Problemset - Codeforces

Problems

#	Name
1553D	Backspace dp, greedy, strings, two pointers	1500	x13846
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	x15548
1551D1	Domino (easy version) constructive algorithms, math	1700	x7136
1551C	Interesting Story greedy, sortings, strings	1500	x13401
1551B2	Wonderful Coloring - 2 binary search, constructive algorithms, data structures, greedy	1400	x15602
1550C	Manhattan Subarrays brute force, geometry, greedy, implementation	1700	x10240
1548B	Integers Have Friends binary search, data structures, divide and conquer, math, number theory, two pointers	1800	x9991
1548A	Web of Lies brute force, graphs, greedy	1400	x16532
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x14583
1545A	AquaMoon and Strange Sort sortings	1500	x13995
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7645
1542C	Strange Function math, number theory	1600	x14347
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x23371
1540A	Great Graphs constructive algorithms, graphs, greedy, shortest paths, sortings	1400	x14014
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x11727
1538F	Interesting Function binary search, dp, math, number theory	1500	x19458
1538D	Another Problem About Dividing Numbers constructive algorithms, math, number theory	1700	x13735
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x13154
1537D	Deleting Divisors games, math, number theory	1700	x12512
1536C	Diluc and Kaeya data structures, dp, hashing, number theory	1500	x14311
1535D	Playoff Tournament data structures, dfs and similar, dp, implementation, trees	1800	x7803
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16599
1534D	Lost Tree constructive algorithms, interactive, trees	1800	x6106
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x9287
1528B	Kavi on Pairing Duty combinatorics, dp, math	1700	x8767
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x14993
1527C	Sequence Pair Weight hashing, implementation, math	1600	x13652
1526C2	Potions (Hard Version) data structures, greedy	1600	x23120
1526C1	Potions (Easy Version) brute force, data structures, dp, greedy	1500	x22836
1526B	I Hate 1111 dp, math, number theory	1400	x31068
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x9869
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x8809
1520F1	Guess the K-th Zero (Easy version) binary search, interactive	1600	x11927
1520E	Arranging The Sheep greedy, math	1400	x21753
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x15428
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x17140
1517D	Explorer Space dp, graphs, shortest paths	1800	x7781
1517C	Fillomino 2 constructive algorithms, dfs and similar, greedy, implementation	1400	x13420
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x12031
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x19686
1515D	Phoenix and Socks greedy, sortings, two pointers	1500	x11452
1515C	Phoenix and Towers constructive algorithms, data structures, greedy	1400	x17264
1514C	Product 1 Modulo N greedy, number theory	1600	x15368
1513C	Add One dp, matrices	1600	x14177
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x14961
1512G	Short Task brute force, dp, math, number theory	1700	x8311
1512E	Permutation by Sum brute force, greedy, math	1600	x10564
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11585
1509C	The Sports Festival dp, greedy	1800	x12749
1508B	Almost Sorted binary search, combinatorics, constructive algorithms, implementation	1800	x4038
1506E	Restoring the Permutation constructive algorithms, implementation	1500	x13178
1506D	Epic Transformation constructive algorithms, data structures, greedy	1400	x22189
1505E	Cakewalk *special problem, greedy, implementation, shortest paths	1800	x1808
1505D	Xenolith? Hippodrome? *special problem, number theory	1800	x800
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	x13495
1500A	Going Home brute force, hashing, implementation, math	1800	x8913
1499C	Minimum Grid Path brute force, data structures, greedy, math	1500	x12718
1498C	Planar Reflections brute force, data structures, dp	1600	x9815
1497E1	Square-Free Division (easy version) data structures, dp, greedy, math, number theory, two pointers	1700	x8415
1497C2	k-LCM (hard version) constructive algorithms, math	1600	x17467
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x14442
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	x7992
1490F	Equalize the Array binary search, data structures, greedy, math, sortings	1500	x16322
1490E	Accidental Victory binary search, data structures, greedy	1400	x19259
1488B	RBS Deletion *special problem, greedy	1800	x568
1487D	Pythagorean Triples binary search, brute force, math, number theory	1500	x18138
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	x12367
1486B	Eastern Exhibition binary search, geometry, shortest paths, sortings	1500	x16155
1485C	Floor and Mod binary search, brute force, math, number theory	1700	x10055
1482C	Basic Diplomacy brute force, constructive algorithms, greedy, implementation	1600	x9436
1482B	Restore Modulo implementation, math	1500	x9226
1481C	Fence Painting brute force, constructive algorithms, greedy	1600	x11707
1479A	Searching Local Minimum binary search, interactive, ternary search	1700	x11776
1478C	Nezzar and Symmetric Array implementation, math, sortings	1700	x9848
1477A	Nezzar and Board constructive algorithms, math, number theory	1800	x6000
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	x13842
1475D	Cleaning the Phone binary search, dp, sortings, two pointers	1800	x10250
1475C	Ball in Berland combinatorics, graphs, math	1400	x21460
1474C	Array Destruction brute force, constructive algorithms, data structures, greedy, implementation, sortings	1700	x12810
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	x10800
1468K	The Robot brute force, implementation	1600	x5166
1468J	Road Reform dsu, graphs, greedy	1800	x4421
1468F	Full Turn geometry, hashing, number theory	1700	x3781
1468D	Firecrackers binary search, sortings	1700	x4735
1468C	Berpizza data structures, implementation	1400	x8131
1467B	Hills And Valleys brute force, implementation	1700	x11010