Problemset - Codeforces

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Educational Codeforces Round 189 (Rated for Div. 2)
2 days
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Problems

#	Name
373B	Making Sequences is Fun binary search, implementation, math	1600	x2787
373A	Collecting Beats is Fun implementation	900	x11445
372E	Drawing Circles is Fun combinatorics, geometry	3000	x189
372D	Choosing Subtree is Fun binary search, data structures, dfs and similar, trees, two pointers	2600	x1128
372C	Watching Fireworks is Fun data structures, dp, math	2100	x4910
372B	Counting Rectangles is Fun brute force, divide and conquer, dp	1900	x2837
372A	Counting Kangaroos is Fun binary search, greedy, sortings, two pointers	1600	x15387
371E	Subway Innovation greedy, math, two pointers	2000	x1437
371D	Vessels data structures, dsu, implementation, trees	1800	x6461
371C	Hamburgers binary search, brute force	1600	x34142
371B	Fox Dividing Cheese math, number theory	1300	x12518
371A	K-Periodic Array greedy, implementation, math	1000	x6641
370E	Summer Reading dp, greedy	2500	x319
370D	Broken Monitor brute force, constructive algorithms, greedy, implementation	2100	x704
370C	Mittens constructive algorithms, greedy, sortings	1800	x1715
370B	Berland Bingo implementation	1300	x2684
370A	Rook, Bishop and King graphs, math, shortest paths	1100	x12000
369E	Valera and Queries binary search, data structures	2200	x2765
369D	Valera and Fools dfs and similar, dp, graphs, shortest paths	2200	x1284
369C	Valera and Elections dfs and similar, graphs, trees	1600	x12009
369B	Valera and Contest constructive algorithms, implementation, math	1400	x6851
369A	Valera and Plates greedy, implementation	900	x12202
368B	Sereja and Suffixes data structures, dp	1100	x49666
368A	Sereja and Coat Rack implementation	1000	x7972
367E	Sereja and Intervals combinatorics, dp	2700	x1388
367D	Sereja and Sets bitmasks, dfs and similar	2400	x688
367C	Sereja and the Arrangement of Numbers graphs, greedy, sortings	2000	x1924
367B	Sereja ans Anagrams binary search, data structures	1900	x2674
367A	Sereja and Algorithm data structures, implementation	1500	x4542
366E	Dima and Magic Guitar brute force, implementation, math	2200	x844
366D	Dima and Trap Graph binary search, data structures, dfs and similar, dsu, shortest paths, two pointers	2000	x1721
366C	Dima and Salad dp	1900	x5846
366B	Dima and To-do List brute force, implementation	1200	x7147
366A	Dima and Guards implementation	1100	x4755
365B	The Fibonacci Segment implementation	1100	x15347
365A	Good Number implementation	1100	x22888
364E	Empty Rectangles divide and conquer, two pointers	3000	x627
364D	Ghd brute force, math, probabilities	2900	x2501
364C	Beautiful Set brute force, number theory	2300	x641
364B	Free Market dp, greedy	2200	x1251
364A	Matrix combinatorics, data structures, implementation	1600	x4950
363E	Two Circles brute force, data structures, implementation	2500	x224
363D	Renting Bikes binary search, greedy	1800	x4317
363C	Fixing Typos greedy, implementation	1400	x14083
363B	Fence brute force, dp	1100	x66643
363A	Soroban implementation	800	x11429
362E	Petya and Pipes flows, graphs, shortest paths	2300	x895
362D	Fools and Foolproof Roads data structures, dfs and similar, dsu, graphs, greedy	2100	x1019
362C	Insertion Sort data structures, dp, implementation, math	1900	x2017
362B	Petya and Staircases implementation, sortings	1100	x14727
362A	Two Semiknights Meet greedy, math	1500	x2802
361B	Levko and Permutation constructive algorithms, math, number theory	1200	x8786
361A	Levko and Table constructive algorithms, implementation	800	x17803
360E	Levko and Game graphs, greedy, shortest paths	2800	x816
360D	Levko and Sets number theory	2600	x486
360C	Levko and Strings combinatorics, dp	2500	x1214
360B	Levko and Array binary search, dp	2000	x3486
360A	Levko and Array Recovery greedy, implementation	1700	x2140
359E	Neatness constructive algorithms, dfs and similar	2400	x518
359D	Pair of Numbers binary search, brute force, data structures, math, two pointers	2000	x5708
359C	Prime Number math, number theory	1900	x3554
359B	Permutation constructive algorithms, dp, math	1400	x8694
359A	Table constructive algorithms, greedy, implementation	1000	x9126
358E	Dima and Kicks brute force, dsu, graphs, implementation	2300	x432
358D	Dima and Hares dp, greedy	1800	x4499
358C	Dima and Containers constructive algorithms, greedy, implementation	2000	x2278
358B	Dima and Text Messages brute force, strings	1500	x3907
358A	Dima and Continuous Line brute force, implementation	1400	x8133
357B	Flag Day constructive algorithms, implementation	1400	x8543
357A	Group of Students brute force, greedy, implementation	1000	x7672
356E	Xenia and String Problem dp, hashing, implementation, string suffix structures, strings	3000	x488
356D	Bags and Coins bitmasks, constructive algorithms, dp, greedy	2700	x1089
356C	Compartments combinatorics, constructive algorithms, greedy, implementation	2100	x1396
356B	Xenia and Hamming implementation, math	1900	x2087
356A	Knight Tournament data structures, dsu	1500	x16710
355B	Vasya and Public Transport greedy, implementation	1100	x4906
355A	Vasya and Digital Root constructive algorithms, implementation	1100	x9833
354E	Lucky Number Representation constructive algorithms, dfs and similar, dp	2200	x911
354D	Transferring Pyramid dp	2900	x493
354C	Vasya and Beautiful Arrays brute force, dp, number theory	2100	x3329
354B	Game with Strings bitmasks, dp, games	2400	x503
354A	Vasya and Robot brute force, greedy, math	1500	x5654
353E	Antichain dp, graph matchings, greedy	2200	x672
353D	Queue constructive algorithms, dp	2000	x3183
353C	Find Maximum implementation, math, number theory	1600	x5253
353B	Two Heaps combinatorics, constructive algorithms, greedy, implementation, math, sortings	1900	x2431
353A	Domino implementation, math	1200	x19973
352B	Jeff and Periods implementation, sortings	1300	x18139
352A	Jeff and Digits brute force, implementation, math	1000	x28464
351E	Jeff and Permutation greedy	2200	x1791
351D	Jeff and Removing Periods data structures	2700	x1340
351C	Jeff and Brackets dp, matrices	2500	x629
351B	Jeff and Furik combinatorics, dp, probabilities	1900	x2723
351A	Jeff and Rounding dp, greedy, implementation, math	1800	x3095
350E	Wrong Floyd brute force, constructive algorithms, dfs and similar, graphs	2200	x858
350D	Looking for Owls binary search, data structures, geometry, hashing, sortings	2400	x296
350C	Bombs greedy, implementation, sortings	1600	x6817
350B	Resort graphs	1500	x3394
350A	TL brute force, greedy, implementation	1200	x17504
349B	Color the Fence data structures, dp, greedy, implementation	1700	x15099

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