Problemset - Codeforces

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Codeforces Round (Div. 2)
3 days
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Problems

#	Name
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x8187
1332C	K-Complete Word dfs and similar, dsu, greedy, implementation, strings	1500	x16595
1332B	Composite Coloring brute force, constructive algorithms, greedy, math, number theory	1400	x17588
1332A	Exercising Walk greedy, implementation, math	1100	x19412
1331H	It's showtime *special problem		x625
1331G	Lingua Romana *special problem		x504
1331F	Elementary! *special problem, brute force, dp, strings		x567
1331E	Jordan Smiley *special problem, dfs and similar, geometry, implementation		x1211
1331D	Again? *special problem, implementation		x11884
1331C	...And after happily lived ever they *special problem, bitmasks		x3153
1331B	Limericks *special problem, math, number theory		x7005
1331A	Is it rated? *special problem		x17096
1330B	Dreamoon Likes Permutations implementation, math	1400	x14025
1330A	Dreamoon and Ranking Collection implementation	900	x18742
1329E	Dreamoon Loves AA binary search, greedy	3300	x181
1329D	Dreamoon Likes Strings constructive algorithms, data structures	3100	x396
1329C	Drazil Likes Heap constructive algorithms, data structures, greedy, implementation	2400	x1708
1329B	Dreamoon Likes Sequences bitmasks, combinatorics, math	1700	x6694
1329A	Dreamoon Likes Coloring constructive algorithms, greedy, implementation, math	1800	x9114
1328F	Make k Equal greedy	2200	x3231
1328E	Tree Queries dfs and similar, graphs, trees	1900	x9546
1328D	Carousel constructive algorithms, dp, graphs, greedy, math	1800	x13164
1328C	Ternary XOR greedy, implementation	1200	x30463
1328B	K-th Beautiful String binary search, brute force, combinatorics, implementation, math	1300	x29087
1328A	Divisibility Problem math	800	x101187
1327G	Letters and Question Marks bitmasks, dp, string suffix structures	2800	x426
1327F	AND Segments bitmasks, combinatorics, data structures, dp, two pointers	2500	x1670
1327E	Count The Blocks combinatorics, dp, math	1800	x8943
1327D	Infinite Path brute force, dfs and similar, graphs, math, number theory	2200	x3274
1327C	Game with Chips constructive algorithms, implementation	1600	x13421
1327B	Princesses and Princes brute force, graphs, greedy	1200	x18699
1327A	Sum of Odd Integers math	1100	x38894
1326G	Spiderweb Trees dp, geometry, trees	3500	x79
1326F2	Wise Men (Hard Version) bitmasks, dp, math	3200	x483
1326F1	Wise Men (Easy Version) bitmasks, brute force, dp, meet-in-the-middle	2600	x838
1326E	Bombs data structures, two pointers	2400	x2180
1326D2	Prefix-Suffix Palindrome (Hard version) binary search, greedy, hashing, string suffix structures, strings	1800	x10153
1326D1	Prefix-Suffix Palindrome (Easy version) hashing, string suffix structures, strings	1500	x12087
1326C	Permutation Partitions combinatorics, greedy, math	1300	x15628
1326B	Maximums implementation, math	900	x24031
1326A	Bad Ugly Numbers constructive algorithms, number theory	1000	x30292
1325F	Ehab's Last Theorem constructive algorithms, dfs and similar, graphs, greedy	2500	x1983
1325E	Ehab's REAL Number Theory Problem brute force, dfs and similar, graphs, number theory, shortest paths	2600	x2056
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x12111
1325C	Ehab and Path-etic MEXs constructive algorithms, dfs and similar, greedy, trees	1500	x13653
1325B	CopyCopyCopyCopyCopy greedy, implementation	800	x35988
1325A	EhAb AnD gCd constructive algorithms, greedy, number theory	800	x40033
