Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
23:16:45
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binary search

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Problems

#	Name
1408D	Searchlights binary search, brute force, data structures, dp, implementation, sortings, two pointers	2000	x4155
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x4127
68B	Energy exchange binary search	1600	x4116
514D	R2D2 and Droid Army binary search, data structures, two pointers	2000	x4105
1516D	Cut binary search, data structures, dp, graphs, number theory, two pointers	2100	x4084
1514D	Cut and Stick binary search, data structures, greedy, implementation, sortings	2000	x4082
772A	Voltage Keepsake binary search, math	1800	x4068
1250L	Divide The Students binary search, greedy, math	1500	x4015
1650E	Rescheduling the Exam binary search, data structures, greedy, implementation, math, sortings	1900	x4005
1082E	Increasing Frequency binary search, dp, greedy	2000	x4002
483B	Friends and Presents binary search, math	1800	x3986
1366E	Two Arrays binary search, brute force, combinatorics, constructive algorithms, dp, two pointers	2100	x3952
761D	Dasha and Very Difficult Problem binary search, brute force, constructive algorithms, greedy, sortings	1700	x3941
1322B	Present binary search, bitmasks, constructive algorithms, data structures, math, sortings	2100	x3910
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x3903
729C	Road to Cinema binary search, greedy, sortings	1700	x3835
1508B	Almost Sorted binary search, combinatorics, constructive algorithms, implementation	1800	x3825
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x3824
758C	Unfair Poll binary search, constructive algorithms, implementation, math	1700	x3817
1454F	Array Partition binary search, data structures, greedy, two pointers	2100	x3792
1626D	Martial Arts Tournament binary search, brute force, greedy, math	2100	x3785
1237D	Balanced Playlist binary search, data structures, implementation	2000	x3780
363D	Renting Bikes binary search, greedy	1800	x3740
1788D	Moving Dots binary search, brute force, combinatorics, math, two pointers	2000	x3716
535C	Tavas and Karafs binary search, greedy, math	1900	x3702
1891D	Suspicious logarithms binary search, brute force, math	1900	x3686
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x3681
1551E	Fixed Points binary search, brute force, dp	2000	x3674
487A	Fight the Monster binary search, brute force, implementation	1800	x3654
1827B1	Range Sorting (Easy Version) binary search, dp, dsu, greedy, trees, two pointers	2000	x3646
1575J	Jeopardy of Dropped Balls binary search, brute force, dsu, implementation	1500	x3641
1902D	Robot Queries binary search, data structures, dp, implementation	1900	x3638
1260D	A Game with Traps binary search, dp, greedy, sortings	1900	x3580
1582E	Pchelyonok and Segments binary search, data structures, dp, greedy, math	2000	x3577
799C	Fountains binary search, data structures, implementation	1800	x3570
940D	Alena And The Heater binary search, implementation	1600	x3562
321A	Ciel and Robot binary search, implementation, math	1700	x3549
111B	Petya and Divisors binary search, data structures, number theory	1900	x3535
471C	MUH and House of Cards binary search, brute force, greedy, math	1700	x3533
1584D	Guess the Permutation binary search, combinatorics, interactive, math	2000	x3517
1428E	Carrots for Rabbits binary search, data structures, greedy, math, sortings	2200	x3499
1015E2	Stars Drawing (Hard Edition) binary search, dp, greedy	1900	x3460
551C	GukiZ hates Boxes binary search, greedy	2200	x3438
895B	XK Segments binary search, math, sortings, two pointers	1700	x3416
1446C	Xor Tree binary search, bitmasks, data structures, divide and conquer, dp, trees	2100	x3385
1216E1	Numerical Sequence (easy version) binary search, brute force, math	1900	x3358
925A	Stairs and Elevators binary search	1600	x3354
487B	Strip binary search, data structures, dp, two pointers	2000	x3347
896A	Nephren gives a riddle binary search, dfs and similar	1700	x3335
1437E	Make It Increasing binary search, constructive algorithms, data structures, dp, implementation	2200	x3320
650B	Image Preview binary search, brute force, dp, two pointers	1900	x3307
756B	Travel Card binary search, dp	1600	x3299
938C	Constructing Tests binary search, brute force, constructive algorithms	1700	x3274
985E	Pencils and Boxes binary search, data structures, dp, greedy, two pointers	2100	x3243
1690G	Count the Trains binary search, data structures, greedy, sortings	2000	x3222
842D	Vitya and Strange Lesson binary search, data structures	2000	x3212
1801C	Music Festival binary search, data structures, dp, greedy, sortings	1900	x3203
1503C	Travelling Salesman Problem binary search, data structures, dp, greedy, shortest paths, sortings, two pointers	2200	x3195
1637E	Best Pair binary search, brute force, implementation	2100	x3178
613A	Peter and Snow Blower binary search, geometry, ternary search	1900	x3178
825D	Suitable Replacement binary search, greedy, implementation	1500	x3175
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x3169
1624F	Interacdive Problem binary search, constructive algorithms, interactive	2000	x3167
645C	Enduring Exodus binary search, two pointers	1600	x3151
700A	As Fast As Possible binary search, math	1900	x3143
492D	Vanya and Computer Game binary search, implementation, math, sortings	1800	x3116
1271E	Common Number binary search, combinatorics, dp, math	2100	x3111
225B	Well-known Numbers binary search, greedy, number theory	1600	x3098
474E	Pillars binary search, data structures, dp, sortings, trees	2000	x3095
722D	Generating Sets binary search, data structures, dfs and similar, greedy, strings, trees	1900	x3082
803D	Magazine Ad binary search, greedy	1900	x3061
689D	Friends and Subsequences binary search, data structures	2100	x3055
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3031
939E	Maximize! binary search, greedy, ternary search, two pointers	1800	x3005
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x2989
496D	Tennis Game binary search	1900	x2977
671B	Robin Hood binary search, greedy	2000	x2967
965D	Single-use Stones binary search, flows, greedy, two pointers	1900	x2957
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x2947
159C	String Manipulation 1.0 *special problem, binary search, brute force, data structures, strings	1400	x2915
1284D	New Year and Conference binary search, data structures, hashing, sortings	2100	x2911
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x2908
343C	Read Time binary search, greedy, two pointers	1900	x2896
595B	Pasha and Phone binary search, math	1600	x2894
1520F2	Guess the K-th Zero (Hard version) binary search, constructive algorithms, data structures, interactive	2200	x2888
181B	Number of Triplets binary search, brute force	1300	x2883
1250J	The Parade binary search, greedy	1800	x2846
1044A	The Tower is Going Home binary search, two pointers	1700	x2846
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x2789
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x2789
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2783
1552F	Telepanting binary search, data structures, dp, sortings	2200	x2778
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x2771
645D	Robot Rapping Results Report binary search, dp, graphs	1800	x2758
525E	Anya and Cubes binary search, bitmasks, brute force, dp, math, meet-in-the-middle	2100	x2723
847E	Packmen binary search, dp	1800	x2714
360B	Levko and Array binary search, dp	2000	x2698
1887B	Time Travel binary search, graphs, shortest paths	1900	x2662
715B	Complete The Graph binary search, constructive algorithms, graphs, shortest paths	2300	x2656
380A	Sereja and Prefixes binary search, brute force	1600	x2648