs	3100	x100
1089C	Cactus Search interactive	2500	x407
1089B	Bimatching graphs	3200	x220
1089A	Alice the Fan dp	2200	x1122
1088F	Ehab and a weird weight formula data structures, trees	2800	x514
1088E	Ehab and a component choosing problem dp, greedy, math, trees	2400	x1481
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x2836
1088C	Ehab and a 2-operation task constructive algorithms, greedy, math	1400	x8060
1088B	Ehab and subtraction implementation, sortings	1000	x12593
1088A	Ehab and another construction problem brute force, constructive algorithms	800	x16796
1086F	Forest Fires math	3500	x240
1085G	Beautiful Matrix combinatorics, data structures, dp	2900	x522
1085F	Rock-Paper-Scissors Champion	2500	x613
1085E	Vasya and Templates greedy, implementation, strings	2300	x1062
1085D	Minimum Diameter Tree constructive algorithms, implementation, trees	1700	x5430
1085C	Connect Three implementation, math	1600	x5435
1085B	Div Times Mod math	1100	x9288
1085A	Right-Left Cipher implementation, strings	800	x12152
1084C	The Fair Nut and String combinatorics, dp, implementation	1500	x8079
1084B	Kvass and the Fair Nut greedy, implementation	1200	x7807
1084A	The Fair Nut and Elevator brute force, implementation	1000	x7920
1083F	The Fair Nut and Amusing Xor data structures	3300	x276
1083E	The Fair Nut and Rectangles data structures, dp, geometry	2400	x4220
1083D	The Fair Nut's getting crazy data structures, implementation	3500	x236
1083C	Max Mex data structures, trees	2900	x892
1083B	The Fair Nut and Strings greedy, strings	2000	x1945
1083A	The Fair Nut and the Best Path data structures, dp, trees	1800	x5416
1082G	Petya and Graph flows, graphs	2400	x2097
1082F	Speed Dial dp, strings, trees	2800	x421
1082E	Increasing Frequency binary search, dp, greedy	2000	x4504
1082D	Maximum Diameter Graph constructive algorithms, graphs, implementation	1800	x3805
1082C	Multi-Subject Competition greedy, sortings	1600	x5718
1082B	Vova and Trophies greedy	1600	x7566
1082A	Vasya and Book implementation, math	1200	x8556
1081H	Palindromic Magic data structures, hashing, strings	3500	x105
1081G	Mergesort Strikes Back math, probabilities	3200	x364
1081F	Tricky Interactor constructive algorithms, implementation, interactive	2600	x468
1081E	Missing Numbers binary search, constructive algorithms, greedy, math, number theory	1900	x2588
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x4052
1081C	Colorful Bricks combinatorics, dp, math	1500	x7273
1081B	Farewell Party constructive algorithms, implementation	1500	x4453
1081A	Definite Game constructive algorithms, math	800	x12030
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x706
1080E	Sonya and Matrix Beauty strings	2400	x1113
1080D	Olya and magical square constructive algorithms, implementation, math	2000	x1546
1080C	Masha and two friends implementation	1500	x4041
1080B	Margarite and the best present math	900	x11776
1080A	Petya and Origami math	800	x18079
1078E	Negative Time Summation constructive algorithms	3400	x88
1077F2	Pictures with Kittens (hard version) data structures, dp	2100	x3302
1077F1	Pictures with Kittens (easy version) dp	1900	x4410
1077E	Thematic Contests greedy, sortings	1800	x4682
1077D	Cutting Out binary search, sortings	1600	x8881
1077C	Good Array	1300	x17247
1077B	Disturbed People greedy	1000	x18971
1077A	Frog Jumping math	800	x29946
1076G	Array Game data structures, games	3000	x579
1076F	Summer Practice Report dp, greedy	2500	x642
1076E	Vasya and a Tree data structures, trees	1900	x3749
1076D	Edge Deletion graphs, greedy, shortest paths	1800	x5196
1076C	Meme Problem binary search, math	1300	x12449
1076B	Divisor Subtraction implementation, math, number theory	1200	x12954
1076A	Minimizing the String greedy, strings	1200	x13115
1075B	Taxi drivers and Lyft implementation, sortings	1200	x4246
1075A	The King's Race implementation, math	800	x8525