Problemset - Codeforces

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Codeforces Round 946 (Div. 3)
2 days
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constructive algorithms

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Problems

#	Name
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11318
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x10997
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x10741
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x10595
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x10445
1144D	Equalize Them All constructive algorithms, greedy	1400	x10065
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10007
1408B	Arrays Sum constructive algorithms, greedy, math	1400	x9772
1103A	Grid game constructive algorithms, implementation	1400	x9599
1266C	Diverse Matrix constructive algorithms, greedy, math, number theory	1400	x9365
1750C	Complementary XOR constructive algorithms, implementation	1400	x9274
525B	Pasha and String constructive algorithms, greedy, math, strings	1400	x9196
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x9190
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x8965
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x8654
711B	Chris and Magic Square constructive algorithms, implementation	1400	x8352
357B	Flag Day constructive algorithms, implementation	1400	x8045
1088C	Ehab and a 2-operation task constructive algorithms, greedy, math	1400	x7945
544B	Sea and Islands constructive algorithms, implementation	1400	x7826
359B	Permutation constructive algorithms, dp, math	1400	x7730
479B	Towers brute force, constructive algorithms, greedy, implementation, sortings	1400	x7552
1004C	Sonya and Robots constructive algorithms, implementation	1400	x7438
675B	Restoring Painting brute force, constructive algorithms, math	1400	x7299
911C	Three Garlands brute force, constructive algorithms	1400	x6962
727C	Guess the Array constructive algorithms, interactive, math	1400	x6935
369B	Valera and Contest constructive algorithms, implementation, math	1400	x6295
808C	Tea Party constructive algorithms, greedy, sortings	1400	x5962
313C	Ilya and Matrix constructive algorithms, greedy, implementation, sortings	1400	x5526
689A	Mike and Cellphone brute force, constructive algorithms, implementation	1400	x5196
803A	Maximal Binary Matrix constructive algorithms	1400	x4743
417C	Football constructive algorithms, graphs, implementation	1400	x4608
748C	Santa Claus and Robot constructive algorithms, math	1400	x4541
865A	Save the problem! constructive algorithms	1400	x4145
8B	Obsession with Robots constructive algorithms, graphs, implementation	1400	x4079
632B	Alice, Bob, Two Teams brute force, constructive algorithms	1400	x3907
286A	Lucky Permutation constructive algorithms, math	1400	x3106
335A	Banana binary search, constructive algorithms, greedy	1400	x2516
637C	Promocodes with Mistakes *special problem, brute force, constructive algorithms, implementation	1400	x2409
649B	Этажи constructive algorithms	1400	x522
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x22129
1368B	Codeforces Subsequences brute force, constructive algorithms, greedy, math, strings	1500	x19060
1399D	Binary String To Subsequences constructive algorithms, data structures, greedy, implementation	1500	x17709
1372C	Omkar and Baseball constructive algorithms, math	1500	x17395
1400C	Binary String Reconstruction 2-sat, brute force, constructive algorithms, greedy	1500	x16771
1352F	Binary String Reconstruction constructive algorithms, dfs and similar, math	1500	x16292
1426D	Non-zero Segments constructive algorithms, data structures, greedy, sortings	1500	x15512
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x14792
1630A	And Matching bitmasks, constructive algorithms	1500	x14095
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x13714
268C	Beautiful Sets of Points constructive algorithms, implementation	1500	x13265
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13241
1368C	Even Picture constructive algorithms	1500	x13007
1325C	Ehab and Path-etic MEXs constructive algorithms, dfs and similar, greedy, trees	1500	x12977
1562C	Rings constructive algorithms, math	1500	x12925
1283C	Friends and Gifts constructive algorithms, data structures, math	1500	x12802
1506E	Restoring the Permutation constructive algorithms, implementation	1500	x12622
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12410
1473C	No More Inversions constructive algorithms, math	1500	x12377
1242A	Tile Painting constructive algorithms, math, number theory	1500	x12281
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x12091
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x11949
743C	Vladik and fractions brute force, constructive algorithms, math, number theory	1500	x11860
1873G	ABBC or BACB constructive algorithms, greedy	1500	x11777
1774B	Coloring constructive algorithms, greedy, math	1500	x11617
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x11371
1742F	Smaller constructive algorithms, greedy, strings	1500	x10861
441C	Valera and Tubes constructive algorithms, dfs and similar, implementation	1500	x10859
1215C	Swap Letters constructive algorithms, greedy	1500	x10814
1710A	Color the Picture constructive algorithms, greedy, math	1500	x10622
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10431
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10213
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9929
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x9816
414A	Mashmokh and Numbers constructive algorithms, number theory	1500	x9647
1611D	Weights Assignment For Tree Edges constructive algorithms, trees	1500	x9541
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x9450
1439A1	Binary Table (Easy Version) constructive algorithms, implementation	1500	x9172
282C	XOR and OR constructive algorithms, implementation, math	1500	x9134
1110C	Meaningless Operations constructive algorithms, math, number theory	1500	x8938
1114B	Yet Another Array Partitioning Task constructive algorithms, greedy, sortings	1500	x8855
1186D	Vus the Cossack and Numbers constructive algorithms, greedy, math	1500	x8762
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x8728
409H	A + B Strikes Back *special problem, brute force, constructive algorithms, dsu, implementation	1500	x8690
468A	24 Game constructive algorithms, greedy, math	1500	x7888
1740D	Knowledge Cards constructive algorithms, data structures	1500	x7716
1136C	Nastya Is Transposing Matrices constructive algorithms, sortings	1500	x7624
496C	Removing Columns brute force, constructive algorithms, implementation	1500	x7594
1209C	Paint the Digits constructive algorithms, greedy, implementation	1500	x7225
1178D	Prime Graph constructive algorithms, greedy, math, number theory	1500	x7151
557B	Pasha and Tea constructive algorithms, implementation, math, sortings	1500	x7084
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x6871
1167D	Bicolored RBS constructive algorithms, greedy	1500	x6833
1043C	Smallest Word constructive algorithms, greedy, implementation	1500	x6782
771B	Bear and Different Names constructive algorithms, greedy	1500	x6629
1119C	Ramesses and Corner Inversion constructive algorithms, greedy, implementation, math	1500	x6563
496B	Secret Combination brute force, constructive algorithms, implementation	1500	x5810
402C	Searching for Graph brute force, constructive algorithms, graphs	1500	x5703
959C	Mahmoud and Ehab and the wrong algorithm constructive algorithms, trees	1500	x5690
940C	Phone Numbers constructive algorithms, implementation, strings	1500	x5621
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5567