Problemset - Codeforces

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Codeforces Round 940 (Div. 2)
3 days
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Problems

#	Name
274E	Mirror Room data structures, implementation	3000	x298
274D	Lovely Matrix dfs and similar, graphs, greedy, sortings	2200	x1003
274C	The Last Hole! brute force, geometry	2600	x345
274B	Zero Tree dfs and similar, dp, greedy, trees	1800	x4879
274A	k-Multiple Free Set binary search, greedy, sortings	1500	x9823
273E	Dima and Game dp, games	2600	x357
273D	Dima and Figure dp	2400	x383
272E	Dima and Horses combinatorics, constructive algorithms, graphs	2200	x1169
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2578
272C	Dima and Staircase data structures, implementation	1500	x6664
272B	Dima and Sequence implementation, math	1400	x3910
272A	Dima and Friends implementation, math	1000	x23403
271E	Three Horses constructive algorithms, math, number theory	2200	x477
271D	Good Substrings data structures, strings	1800	x10173
271C	Secret constructive algorithms, implementation	1500	x2902
271B	Prime Matrix binary search, brute force, math, number theory	1300	x12318
271A	Beautiful Year brute force	800	x126549
270B	Multithreading data structures, greedy, implementation	1400	x4068
270A	Fancy Fence geometry, implementation, math	1100	x43229
269E	String Theory geometry, math, strings	3100	x106
269D	Maximum Waterfall data structures, dp, graphs, sortings	2600	x412
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1589
269B	Greenhouse Effect dp	1700	x6097
269A	Magical Boxes greedy, math	1600	x3466
268E	Playlist math, probabilities, sortings	2100	x971
268D	Wall Bars dp	2300	x489
268C	Beautiful Sets of Points constructive algorithms, implementation	1500	x13222
268B	Buttons implementation, math	1000	x30732
268A	Games brute force	800	x80275
267C	Berland Traffic math, matrices	2700	x156
267B	Dominoes dfs and similar, graphs	2000	x607
267A	Subtractions math, number theory	900	x7067
266E	More Queries to Array... data structures, math	2500	x715
266D	BerDonalds graphs, math, shortest paths	2400	x704
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1333
266B	Queue at the School constructive algorithms, graph matchings, implementation, shortest paths	800	x125957
266A	Stones on the Table implementation	800	x176597
265B	Roadside Trees (Simplified Edition) greedy, implementation	1000	x16851
265A	Colorful Stones (Simplified Edition) implementation	800	x34087
264E	Roadside Trees data structures, dp	3000	x393
264D	Colorful Stones dp, two pointers	2500	x405
264C	Choosing Balls dp	2000	x2656
264B	Good Sequences dp, number theory	1500	x9574
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x10577
263E	Rhombus brute force, data structures, dp	2500	x393
263D	Cycle in Graph dfs and similar, graphs	1800	x3223
263C	Circle of Numbers brute force, dfs and similar, implementation	2000	x1050
263B	Squares greedy, implementation, sortings	900	x8694
263A	Beautiful Matrix implementation	800	x222777
262B	Roma and Changing Signs greedy	1200	x10867
262A	Roma and Lucky Numbers implementation	800	x18955
261E	Maxim and Calculator brute force, dp, two pointers	2800	x402
261D	Maxim and Increasing Subsequence dp	2600	x552
261C	Maxim and Matrix constructive algorithms, dp, math	2000	x758
261B	Maxim and Restaurant dp, math, probabilities	1900	x1358
261A	Maxim and Discounts greedy, sortings	1400	x5082
260E	Dividing Kingdom binary search, brute force, data structures	2500	x407
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1307
260C	Balls and Boxes constructive algorithms, greedy, implementation	1700	x2915
260B	Ancient Prophesy brute force, implementation, strings	1600	x3732
260A	Adding Digits implementation, math	1400	x14060
259B	Little Elephant and Magic Square brute force, implementation	1100	x13653
259A	Little Elephant and Chess brute force, strings	1000	x8907
258E	Little Elephant and Tree data structures, dfs and similar, trees	2400	x1018
258D	Little Elephant and Broken Sorting dp, math, probabilities	2600	x1203
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x1752
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1414
258A	Little Elephant and Bits greedy, math	1100	x21968
257E	Greedy Elevator data structures, implementation	2200	x275
257D	Sum greedy, math	1900	x1542
257C	View Angle brute force, geometry, math	1800	x4176
257B	Playing Cubes games, greedy, implementation	1300	x6844
257A	Sockets greedy, implementation, sortings	1100	x6371
256E	Lucky Arrays data structures	2400	x652
256D	Liars and Serge dp	2700	x254
255E	Furlo and Rublo and Game games, implementation, math	2200	x826
255D	Mr. Bender and Square binary search, implementation, math	1800	x1925
255C	Almost Arithmetical Progression brute force, dp	1500	x4615
255B	Code Parsing implementation	1200	x4855
255A	Greg's Workout implementation	800	x27561
254E	Dormitory dp, implementation	2100	x482
254D	Rats brute force, dfs and similar, graphs, implementation, shortest paths	2300	x495
254C	Anagram greedy, strings	1800	x1465
254B	Jury Size brute force, implementation	1500	x2125
254A	Cards with Numbers constructive algorithms, sortings	1200	x6817
253E	Printer binary search, data structures, implementation, sortings	2200	x519
253D	Table with Letters - 2 brute force, two pointers	2000	x804
253C	Text Editor data structures, dfs and similar, graphs, greedy, shortest paths	1600	x2514
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x10265
253A	Boys and Girls greedy	1100	x10892
252B	Unsorting Array brute force, sortings	1800	x1675
252A	Little Xor brute force, implementation	1100	x5142
251E	Tree and Table dfs and similar, dp, implementation, trees	3000	x167
251D	Two Sets bitmasks, math	2700	x440
251C	Number Transformation dp, greedy, number theory	2000	x1010
251B	Playing with Permutations implementation, math	1800	x1248
251A	Points on Line binary search, combinatorics, two pointers	1300	x16501
250E	Mad Joe brute force	2000	x437
250D	Building Bridge geometry, ternary search, two pointers	1900	x872
250C	Movie Critics greedy	1600	x1871