Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
11:59:03
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Problems

#	Name
659E	New Reform data structures, dfs and similar, dsu, graphs, greedy	1600	x7443
653E	Bear and Forgotten Tree 2 dfs and similar, dsu, graphs, trees	2400	x1483
653D	Delivery Bears binary search, flows, graphs	2200	x2393
652E	Pursuit For Artifacts dfs and similar, dsu, graphs, trees	2300	x2114
650C	Table Compression dfs and similar, dp, dsu, graphs, greedy	2200	x1969
648E	Собери число graphs, shortest paths	2300	x127
648C	Путь Робота constructive algorithms, dfs and similar, graphs	1100	x934
645D	Robot Rapping Results Report binary search, dp, graphs	1800	x2871
643B	Bear and Two Paths constructive algorithms, graphs	1600	x3163
639F	Bear and Chemistry data structures, dfs and similar, graphs, trees	3300	x418
639B	Bear and Forgotten Tree 3 constructive algorithms, graphs, trees	1600	x6495
638D	Three-dimensional Turtle Super Computer brute force, dfs and similar, graphs	1800	x708
638C	Road Improvement *special problem, dfs and similar, graphs, greedy, trees	1800	x1614
633F	The Chocolate Spree dfs and similar, dp, graphs, trees	2600	x963
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x1074
628F	Bear and Fair Set flows, graphs	2500	x757
627F	Island Puzzle dfs and similar, dsu, graphs, trees	3400	x237
627D	Preorder Test binary search, dfs and similar, dp, graphs, greedy, trees	2600	x861
623A	Graph and String constructive algorithms, graphs	1800	x4465
615B	Longtail Hedgehog dp, graphs	1600	x5047
613D	Kingdom and its Cities dfs and similar, divide and conquer, dp, graphs, sortings, trees	2800	x2917
612E	Square Root of Permutation combinatorics, constructive algorithms, dfs and similar, graphs, math	2200	x1678
611H	New Year and Forgotten Tree constructive algorithms, flows, graphs	3200	x581
609E	Minimum spanning tree for each edge data structures, dfs and similar, dsu, graphs, trees	2100	x7694
605B	Lazy Student constructive algorithms, data structures, graphs	1700	x3439
601A	The Two Routes graphs, shortest paths	1600	x11864
600F	Edge coloring of bipartite graph graphs	2800	x778
598D	Igor In the Museum dfs and similar, graphs, shortest paths	1700	x10944
596E	Wilbur and Strings dfs and similar, dp, graphs, strings	2500	x392
593D	Happy Tree Party data structures, dfs and similar, graphs, math, trees	2400	x1238
592D	Super M dfs and similar, dp, graphs, trees	2200	x2618
590C	Three States dfs and similar, graphs, shortest paths	2200	x2758
585B	Phillip and Trains dfs and similar, graphs, shortest paths	1700	x3519
580C	Kefa and Park dfs and similar, graphs, trees	1500	x42559
575B	Bribes dfs and similar, graphs, trees	2200	x1063
574B	Bear and Three Musketeers brute force, dfs and similar, graphs, hashing	1500	x7765
571C	CNF 2 constructive algorithms, dfs and similar, graphs, greedy	2500	x666
570D	Tree Requests binary search, bitmasks, constructive algorithms, dfs and similar, graphs, trees	2200	x7079
567E	President and Roads dfs and similar, graphs, hashing, shortest paths	2200	x1734
558C	Amr and Chemistry brute force, graphs, greedy, math, shortest paths	1900	x3977
557E	Ann and Half-Palindrome data structures, dp, graphs, string suffix structures, strings, trees	2300	x1078
557D	Vitaly and Cycle combinatorics, dfs and similar, graphs, math	2000	x2195
555E	Case of Computer Network dfs and similar, graphs, trees	2800	x2364
553E	Kyoya and Train dp, fft, graphs, math, probabilities	3200	x553
553D	Nudist Beach binary search, graphs, greedy	2300	x994
553C	Love Triangles dfs and similar, dsu, graphs	2200	x1776
550D	Regular Bridge constructive algorithms, graphs, implementation	1900	x3329
549B	Looksery Party constructive algorithms, dfs and similar, graphs, greedy	2300	x1491
