Problemset - Codeforces

Problems

#	Name
1909F1	Small Permutation Problem (Easy Version) brute force, combinatorics, dp, math	2200	x1833
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1393
1909D	Split Plus K greedy, math, number theory	1900	x4478
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x11301
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x17380
1909A	Distinct Buttons implementation, math	800	x16957
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1971
1907F	Shift and Reverse greedy, sortings	1800	x4941
1907E	Good Triples brute force, combinatorics, number theory	1600	x10453
1907D	Jumping Through Segments binary search, constructive algorithms	1400	x14499
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x20391
1907B	YetnotherrokenKeoard data structures, implementation, strings	1000	x25935
1907A	Rook implementation	800	x37020
1906M	Triangle Construction greedy, math	1700	x2753
1906L	Palindromic Parentheses constructive algorithms	2500	x541
1906K	Deck-Building Game divide and conquer, math	2500	x316
1906J	Count BFS Graph combinatorics, dp	2100	x807
1906I	Contingency Plan 2 graph matchings	2900	x153
1906H	Twin Friends combinatorics, dp	2200	x740
1906G	Grid Game 2 games, number theory	2900	x207
1906F	Maximize The Value data structures, sortings	2100	x1160
1906E	Merge Not Sort constructive algorithms, dp	1900	x1604
1906D	Spaceship Exploration binary search, geometry	2800	x124
1906C	Cursed Game interactive	3000	x191
1906B	Button Pressing bitmasks, constructive algorithms, hashing	2600	x591
1906A	Easy As ABC brute force	1000	x4480
1905F	Field Should Not Be Empty brute force, data structures, divide and conquer	2600	x553
1905E	One-X combinatorics, dfs and similar, dp, math, trees	2400	x1005
1905D	Cyclic MEX data structures, implementation, math, two pointers	2000	x3906
1905C	Largest Subsequence greedy, strings	1400	x12429
1905B	Begginer's Zelda greedy, trees	1100	x16554
1905A	Constructive Problems constructive algorithms, math	800	x23060
1904F	Beautiful Tree data structures, dfs and similar, graphs, implementation, trees	2800	x385
1904E	Tree Queries data structures, dfs and similar, graphs, implementation, trees	2500	x1027
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4495
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x6861
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x13537
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x15757
1904A	Forked! brute force, implementation	900	x20525
1903F	Babysitting 2-sat, binary search, data structures, graphs, trees	2500	x641
1903E	Geo Game greedy, interactive, math	2000	x2063
1903D2	Maximum And Queries (hard version) bitmasks, divide and conquer, dp, greedy	2500	x790
1903D1	Maximum And Queries (easy version) binary search, bitmasks, brute force, greedy	1700	x5792
1903C	Theofanis' Nightmare constructive algorithms, greedy	1400	x12074
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x12931
1903A	Halloumi Boxes brute force, greedy, sortings	800	x33607
1902F	Trees and XOR Queries Again data structures, dfs and similar, divide and conquer, graphs, implementation, math, trees	2400	x1039
1902E	Collapsing Strings data structures, strings, trees	1900	x4380
1902D	Robot Queries binary search, data structures, dp, implementation	1900	x4194
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x13956
1902B	Getting Points binary search, brute force, greedy	1100	x14571
1902A	Binary Imbalance constructive algorithms	800	x21265
1901F	Landscaping binary search, geometry, two pointers	2900	x155
1901E	Compressed Tree dfs and similar, dp, graphs, greedy, sortings, trees	2200	x1571
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x7105
1901C	Add, Divide and Floor constructive algorithms, greedy, math	1400	x12115
1901B	Chip and Ribbon greedy, math	1100	x15111
1901A	Line Trip greedy, math	800	x33511
1900F	Local Deletions binary search, data structures, implementation	2800	x293
1900E	Transitive Graph dfs and similar, dp, dsu, graphs, implementation	2100	x2106
1900D	Small GCD bitmasks, brute force, dp, math, number theory	2000	x4288
1900C	Anji's Binary Tree dfs and similar, dp, trees	1300	x11663
1900B	Laura and Operations dp, math	900	x17606
1900A	Cover in Water constructive algorithms, greedy, implementation, strings	800	x28937
1899G	Unusual Entertainment data structures, dfs and similar, dsu, shortest paths, sortings, trees, two pointers	1900	x3259
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x7761
1899E	Queue Sort greedy, implementation, sortings	1300	x15712
1899D	Yarik and Musical Notes hashing, math, number theory	1300	x13661
1899C	Yarik and Array dp, greedy, two pointers	1100	x21598
1899B	250 Thousand Tons of TNT brute force, implementation, number theory	1100	x21047
1899A	Game with Integers games, math, number theory	800	x47729
1898F	Vova Escapes the Matrix brute force, dfs and similar, divide and conquer, shortest paths	2600	x821
1898E	Sofia and Strings data structures, greedy, sortings, strings, two pointers	2200	x2305
1898D	Absolute Beauty greedy, math	1900	x5311
1898C	Colorful Grid constructive algorithms	1700	x5614
1898B	Milena and Admirer greedy, math	1500	x12087
1898A	Milica and String brute force, implementation, strings	800	x16113
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x105
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x90
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x345
1896F	Bracket Xoring constructive algorithms, greedy, implementation, math	2600	x730
1896E	Permutation Sorting data structures, sortings	2100	x2234
1896D	Ones and Twos binary search, data structures, divide and conquer, math, two pointers	1700	x5822
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9730
1896B	AB Flipping greedy, strings, two pointers	900	x14993
1896A	Jagged Swaps sortings	800	x25110
1895G	Two Characters, Two Colors binary search, data structures, dp, flows, greedy	3100	x195
1895F	Fancy Arrays combinatorics, dp, math, matrices	2600	x768
1895E	Infinite Card Game binary search, brute force, data structures, dfs and similar, dp, dsu, games, graphs, greedy, sortings, two pointers	2300	x1582
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x6118
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x11342
1895B	Points and Minimum Distance greedy, math, sortings	800	x20538
1895A	Treasure Chest math	800	x24529
1894B	Two Out of Three constructive algorithms	1000	x16056
1894A	Secret Sport implementation, strings	800	x19014
1893E	Cacti Symphony combinatorics, dfs and similar, dp, graphs	3500	x197
1893D	Colorful Constructive constructive algorithms, data structures, greedy	2600	x927
1893C	Freedom of Choice brute force, greedy, implementation	2000	x2734
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x9004
1893A	Anonymous Informant brute force, dfs and similar, graphs, implementation	1400	x12513