Problemset - Codeforces

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

#	Name
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1618
463D	Gargari and Permutations dfs and similar, dp, graphs, implementation	1900	x6565
463C	Gargari and Bishops greedy, hashing, implementation	1900	x8768
461B	Appleman and Tree dfs and similar, dp, trees	2000	x5791
459E	Pashmak and Graph dp, sortings	1900	x5547
459C	Pashmak and Buses combinatorics, constructive algorithms, math	1900	x6193
457C	Elections brute force	2100	x881
457B	Distributed Join greedy	1900	x1135
455C	Civilization dfs and similar, dp, dsu, ternary search, trees	2100	x5779
455B	A Lot of Games dfs and similar, dp, games, implementation, strings, trees	1900	x6015
453B	Little Pony and Harmony Chest bitmasks, brute force, dp	2000	x4754
452D	Washer, Dryer, Folder greedy, implementation	1900	x1525
452C	Magic Trick combinatorics, math, probabilities	2100	x1633
451D	Count Good Substrings math	2000	x4785
449B	Jzzhu and Cities graphs, greedy, shortest paths	2000	x8750
448C	Painting Fence divide and conquer, dp, greedy	1900	x8307
446B	DZY Loves Modification brute force, data structures, greedy	2000	x3600
441D	Valera and Swaps constructive algorithms, dsu, graphs, implementation, math, string suffix structures	2100	x1112
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1574
437D	The Child and Zoo dsu, sortings	1900	x3399
435D	Special Grid brute force, dp, greedy	2000	x761
433D	Nanami's Digital Board dsu, implementation	2000	x1245
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x9294
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2326
427E	Police Patrol greedy, implementation, math, ternary search	2000	x1435
421D	Bug in Code binary search, data structures, sortings	1900	x541
420C	Bug in Code data structures, graphs, implementation, two pointers	1900	x1268
417D	Cunning Gena bitmasks, dp, greedy, sortings	1900	x2532
414C	Mashmokh and Reverse Operation combinatorics, divide and conquer	2100	x2227
413D	2048 bitmasks, dp	2000	x822
412E	E-mail Addresses implementation	1900	x847
412D	Giving Awards dfs and similar	2000	x1970
409F	000001 *special problem	1900	x2093
404D	Minesweeper 1D dp, implementation	1900	x2162
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x4199
400E	Inna and Binary Logic binary search, bitmasks, data structures	2100	x972
400D	Dima and Bacteria dsu, graphs, shortest paths	2000	x2918
388C	Fox and Card Game games, greedy, sortings	2000	x3433
388B	Fox and Minimal path bitmasks, constructive algorithms, graphs, implementation, math	1900	x2482
386D	Game with Points dp, graphs, implementation, shortest paths	2100	x443
386C	Diverse Substrings dp, strings, two pointers	2000	x804
383C	Propagating tree data structures, dfs and similar, trees	2000	x6560
382B	Number Busters binary search, math	2000	x1412
380C	Sereja and Brackets data structures, schedules	2000	x15346
379D	New Year Letter bitmasks, brute force, dp	2000	x1566
377B	Preparing for the Contest binary search, data structures, greedy, sortings	1900	x2120
374D	Inna and Sequence binary search, data structures, dp, trees	2000	x885
374C	Inna and Dima dfs and similar, dp, graphs, implementation	1900	x2756
374A	Inna and Pink Pony greedy, implementation	2000	x2941
372C	Watching Fireworks is Fun data structures, dp, math	2100	x4182
372B	Counting Rectangles is Fun brute force, divide and conquer, dp	1900	x2648
371E	Subway Innovation greedy, math, two pointers	2000	x1309
370D	Broken Monitor brute force, constructive algorithms, greedy, implementation	2100	x635
367C	Sereja and the Arrangement of Numbers graphs, greedy, sortings	2000	x1795
367B	Sereja ans Anagrams binary search, data structures	1900	x2477
366D	Dima and Trap Graph binary search, data structures, dfs and similar, dsu, shortest paths, two pointers	2000	x1567
366C	Dima and Salad dp	1900	x4876
362D	Fools and Foolproof Roads data structures, dfs and similar, dsu, graphs, greedy	2100	x931
362C	Insertion Sort data structures, dp, implementation, math	1900	x1794
360B	Levko and Array binary search, dp	2000	x3026
359D	Pair of Numbers binary search, brute force, data structures, math, two pointers	2000	x5142
359C	Prime Number math, number theory	1900	x3149
358C	Dima and Containers constructive algorithms, greedy, implementation	2000	x2034
356C	Compartments combinatorics, constructive algorithms, greedy, implementation	2100	x1273
356B	Xenia and Hamming implementation, math	1900	x1934
354C	Vasya and Beautiful Arrays brute force, dp, number theory	2100	x3083
353D	Queue constructive algorithms, dp	2000	x2927
353B	Two Heaps combinatorics, constructive algorithms, greedy, implementation, math, sortings	1900	x2292
351B	Jeff and Furik combinatorics, dp, probabilities	1900	x2406
348B	Apple Tree dfs and similar, number theory, trees	2100	x2103
346B	Lucky Common Subsequence dp, strings	2000	x3571
345C	Counting Fridays *special problem	2000	x126
345B	Triskaidekaphobia *special problem	2100	x125
343D	Water Tree data structures, dfs and similar, graphs, trees	2100	x5872
343C	Read Time binary search, greedy, two pointers	1900	x3024
342D	Xenia and Dominoes bitmasks, dfs and similar, dp	2100	x500
342C	Cupboard and Balloons geometry	1900	x1859
340E	Iahub and Permutations combinatorics, math	2000	x2487
340B	Maximal Area Quadrilateral brute force, geometry	2100	x2090
337D	Book of Evil dfs and similar, divide and conquer, dp, trees	2000	x6199
336D	Vasily the Bear and Beautiful Strings combinatorics, math, number theory	2100	x1013
336B	Vasily the Bear and Fly math	1900	x1219
335C	More Reclamation games	2100	x537
335B	Palindrome constructive algorithms, dp	1900	x2110
333D	Characteristics of Rectangles binary search, bitmasks, brute force, implementation, sortings	2100	x2124
331B2	Shave Beaver! data structures	1900	x726
327D	Block Tower constructive algorithms, dfs and similar, graphs	1900	x2288
321C	Ciel the Commander constructive algorithms, dfs and similar, divide and conquer, greedy, trees	2100	x7428
321B	Ciel and Duel dp, flows, greedy	1900	x3127
319C	Kalila and Dimna in the Logging Industry dp, geometry	2100	x5288
319B	Psychos in a Line data structures, implementation	1900	x4192
317B	Ants brute force, implementation	2000	x1604
314C	Sereja and Subsequences data structures, dp	2000	x1840
314B	Sereja and Periods binary search, dfs and similar, strings	2000	x1519
313D	Ilya and Roads dp	2100	x1477
309C	Memory for Arrays binary search, bitmasks, greedy	1900	x1366
309B	Context Advertising dp, two pointers	2100	x719
309A	Morning run binary search, math, two pointers	2000	x488
306C	White, Black and White Again combinatorics, number theory	2100	x486
306B	Optimizer data structures, greedy, sortings	2100	x445