Problemset - Codeforces

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Codeforces Round (Div. 2)
8 days

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Problems

#	Name
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x13097
1741E	Sending a Sequence Over the Network dp	1600	x18043
1730B	Meeting on the Line binary search, geometry, greedy, implementation, math, ternary search	1600	x17490
1722E	Counting Rectangles brute force, data structures, dp, implementation	1600	x13445
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x10369
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x15506
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x12809
1702E	Split Into Two Sets dfs and similar, dsu, graphs	1600	x18118
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x12201
1689C	Infected Tree dfs and similar, dp, trees	1600	x13584
1687A	The Enchanted Forest brute force, greedy	1600	x11453
1680C	Binary String binary search, greedy, strings, two pointers	1600	x11157
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x9380
1671D	Insert a Progression brute force, constructive algorithms, greedy	1600	x8476
1665C	Tree Infection binary search, greedy, sortings, trees	1600	x9905
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x8099
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x11642
1658D1	388535 (Easy Version) bitmasks, math	1600	x10017
1633D	Make Them Equal dp, greedy	1600	x18964
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x14138
1623C	Balanced Stone Heaps binary search, greedy	1600	x14384
1622C	Set or Decrease binary search, brute force, greedy, sortings	1600	x15614
1615C	Menorah brute force, graphs, greedy, math	1600	x9220
1612D	X-Magic Pair math, number theory	1600	x10286
1610C	Keshi Is Throwing a Party binary search, greedy	1600	x15815
1609D	Social Network dsu, graphs, greedy, implementation, trees	1600	x8432
1607E	Robot on the Board 1 implementation	1600	x10044
1603B	Moderate Modular Mode constructive algorithms, math, number theory	1600	x15118
1593E	Gardener and Tree brute force, data structures, dfs and similar, greedy, implementation, trees	1600	x14842
1582D	Vupsen, Pupsen and 0 constructive algorithms, math	1600	x11614
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x13189
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x8344
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x15644
1542C	Strange Function math, number theory	1600	x16259
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x12777
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x16476
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x10121
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x19202
1527C	Sequence Pair Weight hashing, implementation, math	1600	x15063
1526C2	Potions (Hard Version) data structures, greedy	1600	x30700
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x9193
1520F1	Guess the K-th Zero (Easy version) binary search, interactive	1600	x14496
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x17685
1514C	Product 1 Modulo N greedy, number theory	1600	x18409
1513C	Add One dp, matrices	1600	x16605
1512E	Permutation by Sum brute force, greedy, math	1600	x11412
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x12481
1505B	DMCA *special problem, implementation, number theory	1600	x6533
1503A	Balance the Bits constructive algorithms, greedy	1600	x14752
1498C	Planar Reflections brute force, data structures, dp	1600	x12240
1497C2	k-LCM (hard version) constructive algorithms, math	1600	x19560
1486C1	Guessing the Greatest (easy version) binary search, interactive	1600	x14338
1482C	Basic Diplomacy brute force, constructive algorithms, greedy, implementation	1600	x10044
1481C	Fence Painting brute force, constructive algorithms, greedy	1600	x12430
1476C	Longest Simple Cycle dp, graphs, greedy	1600	x12323
1475E	Advertising Agency combinatorics, math, sortings	1600	x17868
1469C	Building a Fence dp, greedy, implementation, two pointers	1600	x11709
1468K	The Robot brute force, implementation	1600	x5609
1461D	Divide and Summarize binary search, brute force, data structures, divide and conquer, implementation, sortings	1600	x10310
1458A	Row GCD math, number theory	1600	x25579
1455D	Sequence and Swaps dp, greedy, sortings	1600	x13228
1452D	Radio Towers combinatorics, dp, math	1600	x8704
1437D	Minimal Height Tree graphs, greedy, shortest paths, trees	1600	x14415
1431C	Black Friday *special problem, implementation	1600	x746
1423K	Lonely Numbers binary search, math, number theory, two pointers	1600	x5463
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x14932
1398C	Good Subarrays data structures, dp, math	1600	x37133
1396A	Multiples of Length constructive algorithms, greedy, number theory	1600	x16736
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x15262
1389B	Array Walk brute force, dp, greedy	1600	x20540
1374E1	Reading Books (easy version) data structures, greedy, sortings	1600	x15015
1373D	Maximum Sum on Even Positions divide and conquer, dp, greedy, implementation	1600	x17741
1371D	Grid-00100 constructive algorithms, greedy, implementation	1600	x13727
1364C	Ehab and Prefix MEXs brute force, constructive algorithms, greedy	1600	x14401
1363C	Game On Leaves games, trees	1600	x21200
1358C	Celex Update math	1600	x18391
1353D	Constructing the Array constructive algorithms, data structures, sortings	1600	x20360
1352G	Special Permutation constructive algorithms	1600	x24924
1349A	Orac and LCM data structures, math, number theory	1600	x21856
1348C	Phoenix and Distribution constructive algorithms, greedy, sortings, strings	1600	x15536
1346D	Constructing the Dungeon *special problem, graphs, greedy	1600	x545
1346C	Spring Cleaning *special problem, greedy, sortings	1600	x678
1344A	Hilbert's Hotel math, number theory, sortings	1600	x16520
1342C	Yet Another Counting Problem math, number theory	1600	x15014
1336A	Linova and Kingdom dfs and similar, dp, greedy, sortings, trees	1600	x24901
1334C	Circle of Monsters brute force, constructive algorithms, greedy, math	1600	x17981
1327C	Game with Chips constructive algorithms, implementation	1600	x14100
1321C	Remove Adjacent brute force, constructive algorithms, greedy, strings	1600	x10572
1305C	Kuroni and Impossible Calculation brute force, combinatorics, math, number theory	1600	x19024
1303C	Perfect Keyboard dfs and similar, greedy, implementation	1600	x12895
1295C	Obtain The String dp, greedy, strings	1600	x13867
1294D	MEX maximizing data structures, greedy, implementation, math	1600	x12714
1290A	Mind Control brute force, data structures, implementation	1600	x8917
1288C	Two Arrays combinatorics, dp	1600	x15470
1284C	New Year and Permutation combinatorics, math	1600	x8761
1282B2	K for the Price of One (Hard Version) dp, greedy, sortings	1600	x11032
1281B	Azamon Web Services greedy	1600	x8699
1255C	League of Leesins constructive algorithms, implementation	1600	x7233
1252C	Even Path data structures, implementation	1600	x3990
1251C	Minimize The Integer greedy, two pointers	1600	x14408

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