Problemset - Codeforces

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

#	Name
770C	Online Courses In BSU *special problem, dfs and similar, graphs, implementation	1500	x2659
770B	Maximize Sum of Digits *special problem, implementation, math	1300	x2826
770A	New Password *special problem, implementation	800	x20048
769D	k-Interesting Pairs Of Integers *special problem, bitmasks, brute force, meet-in-the-middle	1700	x2355
769C	Cycle In Maze *special problem, dfs and similar, graphs, greedy, shortest paths	1700	x2307
769B	News About Credit *special problem, greedy, two pointers	1200	x3300
769A	Year of University Entrance *special problem, implementation, sortings	800	x5793
768G	The Winds of Winter binary search, data structures	3300	x363
768F	Barrels and boxes brute force, combinatorics, math, number theory, probabilities	2300	x1033
768E	Game of Stones bitmasks, dp, games	2100	x2994
768D	Jon and Orbs dp, math, probabilities	2200	x2974
768C	Jon Snow and his Favourite Number brute force, dp, implementation, sortings	1800	x3813
768B	Code For 1 constructive algorithms, dfs and similar, divide and conquer	1600	x6004
768A	Oath of the Night's Watch constructive algorithms, sortings	900	x27792
767E	Change-free greedy	2400	x985
767D	Cartons of milk binary search, data structures, greedy, sortings, two pointers	2100	x2251
767C	Garland dfs and similar, graphs, greedy, trees	2000	x4199
767B	The Queue brute force, greedy	2100	x2141
767A	Snacktower data structures, implementation	1100	x20446
766E	Mahmoud and a xor trip bitmasks, constructive algorithms, data structures, dfs and similar, dp, math, trees	2100	x3041
766D	Mahmoud and a Dictionary data structures, dfs and similar, dp, dsu, graphs	2000	x3429
766C	Mahmoud and a Message brute force, dp, greedy, strings	1700	x4498
766B	Mahmoud and a Triangle constructive algorithms, geometry, greedy, math, number theory, sortings	1000	x33231
766A	Mahmoud and Longest Uncommon Subsequence constructive algorithms, strings	1000	x30787
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x86
765F	Souvenirs data structures	3100	x2088
765E	Tree Folding dfs and similar, dp, greedy, implementation, trees	2200	x1286
765D	Artsem and Saunders constructive algorithms, dsu, math	1700	x2486
765C	Table Tennis Game 2 math	1200	x6993
765B	Code obfuscation greedy, implementation, strings	1100	x7138
765A	Neverending competitions implementation, math	900	x9034
764B	Timofey and cubes constructive algorithms, implementation	900	x11898
764A	Taymyr is calling you brute force, implementation, math	800	x16372
763E	Timofey and our friends animals data structures, divide and conquer, dsu	2900	x506
763D	Timofey and a flat tree data structures, graphs, hashing, shortest paths, trees	2900	x567
763C	Timofey and remoduling brute force, implementation, math, number theory	2600	x713
763B	Timofey and rectangles constructive algorithms, geometry	2100	x2826
763A	Timofey and a tree dfs and similar, dp, dsu, graphs, implementation, trees	1600	x10638
762F	Tree nesting combinatorics, graphs, trees	2800	x381
762E	Radio stations binary search, data structures	2200	x1415
762D	Maximum path dp, greedy, implementation	2300	x1581
762C	Two strings binary search, hashing, strings, two pointers	2100	x2581
762B	USB vs. PS/2 greedy, implementation, sortings, two pointers	1400	x8309
762A	k-th divisor math, number theory	1400	x20135
761F	Dasha and Photos brute force, data structures, dp, implementation	2600	x417
761E	Dasha and Puzzle constructive algorithms, dfs and similar, graphs, greedy, trees	2000	x2183
761D	Dasha and Very Difficult Problem binary search, brute force, constructive algorithms, greedy, sortings	1700	x4068
761C	Dasha and Password brute force, dp, implementation	1500	x5887
761B	Dasha and friends brute force, implementation, math	1300	x6880
761A	Dasha and Stairs brute force, constructive algorithms, implementation, math	1000	x14550
