Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1349A	Orac and LCM data structures, math, number theory	1600	x15842
1348E	Phoenix and Berries brute force, dp, greedy, math	2400	x1975
1348D	Phoenix and Science binary search, constructive algorithms, greedy, implementation, math	1900	x8470
1348A	Phoenix and Balance greedy, math	800	x38284
1346G	Two IP Cameras *special problem, math, number theory	2300	x130
1346F	Dune II: Battle For Arrakis *special problem, data structures, greedy, math	2000	x218
1346A	Color Revolution *special problem, math	1000	x1939
1345B	Card Constructions binary search, brute force, dp, math	1100	x25443
1345A	Puzzle Pieces math	800	x23793
1344D	Résumé Review binary search, greedy, math	2700	x942
1344C	Quantifier Question dfs and similar, dp, graphs, math	2600	x1639
1344A	Hilbert's Hotel math, number theory, sortings	1600	x15168
1343B	Balanced Array constructive algorithms, math	800	x53456
1343A	Candies brute force, math	900	x46143
1342E	Placing Rooks combinatorics, fft, math	2300	x2801
1342C	Yet Another Counting Problem math, number theory	1600	x13577
1342A	Road To Zero greedy, math	1000	x38197
1341A	Nastya and Rice math	900	x28225
1339A	Filling Diamonds brute force, dp, implementation, math	900	x30982
1338D	Nested Rubber Bands constructive algorithms, dfs and similar, dp, math, trees	2700	x796
1338C	Perfect Triples bitmasks, brute force, constructive algorithms, divide and conquer, math	2200	x2956
1338B	Edge Weight Assignment bitmasks, constructive algorithms, dfs and similar, greedy, math, trees	1800	x8030
1338A	Powered Addition greedy, math	1500	x22537
1337B	Kana and Dragon Quest game greedy, implementation, math	900	x32982
1337A	Ichihime and Triangle constructive algorithms, math	800	x35892
1336E2	Chiori and Doll Picking (hard version) bitmasks, brute force, combinatorics, math	3500	x283
1336E1	Chiori and Doll Picking (easy version) bitmasks, brute force, combinatorics, math	2700	x647
1336B	Xenia and Colorful Gems binary search, greedy, math, sortings, two pointers	1700	x10965
1335A	Candies and Two Sisters math	800	x78252
1334E	Divisor Paths combinatorics, graphs, greedy, math, number theory	2200	x2587
1334C	Circle of Monsters brute force, constructive algorithms, greedy, math	1600	x16021
1334A	Level Statistics implementation, math	1200	x22604
1333F	Kate and imperfection greedy, implementation, math, number theory, sortings, two pointers	2200	x3906
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x3551
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x7806
1332B	Composite Coloring brute force, constructive algorithms, greedy, math, number theory	1400	x17006
1332A	Exercising Walk greedy, implementation, math	1100	x19081
1331B	Limericks *special problem, math, number theory		x6974
1330B	Dreamoon Likes Permutations implementation, math	1400	x13707
1329B	Dreamoon Likes Sequences bitmasks, combinatorics, math	1700	x6348
1329A	Dreamoon Likes Coloring constructive algorithms, greedy, implementation, math	1800	x8767
1328D	Carousel constructive algorithms, dp, graphs, greedy, math	1800	x12482
1328B	K-th Beautiful String binary search, brute force, combinatorics, implementation, math	1300	x28022
1328A	Divisibility Problem math	800	x92739
1327E	Count The Blocks combinatorics, dp, math	1800	x8485
1327D	Infinite Path brute force, dfs and similar, graphs, math, number theory	2200	x3020
1327A	Sum of Odd Integers math	1100	x36736
1326F2	Wise Men (Hard Version) bitmasks, dp, math	3200	x456
1326C	Permutation Partitions combinatorics, greedy, math	1300	x15205
1326B	Maximums implementation, math	900	x23447
1322C	Instant Noodles graphs, hashing, math, number theory	2300	x2059
1322B	Present binary search, bitmasks, constructive algorithms, data structures, math, sortings	2100	x3887
1320A	Journey Planning data structures, dp, greedy, math, sortings	1400	x15357
1316C	Primitive Primes constructive algorithms, math, ternary search	1800	x6974
1313B	Different Rules constructive algorithms, greedy, implementation, math	1700	x6421
1312D	Count the Arrays combinatorics, math	1700	x8889
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15735
1312A	Two Regular Polygons geometry, greedy, math, number theory	800	x25251
1311D	Three Integers brute force, math	2000	x8604
1311A	Add Odd or Subtract Even greedy, implementation, math	800	x40576
1310F	Bad Cryptography math, number theory	3400	x67
1307E	Cow and Treats binary search, combinatorics, dp, greedy, implementation, math	2500	x1074
1307C	Cow and Message brute force, dp, math, strings	1500	x11513
1307B	Cow and Friend geometry, greedy, math	1300	x12903
1305F	Kuroni and the Punishment math, number theory, probabilities	2500	x2314
1305E	Kuroni and the Score Distribution constructive algorithms, greedy, implementation, math	2200	x2868
1305C	Kuroni and Impossible Calculation brute force, combinatorics, math, number theory	1600	x13495
1304A	Two Rabbits math	800	x24971
1303B	National Project math	1400	x15354
1301C	Ayoub's function binary search, combinatorics, greedy, math, strings	1700	x9017
1300A	Non-zero implementation, math	800	x20654
1299E	So Mean interactive, math	3400	x148
1299D	Around the World bitmasks, combinatorics, dfs and similar, dp, graphs, graphs, math, trees	3000	x414
1299A	Anu Has a Function brute force, greedy, math	1500	x11737
1297G	M-numbers *special problem, dp, math		x65
1296B	Food Buying math	900	x29301
1296A	Array with Odd Sum math	800	x39316
1295D	Same GCDs math, number theory	1800	x8390
1295B	Infinite Prefixes math, strings	1700	x9064
1294E	Obtain a Permutation greedy, implementation, math	1900	x4677
1294D	MEX maximizing data structures, greedy, implementation, math	1600	x11290
1294C	Product of Three Numbers greedy, math, number theory	1300	x32111
1294A	Collecting Coins math	800	x44106
1293B	JOE is on TV! combinatorics, greedy, math	1000	x20758
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x327
1292D	Chaotic V. dp, graphs, greedy, math, number theory, trees	2700	x771
1291A	Even But Not Even greedy, math, strings	900	x18996
1288B	Yet Another Meme Problem math	1100	x16715
1288A	Deadline binary search, brute force, math, ternary search	1100	x17857
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3100	x232
1286D	LCC data structures, math, matrices, probabilities	3100	x555
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2800	x606
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1253
1285C	Fadi and LCM brute force, math, number theory	1400	x21874
1285A	Mezo Playing Zoma math	800	x27245
1284F	New Year and Social Network data structures, graph matchings, graphs, math, trees	3200	x306
1284E	New Year and Castle Construction combinatorics, geometry, math, sortings	2500	x1094
1284C	New Year and Permutation combinatorics, math	1600	x7687
1283C	Friends and Gifts constructive algorithms, data structures, math	1500	x12770
1283B	Candies Division math	900	x21198