Problemset - Codeforces

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

#	Name
815A	Karen and Game brute force, greedy, implementation	1700	x5675
814E	An unavoidable detour for home combinatorics, dp, graphs, shortest paths	2600	x672
814D	An overnight dance in discotheque dfs and similar, dp, geometry, greedy, trees	2000	x2369
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x6679
814B	An express train to reveries constructive algorithms	1300	x5639
814A	An abandoned sentiment from past constructive algorithms, greedy, implementation, sortings	900	x10447
813F	Bipartite Checking data structures, dsu, graphs	2500	x1373
813E	Army Creation binary search, data structures	2200	x2457
813D	Two Melodies dp, flows	2600	x1034
813C	The Tag Game dfs and similar, graphs	1700	x6067
813B	The Golden Age brute force, math	1800	x4002
813A	The Contest implementation	1100	x5106
812E	Sagheer and Apple Tree games, trees	2300	x1108
812D	Sagheer and Kindergarten dfs and similar, graphs, implementation, trees	2700	x330
812C	Sagheer and Nubian Market binary search, sortings	1500	x14150
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x5216
812A	Sagheer and Crossroads implementation	1200	x6222
811E	Vladik and Entertaining Flags data structures, dsu, graphs	2600	x877
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1775
811C	Vladik and Memorable Trip dp, implementation	1900	x3292
811B	Vladik and Complicated Book implementation, sortings	1200	x6512
811A	Vladik and Courtesy brute force, implementation	800	x11933
810B	Summer sell-off greedy, sortings	1300	x11519
810A	Straight <<A>> implementation, math	900	x8853
809E	Surprise me! divide and conquer, math, number theory, trees	3100	x736
809D	Hitchhiking in the Baltic States data structures, dp	2900	x860
809C	Find a car combinatorics, divide and conquer, dp	2600	x813
809B	Glad to see you! binary search, interactive	2200	x1689
809A	Do you want a date? implementation, math, sortings	1500	x4706
808G	Anthem of Berland dp, strings	2300	x2775
808F	Card Game binary search, flows, graphs	2400	x1209
808E	Selling Souvenirs binary search, dp, greedy, ternary search	2300	x1865
808D	Array Division binary search, data structures, implementation	1900	x7032
808C	Tea Party constructive algorithms, greedy, sortings	1400	x6210
808B	Average Sleep Time data structures, implementation, math	1300	x7865
808A	Lucky Year implementation	900	x9382
807B	T-Shirt Hunt brute force, implementation	1300	x3553
807A	Is it rated? implementation, sortings	900	x20856
805B	3-palindrome constructive algorithms	1000	x17040
805A	Fake NP greedy, math	1000	x18098
804F	Fake bullions combinatorics, dfs and similar, dp, graphs, number theory	3400	x164
804E	The same permutation constructive algorithms	3100	x432
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1334
804C	Ice cream coloring constructive algorithms, dfs and similar, greedy	2200	x1845
804B	Minimum number of steps combinatorics, greedy, implementation, math	1400	x9691
804A	Find Amir constructive algorithms, greedy, math	1000	x15521
803G	Periodic RMQ Problem data structures	2300	x1605
803F	Coprime Subsequences bitmasks, combinatorics, number theory	2000	x3356
803E	Roma and Poker dp, graphs	2000	x2254
803D	Magazine Ad binary search, greedy	1900	x3303
803C	Maximal GCD constructive algorithms, greedy, math	1900	x5144
803B	Distances to Zero constructive algorithms	1200	x6599
803A	Maximal Binary Matrix constructive algorithms	1400	x4946
802O	April Fools' Problem (hard) binary search, data structures, flows	2900	x973
802N	April Fools' Problem (medium) binary search, flows, graphs	2400	x1203
802M	April Fools' Problem (easy) greedy, sortings	1200	x3156
802L	Send the Fool Further! (hard) dfs and similar, dp, math, trees	2400	x314
802K	Send the Fool Further! (medium) dp, trees	2100	x641
802J	Send the Fool Further! (easy) dfs and similar, graphs, trees	1400	x4769
802I	Fake News (hard) string suffix structures	2300	x1561
802H	Fake News (medium) constructive algorithms, strings	2200	x467
802G	Fake News (easy) implementation, strings	800	x7074
802F	Marmots (hard) math, probabilities	2800	x128
802E	Marmots (medium) math	2200	x254
802D	Marmots (easy) math	2100	x458
802C	Heidi and Library (hard) flows	2600	x587
802B	Heidi and Library (medium) data structures, greedy	1800	x1142
802A	Heidi and Library (easy) greedy	1800	x1388
801B	Valued Keys constructive algorithms, greedy, strings	900	x10395
801A	Vicious Keyboard brute force	1100	x7344
799G	Cut the pie binary search, data structures, geometry	3500	x116
799F	Beautiful fountains rows data structures	3500	x450
799E	Aquarium decoration data structures, greedy, two pointers	2500	x937
799D	Field expansion brute force, dp, meet-in-the-middle	2100	x2067
799C	Fountains binary search, data structures, implementation	1800	x3782
799B	T-shirt buying data structures, implementation	1400	x8935
799A	Carrot Cakes brute force, implementation	1100	x19044
798E	Mike and code of a permutation constructive algorithms, data structures, graphs, sortings	3000	x492
798D	Mike and distribution constructive algorithms, sortings	2400	x1928
798C	Mike and gcd problem dp, greedy, number theory	1700	x5841
798B	Mike and strings brute force, dp, strings	1300	x8433
798A	Mike and palindrome brute force, constructive algorithms, strings	1000	x21883
797F	Mice and Holes data structures, dp, greedy, sortings	2600	x1231
797E	Array Queries brute force, data structures, dp	2000	x4501
797D	Broken BST data structures, dfs and similar	2100	x1840
797C	Minimal string data structures, greedy, strings	1700	x6809
797B	Odd sum dp, greedy, implementation	1400	x10639
797A	k-Factorization implementation, math, number theory	1100	x15669
796F	Sequence Recovery bitmasks, data structures, greedy	2800	x181
796E	Exam Cheating binary search, dp	2400	x681
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x5795
796C	Bank Hacking constructive algorithms, data structures, dp, trees	1900	x3060
796B	Find The Bone implementation	1300	x9104
796A	Buying A House brute force, implementation	800	x13072
794G	Replace All combinatorics, dp, math	3400	x346
794F	Leha and security system data structures	2800	x833
794E	Choosing Carrot games, math	2800	x813
794D	Labelling Cities dfs and similar, graphs, hashing	2400	x823
794C	Naming Company games, greedy, sortings	1800	x3148
794B	Cutting Carrot geometry, math	1200	x6643