Problemset - Codeforces

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Codeforces Round 986 (Div. 2)
03:47:52
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Problems

#	Name
1249D2	Too Many Segments (hard version) data structures, greedy, sortings	1800	x5304
1249D1	Too Many Segments (easy version) greedy	1800	x5137
1249C2	Good Numbers (hard version) binary search, greedy, math, meet-in-the-middle	1500	x12679
1249C1	Good Numbers (easy version) brute force, greedy, implementation	1300	x15600
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x16913
1249B1	Books Exchange (easy version) dsu, math	1000	x20766
1249A	Yet Another Dividing into Teams math	800	x22418
1248D1	The World Is Just a Programming Task (Easy Version) brute force, dp, greedy, implementation	2000	x2401
1248B	Grow The Tree greedy, math, sortings	900	x16930
1248A	Integer Points geometry, math	1000	x14158
1246F	Cursor Distance	3500	x175
1245F	Daniel and Spring Cleaning bitmasks, brute force, combinatorics, dp	2300	x2008
1245E	Hyakugoku and Ladders dp, probabilities, shortest paths	2300	x1272
1245D	Shichikuji and Power Grid dsu, graphs, greedy, shortest paths, trees	1900	x7665
1245C	Constanze's Machine dp	1400	x17679
1245B	Restricted RPS constructive algorithms, dp, greedy	1200	x13875
1245A	Good ol' Numbers Coloring math, number theory	1000	x14263
1244G	Running in Pairs constructive algorithms, greedy, math	2400	x1362
1244F	Chips constructive algorithms, implementation	2300	x1544
1244E	Minimizing Difference binary search, constructive algorithms, greedy, sortings, ternary search, two pointers	2000	x5233
1244D	Paint the Tree brute force, constructive algorithms, dp, graphs, implementation, trees	1800	x7612
1244C	The Football Season brute force, math, number theory	2000	x7655
1244B	Rooms and Staircases brute force, implementation	1000	x15901
1244A	Pens and Pencils math	800	x19291
1243B2	Character Swap (Hard Version) strings	1600	x7109
1243B1	Character Swap (Easy Version) strings	1000	x14911
1243A	Maximum Square implementation	800	x15714
1242E	Planar Perimeter constructive algorithms, graphs	3200	x130
1242D	Number Discovery math	3400	x199
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1679
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x7575
1242A	Tile Painting constructive algorithms, math, number theory	1500	x12663
1240F	Football graphs	3100	x254
1239F	Swiper, no swiping! graphs, implementation	3400	x280
1239E	Turtle dp, implementation	3100	x958
1239D	Catowice City 2-sat, dfs and similar, graph matchings, graphs	2400	x2057
1239C	Queue in the Train data structures, greedy, implementation	2300	x1376
1239B	The World Is Just a Programming Task (Hard Version) implementation	2500	x1052
1239A	Ivan the Fool and the Probability Theory combinatorics, dp, math	1700	x7377
1238G	Adilbek and the Watering System data structures, greedy, sortings	2700	x410
1238F	The Maximum Subtree dfs and similar, dp, graphs, trees	2200	x1887
1238E	Keyboard Purchase bitmasks, dp	2200	x3062
1238D	AB-string binary search, combinatorics, dp, strings	1900	x6063
1238C	Standard Free2play dp, greedy, math	1600	x7444
1238B	Kill `Em All greedy, sortings	1300	x13684
1238A	Prime Subtraction math, number theory	900	x24518
1237H	Balanced Reversals constructive algorithms	3300	x373
1237G	Balanced Distribution data structures, dp, greedy	3500	x123
1237F	Balanced Domino Placements combinatorics, dp	2600	x901
1237E	Balanced Binary Search Trees dp, math	2400	x1331
1237D	Balanced Playlist binary search, data structures, implementation	2000	x4241
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x4350
1237C1	Balanced Removals (Easier) constructive algorithms, geometry, greedy	1700	x6107
1237B	Balanced Tunnel data structures, sortings, two pointers	1300	x16255
1237A	Balanced Rating Changes implementation, math	1000	x20019
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	3000	x177
1236E	Alice and the Unfair Game binary search, data structures, dp, dsu	2500	x665
1236D	Alice and the Doll brute force, data structures, greedy, implementation	2300	x1673
1236C	Labs constructive algorithms, greedy, implementation	1300	x10172
1236B	Alice and the List of Presents combinatorics, math	1500	x11126
1236A	Stones brute force, greedy, math	800	x16471
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2611
1234E	Special Permutations math	2000	x2794
1234D	Distinct Characters Queries data structures	1600	x15294
1234C	Pipes dp, implementation	1500	x12660
1234B2	Social Network (hard version) data structures, implementation	1300	x16953
1234B1	Social Network (easy version) implementation	1000	x18790
1234A	Equalize Prices Again math	800	x27894
1231E	Middle-Out constructive algorithms, greedy, strings	2200	x840
1231C	Increasing Matrix greedy	1100	x3867
1230B	Ania and Minimizing greedy, implementation	1000	x18767
1230A	Dawid and Bags of Candies brute force, implementation	800	x21671
1228F	One Node is Gone constructive algorithms, implementation, trees	2500	x438
1228E	Another Filling the Grid combinatorics, dp, math	2300	x2766
1228D	Complete Tripartite brute force, constructive algorithms, graphs, hashing, implementation	1900	x5226
1228C	Primes and Multiplication math, number theory	1700	x9055
1228B	Filling the Grid implementation, math	1400	x11554
1228A	Distinct Digits brute force, implementation	800	x21836
1227G	Not Same constructive algorithms	2600	x1038
1227F2	Wrong Answer on test 233 (Hard Version) combinatorics, math	2400	x1520
1227F1	Wrong Answer on test 233 (Easy Version) dp	2200	x1828
1227E	Arson In Berland Forest binary search, graphs, graphs, shortest paths	2200	x1492
1227D2	Optimal Subsequences (Hard Version) data structures, greedy	1800	x4405
1227D1	Optimal Subsequences (Easy Version) data structures, greedy	1600	x6447
1227C	Messy constructive algorithms	1700	x5532
1227B	Box constructive algorithms	1200	x9692
1227A	Math Problem math	1100	x9836
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x559
1225F	Tree Factory constructive algorithms, greedy, trees	2500	x886
1225E	Rock Is Push binary search, dp	2200	x1897
1225D	Power Products hashing, math, number theory	1800	x8116
1225C	p-binary bitmasks, brute force, math	1600	x9020
1225B2	TV Subscriptions (Hard Version) implementation, two pointers	1300	x10748
1225B1	TV Subscriptions (Easy Version) implementation	1000	x11935
1225A	Forgetting Things math	900	x15854
1223G	Wooden Raft binary search, math, number theory	3200	x250
1223F	Stack Exterminable Arrays data structures, divide and conquer, dp, hashing	2600	x2070
1223E	Paint the Tree dp, sortings, trees	2100	x2620
1223D	Sequence Sorting dp, greedy, two pointers	2000	x4071
1223C	Save the Nature binary search, greedy	1600	x8368