Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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brute force

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Problems

#	Name
1945C	Left and Right Houses brute force	1200	x12350
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12379
1670B	Dorms War brute force, implementation, strings	1100	x12399
1379B	Dubious Cyrpto binary search, brute force, math, number theory	1500	x12461
1444A	Division brute force, math, number theory	1500	x12525
1534A	Colour the Flag brute force, implementation	800	x12573
1833D	Flipper brute force, constructive algorithms, greedy	1400	x12632
1650D	Twist the Permutation brute force, constructive algorithms, implementation, math	1300	x12642
1364C	Ehab and Prefix MEXs brute force, constructive algorithms, greedy	1600	x12658
554A	Kyoya and Photobooks brute force, math, strings	900	x12688
796A	Buying A House brute force, implementation	800	x12816
841A	Generous Kefa brute force, implementation	900	x12912
1705C	Mark and His Unfinished Essay brute force, implementation	1400	x12953
143A	Help Vasilisa the Wise 2 brute force, math	1000	x13010
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13056
987C	Three displays brute force, dp, implementation	1400	x13061
1711B	Party brute force, graphs	1300	x13080
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13084
629A	Far Relative’s Birthday Cake brute force, combinatorics, constructive algorithms, implementation	800	x13088
1792C	Min Max Sort binary search, brute force, greedy, math, two pointers	1500	x13125
1340A	Nastya and Strange Generator brute force, data structures, greedy, implementation	1500	x13136
1559D1	Mocha and Diana (Easy Version) brute force, constructive algorithms, dsu, graphs, greedy, trees	1400	x13167
727A	Transformation: from A to B brute force, dfs and similar, math	1000	x13171
1781B	Going to the Cinema brute force, greedy, sortings	1000	x13190
1676H1	Maximum Crossings (Easy Version) brute force	1400	x13208
1902B	Getting Points binary search, brute force, greedy	1100	x13218
448D	Multiplication Table binary search, brute force	1800	x13240
1644C	Increase Subarray Sums brute force, dp, greedy, implementation	1400	x13313
1279B	Verse For Santa binary search, brute force, implementation	1300	x13344
948A	Protect Sheep brute force, dfs and similar, graphs, implementation	900	x13344
854A	Fraction brute force, constructive algorithms, math	800	x13362
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x13380
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13384
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13486
298B	Sail brute force, greedy, implementation	1200	x13489
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x13496
1305C	Kuroni and Impossible Calculation brute force, combinatorics, math, number theory	1600	x13516
1821C	Tear It Apart brute force, implementation, math, strings	1300	x13532
1491B	Minimal Cost brute force, math	1200	x13555
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x13661
259B	Little Elephant and Magic Square brute force, implementation	1100	x13662
1060A	Phone Numbers brute force	800	x13676
914A	Perfect Squares brute force, implementation, math	900	x13725
1810C	Make It Permutation brute force, greedy, sortings	1300	x13731
1305A	Kuroni and the Gifts brute force, constructive algorithms, greedy, sortings	800	x13754
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x13790
1763B	Incinerate binary search, brute force, data structures, implementation, math, sortings	1200	x13853
215A	Bicycle Chain brute force, implementation	900	x13873
1623B	Game on Ranges brute force, dfs and similar, implementation, sortings	1100	x13889
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x13917
1732B	Ugu brute force, dp, greedy, implementation	900	x13965
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x13969
488A	Giga Tower brute force	1100	x14035
1748B	Diverse Substrings brute force, implementation, strings	1400	x14176
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x14179
1530C	Pursuit binary search, brute force, greedy, sortings	1200	x14210
1673B	A Perfectly Balanced String? brute force, greedy, strings	1100	x14225
47A	Triangular numbers brute force, math	800	x14229
706A	Beru-taxi brute force, geometry, implementation	900	x14238
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x14248
1667A	Make it Increasing brute force, greedy, math	1300	x14321
761A	Dasha and Stairs brute force, constructive algorithms, implementation, math	1000	x14321
1397B	Power Sequence brute force, math, number theory, sortings	1500	x14338
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x14369
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x14378
1784A	Monsters (easy version) brute force, greedy	1000	x14422
1826A	Trust Nobody brute force, greedy, implementation, sortings	1200	x14456
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x14533
1637B	MEX and Array brute force, dp, greedy, math	1100	x14599
908A	New Year and Counting Cards brute force, implementation	800	x14599
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x14650
1271A	Suits brute force, greedy, math	800	x14675
1450B	Balls of Steel brute force, geometry, greedy	1000	x14859
1415A	Prison Break brute force, math	800	x14915
1293A	ConneR and the A.R.C. Markland-N binary search, brute force, implementation	1100	x14954
1898A	Milica and String brute force, implementation, strings	800	x14964
17A	Noldbach problem brute force, math, number theory	1000	x14985
1647B	Madoka and the Elegant Gift brute force, constructive algorithms, graphs, implementation	1200	x15038
1249C1	Good Numbers (easy version) brute force, greedy, implementation	1300	x15038
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15052
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x15092
1244B	Rooms and Staircases brute force, implementation	1000	x15093
1714E	Add Modulo 10 brute force, math, number theory	1400	x15169
1313A	Fast Food Restaurant brute force, greedy, implementation	900	x15169
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x15255
1823B	Sort with Step brute force, math, sortings	900	x15265
1311C	Perform the Combo brute force	1300	x15561
1904A	Forked! brute force, implementation	900	x15576
1891B	Deja Vu brute force, math, sortings	1100	x15588
1555B	Two Tables brute force	1300	x15591
1278A	Shuffle Hashing brute force, implementation, strings	1000	x15677
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x15690
433A	Kitahara Haruki's Gift brute force, implementation	1100	x15694
1881C	Perfect Square brute force, implementation	1200	x15742
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x15743
1272D	Remove One Element brute force, dp	1500	x15749
1389B	Array Walk brute force, dp, greedy	1600	x15751
1236A	Stones brute force, greedy, math	800	x15764
1598B	Groups brute force, implementation	1000	x15770
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x15826