1324F	Maximum White Subtree dfs and similar, dp, graphs, trees	1800	x9993
1324E	Sleeping Schedule dp, implementation	1700	x13547
1324D	Pair of Topics binary search, data structures, sortings, two pointers	1400	x28279
1324C	Frog Jumps binary search, data structures, dfs and similar, greedy, implementation	1100	x27934
1324B	Yet Another Palindrome Problem brute force, strings	1100	x28459
1324A	Yet Another Tetris Problem implementation, number theory	900	x25952
1323B	Count Subrectangles binary search, greedy, implementation	1500	x8991
1323A	Even Subset Sum Problem brute force, dp, greedy, implementation	800	x19772
1322F	Assigning Fares dp, trees	3500	x99
1322E	Median Mountain Range data structures	3300	x303
1322D	Reality Show bitmasks, dp	2800	x745
1322C	Instant Noodles graphs, hashing, math, number theory	2300	x2422
1322B	Present binary search, bitmasks, constructive algorithms, data structures, math, sortings	2100	x4207
1322A	Unusual Competitions greedy	1300	x12432
1321C	Remove Adjacent brute force, constructive algorithms, greedy, strings	1600	x9814
1321A	Contest for Robots greedy	900	x14292
1320F	Blocks and Sensors brute force	3500	x160
1320E	Treeland and Viruses data structures, dfs and similar, dp, shortest paths, trees	3000	x822
1320D	Reachable Strings data structures, hashing, strings	2500	x1503
1320C	World of Darkraft: Battle for Azathoth brute force, data structures, sortings	2000	x3103
1320B	Navigation System dfs and similar, graphs, shortest paths	1700	x6047
1320A	Journey Planning data structures, dp, greedy, math, sortings	1400	x16361
1316F	Battalion Strength data structures, divide and conquer, probabilities	2800	x807
1316E	Team Building bitmasks, dp, greedy, sortings	2300	x4041
1316D	Nash Matrix constructive algorithms, dfs and similar, graphs, implementation	2000	x3385
1316C	Primitive Primes constructive algorithms, math, ternary search	1800	x7284
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x11269
1316A	Grade Allocation implementation	800	x18680
1315C	Restoring Permutation greedy	1200	x10087
1315B	Homecoming binary search, dp, greedy, strings	1300	x9193
1315A	Dead Pixel implementation	800	x12079
1313E	Concatenation with intersection data structures, hashing, strings, two pointers	2700	x542
1313D	Happy New Year bitmasks, dp, implementation	2500	x1339
1313C2	Skyscrapers (hard version) data structures, dp, greedy	1900	x6491
1313C1	Skyscrapers (easy version) brute force, data structures, dp, greedy	1500	x10429
1313B	Different Rules constructive algorithms, greedy, implementation, math	1700	x6673
1313A	Fast Food Restaurant brute force, greedy, implementation	900	x15495
1312G	Autocompletion data structures, dfs and similar, dp	2600	x985
1312F	Attack on Red Kingdom games, two pointers	2500	x914
1312E	Array Shrinking dp, greedy	2100	x5931
1312D	Count the Arrays combinatorics, math	1700	x9462
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x16535
1312B	Bogosort constructive algorithms, sortings	1000	x26787
1312A	Two Regular Polygons geometry, greedy, math, number theory	800	x25918
1311F	Moving Points data structures, divide and conquer, implementation, sortings	1900	x4244
1311E	Construct the Binary Tree brute force, constructive algorithms, trees	2200	x2351
1311D	Three Integers brute force, math	2000	x9053
1311C	Perform the Combo brute force	1300	x16016
1311B	WeirdSort dfs and similar, sortings	1200	x18890
1311A	Add Odd or Subtract Even greedy, implementation, math	800	x41907
1310F	Bad Cryptography math, number theory	3400	x74
1310E	Strange Function dp	2900	x289
1310D	Tourism dp, graphs, probabilities	2300	x1576