Problemset - Codeforces

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Codeforces Round 977 (Div. 2)
2 days
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Problems

#	Name
899F	Letters Removing data structures, strings	2100	x1839
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2000	x3038
899D	Shovel Sale constructive algorithms, math	1800	x2755
899C	Dividing the numbers constructive algorithms, graphs, math	1300	x8456
899B	Months and Years implementation	1200	x5880
899A	Splitting in Teams constructive algorithms, greedy, math	800	x10214
898F	Restoring the Expression brute force, hashing, math	2300	x1189
898E	Squares and not squares constructive algorithms, greedy	1600	x4583
898D	Alarm Clock greedy	1600	x3898
898C	Phone Numbers implementation, strings	1400	x5279
898B	Proper Nutrition brute force, implementation, number theory	1100	x9566
898A	Rounding implementation, math	800	x16111
897B	Chtholly's request brute force	1300	x7174
897A	Scarborough Fair implementation	800	x14169
896E	Welcome home, Chtholly data structures, dsu	3100	x2129
896D	Nephren Runs a Cinema chinese remainder theorem, combinatorics, math, number theory	2900	x529
896C	Willem, Chtholly and Seniorious data structures, probabilities	2600	x3417
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x2121
896A	Nephren gives a riddle binary search, dfs and similar	1700	x3449
895E	Eyes Closed data structures, probabilities	2300	x1106
895D	String Mark combinatorics, math, strings	2100	x1109
895C	Square Subsets bitmasks, combinatorics, dp, math	2000	x5512
895B	XK Segments binary search, math, sortings, two pointers	1700	x3538
895A	Pizza Separation brute force, implementation	1200	x6539
894E	Ralph and Mushrooms dp, graphs	2100	x2318
894D	Ralph And His Tour in Binary Country brute force, data structures, trees	2200	x1128
894C	Marco and GCD Sequence constructive algorithms, math	1900	x4366
894B	Ralph And His Magic Field combinatorics, constructive algorithms, math, number theory	1800	x4464
894A	QAQ brute force, dp	800	x34245
893F	Subtree Minimum Query data structures, trees	2300	x1986
893E	Counting Arrays combinatorics, dp, math, number theory	2000	x3643
893D	Credit Card data structures, dp, greedy, implementation	1900	x3036
893C	Rumor dfs and similar, graphs, greedy	1300	x23037
893B	Beautiful Divisors brute force, implementation	1000	x11356
893A	Chess For Three implementation	900	x10196
892B	Wrath greedy, implementation, two pointers	1200	x8976
892A	Greed greedy, implementation	900	x13447
891E	Lust combinatorics, math, matrices	3000	x930
891D	Sloth dfs and similar, dp, graph matchings, trees	3100	x191
891C	Envy data structures, dsu, graphs	2300	x2371
891B	Gluttony constructive algorithms, greedy	2000	x2990
891A	Pride brute force, dp, greedy, math, number theory	1500	x10150
889E	Mod Mod Mod binary search, dp, math	3000	x550
888G	Xor-MST bitmasks, constructive algorithms, data structures	2300	x4492
888F	Connecting Vertices dp, graphs	2500	x814
888E	Maximum Subsequence bitmasks, divide and conquer, meet-in-the-middle	1800	x7229
888D	Almost Identity Permutations combinatorics, dp, math	1600	x8308
888C	K-Dominant Character binary search, implementation, two pointers	1400	x8224
888B	Buggy Robot greedy	1000	x9725
888A	Local Extrema brute force, implementation	800	x10927
887F	Row of Models greedy, sortings	2500	x165
887E	Little Brother binary search, geometry, sortings	2800	x163
887D	Ratings and Reality Shows data structures, two pointers	2400	x478
887C	Solution for Cube brute force, implementation	1500	x2892
887B	Cubes for Masha brute force, implementation	1300	x5625
887A	Div. 64 implementation	1000	x11250
886F	Symmetric Projections geometry	2900	x267
886E	Maximum Element combinatorics, dp, math	2400	x1017
886D	Restoration of string constructive algorithms, graphs, implementation	2000	x1799
886C	Petya and Catacombs dsu, greedy, implementation, trees	1300	x5474
886B	Vlad and Cafes	1000	x7890
886A	ACM ICPC brute force	1000	x10278
884F	Anti-Palindromize flows, graphs, greedy	2500	x1062
884E	Binary Matrix dsu	2500	x684
884D	Boxes And Balls data structures, greedy	2300	x1998
884C	Bertown Subway dfs and similar, greedy, math	1500	x4705
884B	Japanese Crosswords Strike Back implementation	1100	x6871
884A	Book Reading implementation	800	x10461
883M	Quadcopter Competition greedy, math	1100	x3586
883L	Berland.Taxi data structures	2500	x232
883K	Road Widening constructive algorithms, greedy, implementation	1800	x1096
883J	Renovation constructive algorithms, greedy, sortings	2400	x576
883I	Photo Processing binary search, dp	1900	x1958
883H	Palindromic Cut brute force, implementation, strings	1800	x1614
883G	Orientation of Edges dfs and similar, graphs	1900	x1410
883F	Lost in Transliteration implementation	1300	x2268
883E	Field of Wonders implementation, strings	1500	x1898
883D	Packmen Strike Back binary search, dp, math	2500	x372
883C	Downloading B++ binary search, implementation	2300	x627
883B	Berland Army constructive algorithms, graphs, greedy	2600	x370
883A	Automatic Door implementation	2200	x590
879B	Table Tennis data structures, implementation	1200	x12367
879A	Borya's Diagnosis implementation	900	x9077
878E	Numbers on the blackboard combinatorics, dp	3300	x548
878D	Magic Breeding bitmasks	2900	x673
878C	Tournament data structures, graphs	2700	x923
878B	Teams Formation data structures, implementation	2300	x1059
878A	Short Program bitmasks, constructive algorithms	1600	x5474
877F	Ann and Books data structures, flows, hashing	2300	x1792
877E	Danil and a Part-time Job bitmasks, data structures, trees	2000	x4485
877D	Olya and Energy Drinks data structures, dfs and similar, graphs, shortest paths	2100	x4327
877C	Slava and tanks constructive algorithms	1600	x5680
877B	Nikita and string brute force, dp	1500	x10415
877A	Alex and broken contest implementation, strings	1100	x10869
876B	Divisiblity of Differences implementation, math, number theory	1300	x9139
876A	Trip For Meal math	900	x9359
875F	Royal Questions dsu, graphs, greedy	2500	x1328
875E	Delivery Club binary search, data structures, dp	2600	x908
875D	High Cry binary search, bitmasks, combinatorics, data structures, divide and conquer	2200	x2244
875C	National Property 2-sat, dfs and similar, graphs, implementation	2100	x2123