Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
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brute force

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Problems

#	Name
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2334
1598B	Groups brute force, implementation	1000	x16147
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x23570
1594E2	Rubik's Cube Coloring (hard version) brute force, dp, implementation, math, trees	2300	x1495
1594C	Make Them Equal brute force, greedy, math, strings	1200	x19871
1593E	Gardener and Tree brute force, data structures, dfs and similar, greedy, implementation, trees	1600	x12584
1593D2	Half of Same brute force, math, number theory	1900	x5087
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1851
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x15955
1580E	Railway Construction brute force, constructive algorithms, data structures, graphs, shortest paths	3400	x76
1580D	Subsequence brute force, divide and conquer, dp, greedy, trees	2900	x935
1580C	Train Maintenance brute force, data structures, implementation	2200	x1834
1580B	Mathematics Curriculum brute force, combinatorics, dp, trees	2600	x1057
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3700
1579F	Array Stabilization (AND version) brute force, graphs, math, number theory, shortest paths	1700	x4829
1578K	Kingdom of Islands brute force, graphs, implementation	2800	x371
1578J	Just Kingdom brute force, data structures, dfs and similar	3100	x238
1575J	Jeopardy of Dropped Balls binary search, brute force, dsu, implementation	1500	x3847
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2603
1574D	The Strongest Build binary search, brute force, data structures, dfs and similar, graphs, greedy, hashing, implementation	2000	x4527
1572B	Xor of 3 brute force, constructive algorithms, greedy, two pointers	2500	x1859
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x9133
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x335
1569F	Palindromic Hamiltonian Path brute force, dfs and similar, dp, graphs, hashing	3000	x262
1569E	Playoff Restoration bitmasks, brute force, hashing, implementation, meet-in-the-middle	2600	x813
1562B	Scenes From a Memory brute force, constructive algorithms, implementation, math, number theory	1000	x19700
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5655
1561A	Simply Strange Sort brute force, implementation, sortings	800	x16611
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4427
1560F1	Nearest Beautiful Number (easy version) binary search, bitmasks, brute force, constructive algorithms, dfs and similar, greedy	1900	x6185
1559D2	Mocha and Diana (Hard Version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, trees, two pointers	2500	x2680
1559D1	Mocha and Diana (Easy Version) brute force, constructive algorithms, dsu, graphs, greedy, trees	1400	x13986
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4832
1558A	Charmed by the Game brute force, math	1300	x11124
1557E	Assiut Chess brute force, constructive algorithms, interactive	2800	x718
1557A	Ezzat and Two Subsequences brute force, math, sortings	800	x28001
1556C	Compressed Bracket Sequence brute force, implementation	1800	x5824
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x12531
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x21972
1555B	Two Tables brute force	1300	x16160
1555A	PizzaForces brute force, math	900	x28281
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12879
1553G	Common Divisor Graph brute force, constructive algorithms, dsu, graphs, hashing, math, number theory	2700	x1054
1553E	Permutation Shift brute force, combinatorics, constructive algorithms, dfs and similar, dsu, graphs, math	2100	x3368
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x18027
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x14231
1552G	A Serious Referee bitmasks, brute force, dfs and similar, sortings	3000	x534
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x7088
1551F	Equidistant Vertices brute force, combinatorics, dfs and similar, dp, trees	2200	x1857
1551E	Fixed Points binary search, brute force, dp	2000	x3984
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1552
1550C	Manhattan Subarrays brute force, geometry, greedy, implementation	1700	x10241
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x265
1548A	Web of Lies brute force, graphs, greedy	1400	x16534
1547F	Array Stabilization (GCD version) binary search, brute force, data structures, divide and conquer, number theory, two pointers	1900	x5920
1546A	AquaMoon and Two Arrays brute force, greedy	800	x18247
1545F	AquaMoon and Potatoes brute force, data structures, dp	3500	x110
1545C	AquaMoon and Permutations 2-sat, brute force, combinatorics, constructive algorithms, graph matchings, graphs	2800	x641
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x2025
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5317
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x29015
1540D	Inverse Inversions binary search, brute force, data structures	3200	x282
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2659
1538A	Stone Game brute force, dp, greedy	800	x37155
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x13156
1536B	Prinzessin der Verurteilung brute force, constructive algorithms, strings	1200	x19031
1536A	Omkar and Bad Story brute force, constructive algorithms	800	x20238
1535F	String Distance binary search, brute force, data structures, hashing, implementation, strings	3000	x455
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x30786
1535A	Fair Playoff brute force, implementation	800	x50248
1534A	Colour the Flag brute force, implementation	800	x12776
1531E2	Сортировка слиянием special problem, special problem, brute force		x338
1530C	Pursuit binary search, brute force, greedy, sortings	1200	x14715
1526D	Kill Anton brute force, constructive algorithms, data structures, math, strings	2200	x2484
1526C1	Potions (Easy Version) brute force, data structures, dp, greedy	1500	x22841
1525F	Goblins And Gnomes brute force, dp, flows, graph matchings	2800	x332
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2189
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x8809
1520G	To Go Or Not To Go? brute force, dfs and similar, graphs, greedy, implementation, shortest paths	2200	x3755
1520B	Ordinary Numbers brute force, math, number theory	800	x44858
1520A	Do Not Be Distracted! brute force, implementation	800	x52262
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x435
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x15429
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x17150
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x19689
1515H	Phoenix and Bits bitmasks, brute force, data structures, sortings	3500	x240
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x25124
1513F	Swapping Problem brute force, constructive algorithms, data structures, sortings	2500	x1290
1512G	Short Task brute force, dp, math, number theory	1700	x8311
1512F	Education brute force, dp, greedy, implementation	1900	x6283
1512E	Permutation by Sum brute force, greedy, math	1600	x10565
1512A	Spy Detected! brute force, implementation	800	x65277
1511G	Chips on a Board bitmasks, brute force, data structures, dp, games, two pointers	2700	x803
1511F	Chainword brute force, data structures, dp, matrices, string suffix structures, strings	2700	x447
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11590
1511C	Yet Another Card Deck brute force, data structures, implementation, trees	1100	x24254
1510K	King's Task brute force, graphs, implementation	1200	x5512
1508F	Optimal Encoding brute force, data structures	3500	x128
1508E	Tree Calendar brute force, constructive algorithms, data structures, dfs and similar, sortings, trees	3100	x349
1508C	Complete the MST bitmasks, brute force, data structures, dfs and similar, dsu, graphs, greedy, trees	2500	x1517