Problemset - Codeforces

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Codeforces Round 940 (Div. 2)
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constructive algorithms

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Problems

#	Name
1408B	Arrays Sum constructive algorithms, greedy, math	1400	x9739
1103A	Grid game constructive algorithms, implementation	1400	x9558
1266C	Diverse Matrix constructive algorithms, greedy, math, number theory	1400	x9340
1750C	Complementary XOR constructive algorithms, implementation	1400	x9194
525B	Pasha and String constructive algorithms, greedy, math, strings	1400	x9160
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x9121
1863D	Two-Colored Dominoes constructive algorithms, greedy	1400	x8866
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x8501
711B	Chris and Magic Square constructive algorithms, implementation	1400	x8344
357B	Flag Day constructive algorithms, implementation	1400	x8007
1088C	Ehab and a 2-operation task constructive algorithms, greedy, math	1400	x7926
544B	Sea and Islands constructive algorithms, implementation	1400	x7794
359B	Permutation constructive algorithms, dp, math	1400	x7692
479B	Towers brute force, constructive algorithms, greedy, implementation, sortings	1400	x7531
1004C	Sonya and Robots constructive algorithms, implementation	1400	x7418
675B	Restoring Painting brute force, constructive algorithms, math	1400	x7275
911C	Three Garlands brute force, constructive algorithms	1400	x6948
727C	Guess the Array constructive algorithms, interactive, math	1400	x6862
369B	Valera and Contest constructive algorithms, implementation, math	1400	x6279
808C	Tea Party constructive algorithms, greedy, sortings	1400	x5943
313C	Ilya and Matrix constructive algorithms, greedy, implementation, sortings	1400	x5514
689A	Mike and Cellphone brute force, constructive algorithms, implementation	1400	x5180
803A	Maximal Binary Matrix constructive algorithms	1400	x4733
417C	Football constructive algorithms, graphs, implementation	1400	x4601
748C	Santa Claus and Robot constructive algorithms, math	1400	x4535
865A	Save the problem! constructive algorithms	1400	x4134
8B	Obsession with Robots constructive algorithms, graphs, implementation	1400	x4056
632B	Alice, Bob, Two Teams brute force, constructive algorithms	1400	x3878
286A	Lucky Permutation constructive algorithms, math	1400	x3101
335A	Banana binary search, constructive algorithms, greedy	1400	x2498
637C	Promocodes with Mistakes *special problem, brute force, constructive algorithms, implementation	1400	x2408
649B	Этажи constructive algorithms	1400	x517
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x21917
1368B	Codeforces Subsequences brute force, constructive algorithms, greedy, math, strings	1500	x18957
1399D	Binary String To Subsequences constructive algorithms, data structures, greedy, implementation	1500	x17611
1372C	Omkar and Baseball constructive algorithms, math	1500	x17322
1400C	Binary String Reconstruction 2-sat, brute force, constructive algorithms, greedy	1500	x16690
1352F	Binary String Reconstruction constructive algorithms, dfs and similar, math	1500	x16130
1426D	Non-zero Segments constructive algorithms, data structures, greedy, sortings	1500	x15428
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x14574
1630A	And Matching bitmasks, constructive algorithms	1500	x14014
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x13645
268C	Beautiful Sets of Points constructive algorithms, implementation	1500	x13221
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13046
1368C	Even Picture constructive algorithms	1500	x12979
1562C	Rings constructive algorithms, math	1500	x12865
1325C	Ehab and Path-etic MEXs constructive algorithms, dfs and similar, greedy, trees	1500	x12828
1283C	Friends and Gifts constructive algorithms, data structures, math	1500	x12762
1506E	Restoring the Permutation constructive algorithms, implementation	1500	x12551
1473C	No More Inversions constructive algorithms, math	1500	x12339
1242A	Tile Painting constructive algorithms, math, number theory	1500	x12251
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12078
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x11941
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x11804
743C	Vladik and fractions brute force, constructive algorithms, math, number theory	1500	x11790
1873G	ABBC or BACB constructive algorithms, greedy	1500	x11491
1774B	Coloring constructive algorithms, greedy, math	1500	x11486
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x11073
441C	Valera and Tubes constructive algorithms, dfs and similar, implementation	1500	x10815
1215C	Swap Letters constructive algorithms, greedy	1500	x10769
1742F	Smaller constructive algorithms, greedy, strings	1500	x10673
1710A	Color the Picture constructive algorithms, greedy, math	1500	x10559
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10218
1814C	Search in Parallel constructive algorithms, greedy, sortings	1500	x10081
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9884
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x9720
414A	Mashmokh and Numbers constructive algorithms, number theory	1500	x9617
1611D	Weights Assignment For Tree Edges constructive algorithms, trees	1500	x9453
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x9352
1439A1	Binary Table (Easy Version) constructive algorithms, implementation	1500	x9136
282C	XOR and OR constructive algorithms, implementation, math	1500	x9078
1110C	Meaningless Operations constructive algorithms, math, number theory	1500	x8902
1114B	Yet Another Array Partitioning Task constructive algorithms, greedy, sortings	1500	x8835
1186D	Vus the Cossack and Numbers constructive algorithms, greedy, math	1500	x8694
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x8660
409H	A + B Strikes Back *special problem, brute force, constructive algorithms, dsu, implementation	1500	x8616
468A	24 Game constructive algorithms, greedy, math	1500	x7741
1740D	Knowledge Cards constructive algorithms, data structures	1500	x7645
496C	Removing Columns brute force, constructive algorithms, implementation	1500	x7545
1136C	Nastya Is Transposing Matrices constructive algorithms, sortings	1500	x7474
1209C	Paint the Digits constructive algorithms, greedy, implementation	1500	x7209
1178D	Prime Graph constructive algorithms, greedy, math, number theory	1500	x7131
557B	Pasha and Tea constructive algorithms, implementation, math, sortings	1500	x7073
1043C	Smallest Word constructive algorithms, greedy, implementation	1500	x6768
1158A	The Party and Sweets binary search, constructive algorithms, greedy, implementation, math, sortings, two pointers	1500	x6712
1167D	Bicolored RBS constructive algorithms, greedy	1500	x6682
771B	Bear and Different Names constructive algorithms, greedy	1500	x6622
1119C	Ramesses and Corner Inversion constructive algorithms, greedy, implementation, math	1500	x6553
496B	Secret Combination brute force, constructive algorithms, implementation	1500	x5788
959C	Mahmoud and Ehab and the wrong algorithm constructive algorithms, trees	1500	x5665
402C	Searching for Graph brute force, constructive algorithms, graphs	1500	x5663
940C	Phone Numbers constructive algorithms, implementation, strings	1500	x5593
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5535
501C	Misha and Forest constructive algorithms, data structures, greedy, sortings, trees	1500	x5500
901A	Hashing Trees constructive algorithms, trees	1500	x5002
710C	Magic Odd Square constructive algorithms, math	1500	x4973
746D	Green and Black Tea constructive algorithms, greedy, math	1500	x4965
329A	Purification constructive algorithms, greedy	1500	x4583
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4516
1081B	Farewell Party constructive algorithms, implementation	1500	x4376