Problemset - Codeforces

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Educational Codeforces Round 173 (Rated for Div. 2)
23:21:59
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Problems

#	Name
405C	Unusual Product implementation, math	1600	x4699
405B	Domino Effect	1100	x5811
405A	Gravity Flip greedy, implementation, sortings	900	x104087
404E	Maze 1D binary search, greedy, implementation	2200	x600
404D	Minesweeper 1D dp, implementation	1900	x2172
404C	Restore Graph dfs and similar, graphs, sortings	1800	x5274
404B	Marathon implementation, math	1500	x2943
404A	Valera and X implementation	1000	x24252
403E	Two Rooted Trees data structures, implementation, trees	2900	x222
403D	Beautiful Pairs of Numbers combinatorics, dp	2300	x1120
402E	Strictly Positive Matrix graphs, math	2200	x2207
402D	Upgrading Array dp, greedy, math, number theory	1800	x2634
402C	Searching for Graph brute force, constructive algorithms, graphs	1500	x5974
402B	Trees in a Row brute force, implementation	1400	x3826
402A	Nuts greedy, math	1100	x4629
401E	Olympic Games math	2500	x168
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x4215
401C	Team constructive algorithms, greedy, implementation	1400	x20178
401B	Sereja and Contests greedy, implementation, math	1200	x4442
401A	Vanya and Cards implementation, math	800	x16491
400E	Inna and Binary Logic binary search, bitmasks, data structures	2100	x975
400D	Dima and Bacteria dsu, graphs, shortest paths	2000	x2927
400C	Inna and Huge Candy Matrix implementation, math	1500	x2904
400B	Inna and New Matrix of Candies brute force, implementation, schedules	1200	x7814
400A	Inna and Choose Options implementation	1000	x6542
399B	Red and Blue Balls		x1843
399A	Pages implementation		x4164
398E	Sorting Permutations		x92
398D	Instant Messanger data structures		x949
398C	Tree and Array constructive algorithms		x214
398B	Painting The Wall dp, probabilities		x1069
398A	Cards constructive algorithms, implementation		x927
397B	On Corruption and Numbers constructive algorithms, implementation, math		x754
397A	On Segment's Own Points implementation		x2631
396E	On Iteration of One Well-Known Function math		x154
396D	On Sum of Number of Inversions in Permutations combinatorics, math		x439
396C	On Changing Tree data structures, graphs, trees		x1632
396B	On Sum of Fractions math, number theory		x1110
396A	On Number of Decompositions into Multipliers combinatorics, math, number theory		x1518
394E	Lightbulb for Minister geometry		x117
394D	Physical Education and Buns brute force, implementation, math		x271
394C	Dominoes constructive algorithms, greedy		x520
394B	Very Beautiful Number math		x575
394A	Counting Sticks brute force, implementation		x2666
393B	Three matrices		x1997
393A	Nineteen		x6686
392E	Deleting Substrings		x179
392D	Three Arrays data structures		x217
392C	Yet Another Number Sequence combinatorics, math, matrices		x594
392B	Tower of Hanoi dp		x957
392A	Blocked Points math		x976
391F3	Stock Trading		x107
391F2	Stock Trading greedy		x108
391F1	Stock Trading dp		x182
391E2	Three Trees		x168
391E1	Three Trees		x121
391D2	Supercollider data structures		x198
391D1	Supercollider brute force		x214
391C3	The Tournament		x171
391C2	The Tournament greedy		x138
391C1	The Tournament brute force		x189
391B	Word Folding brute force		x395
391A	Genetic Engineering implementation, two pointers		x1724
390E	Inna and Large Sweet Matrix		x261
390D	Inna and Sweet Matrix constructive algorithms		x519
390C	Inna and Candy Boxes data structures		x628
390B	Inna, Dima and Song implementation		x1179
390A	Inna and Alarm Clock implementation		x3598
389B	Fox and Cross greedy, implementation	1100	x6966
389A	Fox and Number Game greedy, math	1000	x14138
388E	Fox and Meteor Shower geometry	3100	x122
388D	Fox and Perfect Sets math	2700	x449
388C	Fox and Card Game games, greedy, sortings	2000	x3451
388B	Fox and Minimal path bitmasks, constructive algorithms, graphs, implementation, math	1900	x2487
388A	Fox and Box Accumulation greedy, sortings	1400	x11522
387E	George and Cards binary search, data structures	2200	x903
387D	George and Interesting Graph graph matchings	2200	x1023
387C	George and Number greedy, implementation	1700	x2194
387B	George and Round brute force, greedy, two pointers	1200	x12360
387A	George and Sleep implementation	900	x9787
386D	Game with Points dp, graphs, implementation, shortest paths	2100	x463
386C	Diverse Substrings dp, strings, two pointers	2000	x824
386B	Fly, freebies, fly! binary search, brute force, implementation	1400	x2197
386A	Second-Price Auction implementation	800	x6513
385E	Bear in the Field math, matrices	2300	x592
385D	Bear and Floodlight bitmasks, dp, geometry	2200	x815
385C	Bear and Prime Numbers binary search, brute force, data structures, dp, implementation, math, number theory	1700	x9749
385B	Bear and Strings brute force, greedy, implementation, math, strings	1200	x10021
385A	Bear and Raspberry brute force, greedy, implementation	1000	x16593
384B	Multitasking greedy, implementation, sortings, two pointers	1500	x3574
384A	Coder implementation	800	x16434
383E	Vowels combinatorics, divide and conquer, dp	2700	x3197
383D	Antimatter dp	2300	x3055
383C	Propagating tree data structures, dfs and similar, trees	2000	x6608
383B	Volcanoes binary search, implementation, sortings, two pointers	2500	x702
383A	Milking cows data structures, greedy	1600	x5315
382E	Ksenia and Combinatorics combinatorics, dp	2600	x383
382D	Ksenia and Pawns dfs and similar, graphs, implementation, trees	2200	x686
382C	Arithmetic Progression implementation, sortings	1700	x8346
382B	Number Busters binary search, math	2000	x1417