Problemset - Codeforces

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Codeforces Round (Div. 2)
6 days

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Problems

#	Name
1346G	Two IP Cameras *special problem, math, number theory	2300	x135
1346F	Dune II: Battle For Arrakis *special problem, data structures, greedy, math	2000	x228
1346E	Magic Tricks *special problem, dp, graphs	1700	x378
1346D	Constructing the Dungeon *special problem, graphs, greedy	1600	x502
1346C	Spring Cleaning *special problem, greedy, sortings	1600	x605
1346B	Boot Camp *special problem, greedy	1400	x1207
1346A	Color Revolution *special problem, math	1000	x2033
1345B	Card Constructions binary search, brute force, dp, math	1100	x26441
1345A	Puzzle Pieces math	800	x24171
1344F	Piet's Palette matrices	3200	x454
1344E	Train Tracks data structures, trees	3100	x459
1344D	Résumé Review binary search, greedy, math	2700	x1163
1344C	Quantifier Question dfs and similar, dp, graphs, math	2600	x1861
1344B	Monopole Magnets constructive algorithms, dfs and similar, dsu, graphs	2000	x6063
1344A	Hilbert's Hotel math, number theory, sortings	1600	x15646
1343F	Restore the Permutation by Sorted Segments brute force, constructive algorithms, data structures, greedy, implementation	2400	x1268
1343E	Weights Distributing brute force, graphs, greedy, shortest paths, sortings	2100	x5172
1343D	Constant Palindrome Sum brute force, data structures, greedy, two pointers	1700	x12671
1343C	Alternating Subsequence dp, greedy, two pointers	1200	x38392
1343B	Balanced Array constructive algorithms, math	800	x56527
1343A	Candies brute force, math	900	x47909
1342F	Make It Ascending bitmasks, brute force, dp	3000	x715
1342E	Placing Rooks combinatorics, fft, math	2300	x3083
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x6098
1342C	Yet Another Counting Problem math, number theory	1600	x14039
1342B	Binary Period constructive algorithms, strings	1100	x23695
1342A	Road To Zero greedy, math	1000	x40380
1341B	Nastya and Door greedy, implementation	1300	x19681
1341A	Nastya and Rice math	900	x29044
1340F	Nastya and CBS brute force, data structures, hashing	3300	x504
1340E	Nastya and Bees graphs, interactive, probabilities	3000	x53
1340D	Nastya and Time Machine constructive algorithms, dfs and similar, graphs, trees	2600	x991
1340C	Nastya and Unexpected Guest dfs and similar, dp, graphs, shortest paths	2400	x2242
1340B	Nastya and Scoreboard bitmasks, dp, graphs, greedy	1700	x7852
1340A	Nastya and Strange Generator brute force, data structures, greedy, implementation	1500	x13419
1339B	Sorted Adjacent Differences constructive algorithms, sortings	1200	x26398
1339A	Filling Diamonds brute force, dp, implementation, math	900	x32043
1338E	JYPnation graphs	3500	x241
1338D	Nested Rubber Bands constructive algorithms, dfs and similar, dp, math, trees	2700	x1016
1338C	Perfect Triples bitmasks, brute force, constructive algorithms, divide and conquer, math	2200	x3220
1338B	Edge Weight Assignment bitmasks, constructive algorithms, dfs and similar, greedy, math, trees	1800	x8468
1338A	Powered Addition greedy, math	1500	x24003
1337B	Kana and Dragon Quest game greedy, implementation, math	900	x34200
1337A	Ichihime and Triangle constructive algorithms, math	800	x38272
1336F	Journey data structures, divide and conquer, graphs, trees	3500	x220
1336E2	Chiori and Doll Picking (hard version) bitmasks, brute force, combinatorics, math	3500	x304
1336E1	Chiori and Doll Picking (easy version) bitmasks, brute force, combinatorics, math	2700	x685
1336D	Yui and Mahjong Set constructive algorithms, interactive	3200	x474
1336C	Kaavi and Magic Spell dp, strings	2200	x3598
1336B	Xenia and Colorful Gems binary search, greedy, math, sortings, two pointers	1700	x11376
1336A	Linova and Kingdom dfs and similar, dp, greedy, sortings, trees	1600	x20421
1335F	Robots on a Grid data structures, dfs and similar, dsu, graphs, greedy, matrices	2200	x2187
1335E2	Three Blocks Palindrome (hard version) brute force, data structures, dp, two pointers	1800	x8352
1335E1	Three Blocks Palindrome (easy version) binary search, brute force, data structures, dp, two pointers	1700	x10852
1335D	Anti-Sudoku constructive algorithms, implementation	1300	x27427
1335C	Two Teams Composing binary search, greedy, implementation, sortings	1100	x34640
1335B	Construct the String constructive algorithms	900	x38447
1335A	Candies and Two Sisters math	800	x84413
1334G	Substring Search bitmasks, brute force, fft	2900	x371
1334F	Strange Function binary search, data structures, dp, greedy	2500	x1313
1334E	Divisor Paths combinatorics, graphs, greedy, math, number theory	2200	x2829
1334D	Minimum Euler Cycle constructive algorithms, graphs, greedy, implementation	1800	x7307
1334C	Circle of Monsters brute force, constructive algorithms, greedy, math	1600	x16618
1334B	Middle Class greedy, sortings	1100	x25870
1334A	Level Statistics implementation, math	1200	x23276
1333F	Kate and imperfection greedy, implementation, math, number theory, sortings, two pointers	2200	x4264
1333E	Road to 1600 brute force, constructive algorithms	2400	x1698
1333D	Challenges in school №41 brute force, constructive algorithms, games, graphs, greedy, implementation, sortings	2100	x3931
1333C	Eugene and an array binary search, data structures, implementation, two pointers	1700	x12584
1333B	Kind Anton greedy, implementation	1100	x21605
1333A	Little Artem constructive algorithms	1000	x24614
1332G	No Monotone Triples data structures	3100	x297
1332F	Independent Set dfs and similar, dp, trees	2500	x1002
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x3843
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x8191
1332C	K-Complete Word dfs and similar, dsu, greedy, implementation, strings	1500	x16618
1332B	Composite Coloring brute force, constructive algorithms, greedy, math, number theory	1400	x17592
1332A	Exercising Walk greedy, implementation, math	1100	x19412
1330B	Dreamoon Likes Permutations implementation, math	1400	x14056
1330A	Dreamoon and Ranking Collection implementation	900	x18748
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	x9135
1328F	Make k Equal greedy	2200	x3233
1328E	Tree Queries dfs and similar, graphs, trees	1900	x9556
1328D	Carousel constructive algorithms, dp, graphs, greedy, math	1800	x13177
1328C	Ternary XOR greedy, implementation	1200	x30485
1328B	K-th Beautiful String binary search, brute force, combinatorics, implementation, math	1300	x29110
1328A	Divisibility Problem math	800	x101392
1327G	Letters and Question Marks bitmasks, dp, string suffix structures	2800	x426
1327F	AND Segments bitmasks, combinatorics, data structures, dp, two pointers	2500	x1673
1327E	Count The Blocks combinatorics, dp, math	1800	x8946
1327D	Infinite Path brute force, dfs and similar, graphs, math, number theory	2200	x3274
1327C	Game with Chips constructive algorithms, implementation	1600	x13425
1327B	Princesses and Princes brute force, graphs, greedy	1200	x18703
1327A	Sum of Odd Integers math	1100	x38949
1326G	Spiderweb Trees dp, geometry, trees	3500	x79
1326F2	Wise Men (Hard Version) bitmasks, dp, math	3200	x483