Problemset - Codeforces

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

#	Name
1553D	Backspace dp, greedy, strings, two pointers	1500	x13848
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x7088
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5951
1552B	Running for Gold combinatorics, graphs, greedy, sortings	1500	x15554
1551D1	Domino (easy version) constructive algorithms, math	1700	x7138
1551C	Interesting Story greedy, sortings, strings	1500	x13402
1551B2	Wonderful Coloring - 2 binary search, constructive algorithms, data structures, greedy	1400	x15602
1550C	Manhattan Subarrays brute force, geometry, greedy, implementation	1700	x10242
1548B	Integers Have Friends binary search, data structures, divide and conquer, math, number theory, two pointers	1800	x9996
1548A	Web of Lies brute force, graphs, greedy	1400	x16534
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x14585
1545A	AquaMoon and Strange Sort sortings	1500	x14000
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7645
1542C	Strange Function math, number theory	1600	x14350
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x23384
1540A	Great Graphs constructive algorithms, graphs, greedy, shortest paths, sortings	1400	x14016
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x11730
1538F	Interesting Function binary search, dp, math, number theory	1500	x19477
1538D	Another Problem About Dividing Numbers constructive algorithms, math, number theory	1700	x13738
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x13157
1537D	Deleting Divisors games, math, number theory	1700	x12514
1536C	Diluc and Kaeya data structures, dp, hashing, number theory	1500	x14316
1535D	Playoff Tournament data structures, dfs and similar, dp, implementation, trees	1800	x7805
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16602
1534D	Lost Tree constructive algorithms, interactive, trees	1800	x6109
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x9287
1528B	Kavi on Pairing Duty combinatorics, dp, math	1700	x8769
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x15000
1527C	Sequence Pair Weight hashing, implementation, math	1600	x13655
1526C2	Potions (Hard Version) data structures, greedy	1600	x23133
1526C1	Potions (Easy Version) brute force, data structures, dp, greedy	1500	x22847
1526B	I Hate 1111 dp, math, number theory	1400	x31075
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x9870
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x8810
1520F1	Guess the K-th Zero (Easy version) binary search, interactive	1600	x11931
1520E	Arranging The Sheep greedy, math	1400	x21757
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x15430
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x17153
1517D	Explorer Space dp, graphs, shortest paths	1800	x7781
1517C	Fillomino 2 constructive algorithms, dfs and similar, greedy, implementation	1400	x13422
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x12034
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x19691
1515D	Phoenix and Socks greedy, sortings, two pointers	1500	x11452
1515C	Phoenix and Towers constructive algorithms, data structures, greedy	1400	x17266
1514C	Product 1 Modulo N greedy, number theory	1600	x15371
1513C	Add One dp, matrices	1600	x14178
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x14966
1512G	Short Task brute force, dp, math, number theory	1700	x8311
1512E	Permutation by Sum brute force, greedy, math	1600	x10565
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11591
1509C	The Sports Festival dp, greedy	1800	x12752
1508B	Almost Sorted binary search, combinatorics, constructive algorithms, implementation	1800	x4040
1506E	Restoring the Permutation constructive algorithms, implementation	1500	x13180
1506D	Epic Transformation constructive algorithms, data structures, greedy	1400	x22192
1505E	Cakewalk *special problem, greedy, implementation, shortest paths	1800	x1809
1505D	Xenolith? Hippodrome? *special problem, number theory	1800	x801
1505C	Fibonacci Words *special problem, implementation	1400	x6465
1505B	DMCA *special problem, implementation, number theory	1600	x6199
1503B	3-Coloring constructive algorithms, games, interactive	1700	x7088
1503A	Balance the Bits constructive algorithms, greedy	1600	x13499
1500A	Going Home brute force, hashing, implementation, math	1800	x8914
1499C	Minimum Grid Path brute force, data structures, greedy, math	1500	x12719
1498C	Planar Reflections brute force, data structures, dp	1600	x9816
1497E1	Square-Free Division (easy version) data structures, dp, greedy, math, number theory, two pointers	1700	x8416
1497C2	k-LCM (hard version) constructive algorithms, math	1600	x17474
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x14444
1492C	Maximum width binary search, data structures, dp, greedy, two pointers	1500	x16234
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x7238
1491C	Pekora and Trampoline brute force, data structures, dp, greedy, implementation	1700	x7993
1490F	Equalize the Array binary search, data structures, greedy, math, sortings	1500	x16328
1490E	Accidental Victory binary search, data structures, greedy	1400	x19264
1488B	RBS Deletion *special problem, greedy	1800	x568
1487D	Pythagorean Triples binary search, brute force, math, number theory	1500	x18141
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x14252
1486C1	Guessing the Greatest (easy version) binary search, interactive	1600	x12368
1486B	Eastern Exhibition binary search, geometry, shortest paths, sortings	1500	x16159
1485C	Floor and Mod binary search, brute force, math, number theory	1700	x10056
1482C	Basic Diplomacy brute force, constructive algorithms, greedy, implementation	1600	x9437
1482B	Restore Modulo implementation, math	1500	x9228
1481C	Fence Painting brute force, constructive algorithms, greedy	1600	x11709
1479A	Searching Local Minimum binary search, interactive, ternary search	1700	x11779
1478C	Nezzar and Symmetric Array implementation, math, sortings	1700	x9850
1477A	Nezzar and Board constructive algorithms, math, number theory	1800	x6001
1476D	Journey dfs and similar, dp, dsu, implementation	1700	x8676
1476C	Longest Simple Cycle dp, graphs, greedy	1600	x11442
1475E	Advertising Agency combinatorics, math, sortings	1600	x13848
1475D	Cleaning the Phone binary search, dp, sortings, two pointers	1800	x10254
1475C	Ball in Berland combinatorics, graphs, math	1400	x21471
1474C	Array Destruction brute force, constructive algorithms, data structures, greedy, implementation, sortings	1700	x12812
1473D	Program data structures, dp, implementation, strings	1700	x9747
1473C	No More Inversions constructive algorithms, math	1500	x12740
1472E	Correct Placement binary search, data structures, dp, sortings, two pointers	1700	x8142
1469D	Ceil Divisions brute force, constructive algorithms, math, number theory	1700	x9499
1469C	Building a Fence dp, greedy, implementation, two pointers	1600	x10803
1468K	The Robot brute force, implementation	1600	x5166
1468J	Road Reform dsu, graphs, greedy	1800	x4422
1468F	Full Turn geometry, hashing, number theory	1700	x3781
1468D	Firecrackers binary search, sortings	1700	x4738
1468C	Berpizza data structures, implementation	1400	x8135
1467B	Hills And Valleys brute force, implementation	1700	x11013