Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
4 days
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Problems

#	Name
1091C	New Year and the Sphere Transmission math, number theory	1400	x9798
1091B	New Year and the Treasure Geolocation brute force, constructive algorithms, greedy, implementation	1200	x10548
1091A	New Year and the Christmas Ornament brute force, implementation, math	800	x17336
1090M	The Pleasant Walk implementation	1000	x6023
1090L	Berland University greedy, math	2000	x1247
1090K	Right Expansion Of The Mind math	2000	x1048
1090J	Two Prefixes strings	2600	x416
1090I	Minimal Product	2000	x1024
1090H	Linearization graphs	2900	x88
1090G	Combostone games, implementation	2500	x104
1090F	How to Learn You Score constructive algorithms, interactive	2600	x299
1090E	Horseback Riding flows, graphs	2300	x573
1090D	Similar Arrays constructive algorithms	1800	x1987
1090C	New Year Presents constructive algorithms, data structures	2400	x478
1090B	LaTeX Expert	1900	x1373
1090A	Company Merging greedy	1300	x4040
1089M	Minegraphed constructive algorithms, graphs	2400	x585
1089L	Lazyland	900	x3828
1089K	King Kog's Reception data structures	2400	x1081
1089J	JS Minification greedy, implementation	3200	x120
1089I	Interval-Free Permutations combinatorics	2600	x367
1089H	Harder Satisfiability 2-sat, dfs and similar, graphs	3400	x106
1089G	Guest Student math	1500	x2850
1089F	Fractions math	1900	x1898
1089E	Easy Chess constructive algorithms	1700	x1960
1089D	Distance Sum graphs	3100	x98
1089C	Cactus Search interactive	2500	x401
1089B	Bimatching graphs	3200	x215
1089A	Alice the Fan dp	2200	x1112
1088F	Ehab and a weird weight formula data structures, trees	2800	x488
1088E	Ehab and a component choosing problem dp, greedy, math, trees	2400	x1400
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x2762
1088C	Ehab and a 2-operation task constructive algorithms, greedy, math	1400	x7940
1088B	Ehab and subtraction implementation, sortings	1000	x12366
1088A	Ehab and another construction problem brute force, constructive algorithms	800	x16438
1086F	Forest Fires math	3500	x224
1085G	Beautiful Matrix combinatorics, data structures, dp	2900	x506
1085F	Rock-Paper-Scissors Champion	2500	x575
1085E	Vasya and Templates greedy, implementation, strings	2300	x856
1085D	Minimum Diameter Tree constructive algorithms, implementation, trees	1700	x5303
1085C	Connect Three implementation, math	1600	x5364
1085B	Div Times Mod math	1100	x9172
1085A	Right-Left Cipher implementation, strings	800	x12063
1084C	The Fair Nut and String combinatorics, dp, implementation	1500	x7544
1084B	Kvass and the Fair Nut greedy, implementation	1200	x7694
1084A	The Fair Nut and Elevator brute force, implementation	1000	x7818
1083F	The Fair Nut and Amusing Xor data structures	3300	x265
1083E	The Fair Nut and Rectangles data structures, dp, geometry	2400	x3813
1083D	The Fair Nut's getting crazy data structures, implementation	3500	x226
1083C	Max Mex data structures, trees	2900	x837
1083B	The Fair Nut and Strings greedy, strings	2000	x1846
1083A	The Fair Nut and the Best Path data structures, dp, trees	1800	x5200
1082G	Petya and Graph flows, graphs	2400	x1944
1082F	Speed Dial dp, strings, trees	2800	x408
1082E	Increasing Frequency binary search, dp, greedy	2000	x4041
1082D	Maximum Diameter Graph constructive algorithms, graphs, implementation	1800	x3544
1082C	Multi-Subject Competition greedy, sortings	1600	x5507
1082B	Vova and Trophies greedy	1600	x7409
1082A	Vasya and Book implementation, math	1200	x8426
1081H	Palindromic Magic data structures, hashing, strings	3500	x99
1081G	Mergesort Strikes Back math, probabilities	3200	x340
1081F	Tricky Interactor constructive algorithms, implementation, interactive	2600	x447
1081E	Missing Numbers binary search, constructive algorithms, greedy, math, number theory	1900	x2535
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x3888
1081C	Colorful Bricks combinatorics, dp, math	1500	x7053
1081B	Farewell Party constructive algorithms, implementation	1500	x4387
1081A	Definite Game constructive algorithms, math	800	x11892
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x672
1080E	Sonya and Matrix Beauty strings	2400	x888
1080D	Olya and magical square constructive algorithms, implementation, math	2000	x1521
1080C	Masha and two friends implementation	1500	x3986
1080B	Margarite and the best present math	900	x11551
1080A	Petya and Origami math	800	x17799
1078E	Negative Time Summation constructive algorithms	3400	x86
1077F2	Pictures with Kittens (hard version) data structures, dp	2100	x2886
1077F1	Pictures with Kittens (easy version) dp	1900	x4005
1077E	Thematic Contests greedy, sortings	1800	x4357
1077D	Cutting Out binary search, sortings	1600	x8325
1077C	Good Array	1300	x15346
1077B	Disturbed People greedy	1000	x18298
1077A	Frog Jumping math	800	x29077
1076G	Array Game data structures, games	3000	x456
1076F	Summer Practice Report dp, greedy	2500	x619
1076E	Vasya and a Tree data structures, trees	1900	x3613
1076D	Edge Deletion graphs, greedy, shortest paths	1800	x4907
1076C	Meme Problem binary search, math	1300	x12098
1076B	Divisor Subtraction implementation, math, number theory	1200	x12550
1076A	Minimizing the String greedy, strings	1200	x12843
1075B	Taxi drivers and Lyft implementation, sortings	1200	x4189
1075A	The King's Race implementation, math	800	x8331
1073G	Yet Another LCP Problem data structures, string suffix structures	2600	x864
1073F	Choosing Two Paths dfs and similar, dp, greedy, trees	2500	x520
1073E	Segment Sum bitmasks, combinatorics, dp, math	2300	x2394
1073D	Berland Fair binary search, brute force, data structures, greedy	1700	x6323
1073C	Vasya and Robot binary search, two pointers	1800	x4553
1073B	Vasya and Books implementation, math	1000	x10425
1073A	Diverse Substring implementation, strings	1000	x14906
1071E	Rain Protection binary search, geometry	3500	x90
1070M	Algoland and Berland constructive algorithms, divide and conquer, geometry	3000	x64
1070L	Odd Federalization constructive algorithms	2600	x282