760B	Frodo and pillows binary search, greedy	1500	x6633
760A	Petr and a calendar implementation, math	800	x8246
758F	Geometrical Progression brute force, math, number theory	2400	x639
758E	Broken Tree dfs and similar, dp, graphs, greedy, trees	2600	x497
758D	Ability To Convert constructive algorithms, dp, greedy, math, strings	2000	x2735
758C	Unfair Poll binary search, constructive algorithms, implementation, math	1700	x3885
758B	Blown Garland brute force, implementation, number theory	1100	x10225
758A	Holiday Of Equality implementation, math	800	x61819
757G	Can Bash Save the Day? data structures, divide and conquer, graphs, trees	3400	x507
757F	Team Rocket Rises Again data structures, graphs, shortest paths	2800	x1177
757E	Bash Plays with Functions brute force, combinatorics, dp, number theory	2500	x1340
757D	Felicity's Big Secret Revealed bitmasks, dp	2200	x1408
757C	Felicity is Coming! data structures, hashing, sortings, strings	1900	x2373
757B	Bash's Big Day greedy, math, number theory	1400	x10325
757A	Gotta Catch Em' All! implementation	1000	x11280
756F	Long number expression parsing, math, number theory	3400	x99
756E	Byteland coins combinatorics, dp, math	3200	x184
756D	Bacterial Melee brute force, combinatorics, dp, string suffix structures	2400	x1006
756C	Nikita and stack data structures	2200	x1353
756B	Travel Card binary search, dp	1600	x3660
756A	Pavel and barbecue constructive algorithms, dfs and similar	1700	x3072
755G	PolandBall and Many Other Balls combinatorics, divide and conquer, dp, fft, math, number theory	3200	x923
755F	PolandBall and Gifts bitmasks, dp, greedy	2600	x1440
755E	PolandBall and White-Red graph constructive algorithms, graphs, shortest paths	2400	x855
755D	PolandBall and Polygon data structures	2000	x2517
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x12577
755B	PolandBall and Game binary search, data structures, games, greedy, sortings, strings	1100	x11356
755A	PolandBall and Hypothesis brute force, graphs, math, number theory	800	x18164
754E	Dasha and cyclic table bitmasks, brute force, fft, strings, trees	2600	x503
754D	Fedor and coupons binary search, data structures, greedy, sortings	2100	x2465
754C	Vladik and chat brute force, constructive algorithms, dp, implementation, strings	2200	x943
754B	Ilya and tic-tac-toe game brute force, implementation	1100	x7258
754A	Lesha and array splitting constructive algorithms, greedy, implementation	1200	x8727
753C	Interactive Bulls and Cows (Hard) brute force, constructive algorithms, interactive	2500	x308
753B	Interactive Bulls and Cows (Easy) brute force, constructive algorithms, implementation	1600	x1212
753A	Santa Claus and Candies dp, greedy, math	1000	x9119
750H	New Year and Snowy Grid dfs and similar, dsu, graphs, interactive	3500	x194
750G	New Year and Binary Tree Paths bitmasks, brute force, combinatorics, dp	3200	x452
750F	New Year and Finding Roots constructive algorithms, implementation, interactive, trees	2800	x488
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x1607
750D	New Year and Fireworks brute force, data structures, dfs and similar, dp, implementation	1900	x3084
750C	New Year and Rating binary search, greedy, math	1600	x6569
750B	New Year and North Pole geometry, implementation	1300	x9493
750A	New Year and Hurry binary search, brute force, implementation, math	800	x76684
749E	Inversions After Shuffle data structures, probabilities	2400	x1113
749D	Leaving Auction binary search, data structures	2000	x2572
749C	Voting greedy, implementation, two pointers	1500	x5991
749B	Parallelogram is Back brute force, constructive algorithms, geometry	1200	x8513
749A	Bachgold Problem greedy, implementation, math, number theory	800	x50013
748F	Santa Clauses and a Soccer Championship constructive algorithms, dfs and similar, graphs, trees	2300	x661