Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
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Problems

#	Name
319B	Psychos in a Line data structures, implementation	1900	x4194
319A	Malek Dance Club combinatorics, math	1600	x2806
317E	Princess and Her Shadow constructive algorithms, shortest paths	3100	x155
317D	Game with Powers dp, games	2300	x1086
317C	Balance constructive algorithms, dfs and similar, graphs, trees	2500	x507
317B	Ants brute force, implementation	2000	x1604
317A	Perfect Pair brute force	1600	x4666
316G3	Good Substrings string suffix structures	2400	x499
316G2	Good Substrings string suffix structures	2200	x475
316G1	Good Substrings hashing, strings	1700	x967
316F3	Suns and Rays constructive algorithms, dfs and similar, implementation	2200	x182
316F2	Suns and Rays	2300	x166
316F1	Suns and Rays dfs and similar, implementation	2200	x180
316E3	Summer Homework data structures, math	2300	x533
316E2	Summer Homework data structures, math	2300	x400
316D3	PE Lesson dp, math	2400	x601
316D2	PE Lesson dp	2300	x457
316D1	PE Lesson brute force, dp	2300	x526
316C2	Tidying Up flows, graph matchings	2300	x637
316C1	Tidying Up flows	2200	x559
316B2	EKG dfs and similar, dp	1600	x1593
314E	Sereja and Squares dp	2900	x372
314D	Sereja and Straight Lines binary search, data structures, geometry, sortings, two pointers	2500	x532
314C	Sereja and Subsequences data structures, dp	2000	x1840
314B	Sereja and Periods binary search, dfs and similar, strings	2000	x1519
314A	Sereja and Contest implementation	1600	x2079
313E	Ilya and Two Numbers constructive algorithms, data structures, dsu, greedy	2300	x554
313D	Ilya and Roads dp	2100	x1480
311E	Biologist flows	2300	x1210
311D	Interval Cubing data structures, math	2600	x673
311C	Fetch the Treasure brute force, data structures, graphs, shortest paths	2500	x486
311B	Cats Transport data structures, dp	2400	x3495
309E	Sheep binary search, greedy	2900	x233
309D	Tennis Rackets brute force, geometry	2700	x176
309C	Memory for Arrays binary search, bitmasks, greedy	1900	x1367
309B	Context Advertising dp, two pointers	2100	x719
309A	Morning run binary search, math, two pointers	2000	x489
306D	Polygon constructive algorithms, geometry	2300	x284
306C	White, Black and White Again combinatorics, number theory	2100	x486
306B	Optimizer data structures, greedy, sortings	2100	x445
305E	Playing with String games	2300	x637
305D	Olya and Graph combinatorics, math	2200	x512
305C	Ivan and Powers of Two greedy, implementation	1600	x2459
305B	Continued Fractions brute force, implementation, math	1700	x2152
305A	Strange Addition brute force, constructive algorithms, implementation	1600	x4809
303E	Random Ranking dp, math, probabilities	3000	x321
303D	Rotatable Number math, number theory	2600	x298
303C	Minimum Modular brute force, graphs, math, number theory	2400	x892
303B	Rectangle Puzzle II implementation, math	1700	x1347
301E	Yaroslav and Arrangements dp	2800	x366
301D	Yaroslav and Divisors data structures	2200	x2416
301C	Yaroslav and Algorithm constructive algorithms	2500	x475
301B	Yaroslav and Time binary search, graphs, shortest paths	2100	x2410
301A	Yaroslav and Sequence constructive algorithms	1800	x3089
300E	Empire Strikes Back binary search, math, number theory	2300	x1047
300D	Painting Square dp, fft	2300	x756
300C	Beautiful Numbers brute force, combinatorics	1800	x9666
297E	Mystic Carvings data structures	3000	x376
297D	Color the Carpet constructive algorithms	2500	x589
297C	Splitting the Uniqueness constructive algorithms	2400	x962
297B	Fish Weight constructive algorithms, greedy	1600	x3507
297A	Parity Game constructive algorithms	1700	x3628
296B	Yaroslav and Two Strings combinatorics, dp	2000	x2301
295E	Yaroslav and Points data structures	2500	x689
295D	Greg and Caves combinatorics, dp	2400	x657
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1737
295B	Greg and Graph dp, graphs, shortest paths	1700	x14392
294E	Shaass the Great dp, trees	2300	x957
294D	Shaass and Painter Robot brute force, implementation, number theory	2500	x363
294C	Shaass and Lights combinatorics, number theory	1900	x3838
294B	Shaass and Bookshelf dp, greedy	1700	x4570
293E	Close Vertices data structures, divide and conquer, trees	2700	x1463
293D	Ksusha and Square geometry, math, probabilities, two pointers	2700	x239
293C	Cube Problem brute force, math, number theory	2400	x577
293B	Distinct Paths brute force, combinatorics	2700	x872
292E	Copying Data data structures	1900	x4188
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2449
292C	Beautiful IP Addresses brute force	2000	x1174
291E	Tree-String Problem *special problem, dfs and similar, hashing, strings	2000	x1320
291D	Parallel Programming *special problem, greedy	1600	x1480
291C	Network Mask *special problem, bitmasks, brute force, implementation	1600	x1683
290F	Greedy Petya *special problem, dfs and similar, graphs, greedy	2800	x134
290E	HQ *special problem, constructive algorithms	2500	x205
290C	WTF? *special problem, graph matchings, implementation, trees	1700	x1550
288E	Polo the Penguin and Lucky Numbers dp, implementation, math	2800	x299
288D	Polo the Penguin and Trees combinatorics, dfs and similar, trees	2400	x758
288C	Polo the Penguin and XOR operation implementation, math	1700	x2328
287B	Pipeline binary search, math	1700	x9911
286E	Ladies' Shop constructive algorithms, fft, math	2800	x835
286D	Tourists data structures, sortings	2600	x379
286C	Main Sequence greedy, implementation	2100	x1515
286B	Shifting implementation	2200	x1119
285E	Positions in Permutations combinatorics, dp, math	2600	x1001
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1555
283E	Cow Tennis Tournament combinatorics, data structures, math	2800	x778
283D	Cows and Cool Sequences dp, math, number theory	2400	x547
283C	Coin Troubles dp	2100	x1450
283B	Cow Program dfs and similar, dp, graphs	1700	x3671
283A	Cows and Sequence constructive algorithms, data structures, implementation	1600	x6585
282E	Sausage Maximization bitmasks, data structures, trees	2200	x3642