547D	Mike and Fish constructive algorithms, dfs and similar, graphs	2600	x2563
546E	Soldier and Traveling flows, graphs, math	2100	x3566
545E	Paths and Trees graphs, greedy, shortest paths	2000	x4606
543B	Destroying Roads constructive algorithms, graphs, shortest paths	2100	x4088
542E	Playing on Graph graphs, shortest paths	2600	x825
542C	Idempotent functions constructive algorithms, graphs, math	2000	x1116
533B	Work Group dfs and similar, dp, graphs, strings, trees	2000	x2372
527E	Data Center Drama dfs and similar, graphs	2600	x1977
525D	Arthur and Walls constructive algorithms, data structures, graphs, greedy, shortest paths	2400	x1758
522A	Reposts *special problem, dfs and similar, dp, graphs, trees	1200	x16227
521E	Cycling City dfs and similar, graphs	3100	x999
520B	Two Buttons dfs and similar, graphs, greedy, implementation, math, shortest paths	1400	x50566
510C	Fox And Names dfs and similar, graphs, sortings	1600	x16121
508D	Tanya and Password dfs and similar, graphs	2500	x3381
507E	Breaking Good dfs and similar, dp, graphs, shortest paths	2100	x2849
506D	Mr. Kitayuta's Colorful Graph brute force, dfs and similar, dsu, graphs	2400	x2122
505B	Mr. Kitayuta's Colorful Graph dfs and similar, dp, dsu, graphs	1400	x12858
500D	New Year Santa Network combinatorics, dfs and similar, graphs, trees	1900	x3111
500B	New Year Permutation dfs and similar, dsu, graphs, greedy, math, sortings	1600	x8853
500A	New Year Transportation dfs and similar, graphs, implementation	1000	x52687
489D	Unbearable Controversy of Being brute force, combinatorics, dfs and similar, graphs	1700	x6662
487E	Tourists data structures, dfs and similar, graphs, trees	3200	x2319
480D	Parcels dp, graphs	2600	x460
475B	Strongly Connected City brute force, dfs and similar, graphs, implementation	1400	x8438
467D	Fedor and Essay dfs and similar, dp, graphs, hashing, strings	2400	x1821
466E	Information Graph dfs and similar, dsu, graphs, trees	2100	x2214
464E	The Classic Problem data structures, graphs, shortest paths	3000	x1446
463D	Gargari and Permutations dfs and similar, dp, graphs, implementation	1900	x6366
453C	Little Pony and Summer Sun Celebration constructive algorithms, dfs and similar, graphs	2200	x1629
449B	Jzzhu and Cities graphs, greedy, shortest paths	2000	x8455
441D	Valera and Swaps constructive algorithms, dsu, graphs, implementation, math, string suffix structures	2100	x1102
437C	The Child and Toy graphs, greedy, sortings	1400	x13896
436C	Dungeons and Candies dsu, graphs, greedy, trees	1800	x2623
429E	Points and Segments graphs	3000	x857
427C	Checkposts dfs and similar, graphs, two pointers	1700	x13798
420C	Bug in Code data structures, graphs, implementation, two pointers	1900	x1256
418D	Big Problems for Organizers data structures, graphs, trees	2800	x478
417C	Football constructive algorithms, graphs, implementation	1400	x4657
416E	President's Path dp, graphs, shortest paths	2500	x1448
405E	Graph Cutting dfs and similar, graphs	2300	x1389
404C	Restore Graph dfs and similar, graphs, sortings	1800	x5188
402E	Strictly Positive Matrix graphs, math	2200	x2179
402C	Searching for Graph brute force, constructive algorithms, graphs	1500	x5853
400D	Dima and Bacteria dsu, graphs, shortest paths	2000	x2896
396C	On Changing Tree data structures, graphs, trees		x1579
388B	Fox and Minimal path bitmasks, constructive algorithms, graphs, implementation, math	1900	x2467
386D	Game with Points dp, graphs, implementation, shortest paths	2100	x428
382D	Ksenia and Pawns dfs and similar, graphs, implementation, trees	2200	x669
380B	Sereja and Tree graphs, implementation	2400	x532
374C	Inna and Dima dfs and similar, dp, graphs, implementation	1900	x2733
370A	Rook, Bishop and King graphs, math, shortest paths	1100	x10143
369D	Valera and Fools dfs and similar, dp, graphs, shortest paths	2200	x1139