Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
283C	Coin Troubles dp	2100	x1230
1510G	Guide	2100	x1255
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1262
818F	Level Generation binary search, math, ternary search	2100	x1281
286C	Main Sequence greedy, implementation	2100	x1283
1250C	Trip to Saint Petersburg data structures	2100	x1284
1666J	Job Lookup constructive algorithms, dp, shortest paths, trees	2100	x1290
1387B1	Village (Minimum) *special problem, dp, greedy, trees	2100	x1303
746G	New Roads constructive algorithms, graphs, trees	2100	x1307
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1309
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1334
1252G	Performance Review data structures	2100	x1359
282D	Yet Another Number Game dp, games	2100	x1375
587B	Duff in Beach dp	2100	x1376
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1384
853C	Boredom data structures	2100	x1387
862E	Mahmoud and Ehab and the function binary search, data structures, sortings	2100	x1388
452C	Magic Trick combinatorics, math, probabilities	2100	x1395
552E	Vanya and Brackets brute force, dp, expression parsing, greedy, implementation, strings	2100	x1408
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1409
313D	Ilya and Roads dp	2100	x1412
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1429
748E	Santa Claus and Tangerines binary search, data structures, greedy, two pointers	2100	x1440
1098B	Nice table brute force, constructive algorithms, greedy, math	2100	x1465
1032E	The Unbearable Lightness of Weights dp, math	2100	x1471
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1473
993C	Careful Maneuvering bitmasks, brute force, geometry	2100	x1478
1866G	Grouped Carriages binary search, data structures, dp, flows, greedy	2100	x1496
995A	Tesla constructive algorithms, implementation	2100	x1499
837E	Vasya's Function binary search, implementation, math	2100	x1504
56D	Changing a String dp	2100	x1506
1866H	Happy Sets combinatorics	2100	x1515
5D	Follow Traffic Rules implementation, math	2100	x1517
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1524
520D	Cubes games, greedy, implementation	2100	x1532
231E	Cactus data structures, dfs and similar, dp, graphs, trees	2100	x1533
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1540
899F	Letters Removing data structures, strings	2100	x1571
793D	Presents in Bankopolis dp, graphs, shortest paths	2100	x1572
576B	Invariance of Tree constructive algorithms, dfs and similar, greedy, trees	2100	x1572
732E	Sockets greedy, sortings	2100	x1576
992D	Nastya and a Game brute force, implementation, math	2100	x1580
703C	Chris and Road geometry, implementation	2100	x1580
165D	Beard Graph data structures, dsu, trees	2100	x1580
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1592
489F	Special Matrices combinatorics, dp	2100	x1595
1005F	Berland and the Shortest Paths brute force, dfs and similar, graphs, shortest paths	2100	x1604
827C	DNA Evolution data structures, strings	2100	x1610
496E	Distributing Parts greedy, sortings	2100	x1623
859E	Desk Disorder combinatorics, dfs and similar, dsu, graphs, trees	2100	x1640
1914G1	Light Bulbs (Easy Version) brute force, combinatorics, dfs and similar, dp, dsu, graphs, math, trees	2100	x1650
464C	Substitutes in Number dp	2100	x1650
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1654
909D	Colorful Points data structures, greedy, implementation	2100	x1672
960D	Full Binary Tree Queries brute force, implementation, trees	2100	x1676
590B	Chip 'n Dale Rescue Rangers binary search, geometry, math	2100	x1693
1158C	Permutation recovery constructive algorithms, data structures, dfs and similar, graphs, greedy, math, sortings	2100	x1695
1028D	Order book combinatorics, data structures, greedy	2100	x1708
1811F	Is It Flower? dfs and similar, graphs, implementation	2100	x1714
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1721
1176F	Destroy it! dp, implementation, sortings	2100	x1734
1267K	Key Storage combinatorics, math	2100	x1737
797D	Broken BST data structures, dfs and similar	2100	x1747
1066F	Yet another 2D Walking dp	2100	x1754
1183F	Topforces Strikes Back brute force, math, sortings	2100	x1762
1900E	Transitive Graph dfs and similar, dp, dsu, graphs, implementation	2100	x1775
1252K	Addition Robot data structures, math, matrices	2100	x1780
549H	Degenerate Matrix binary search, math	2100	x1784
1510D	Digits dp, math, number theory	2100	x1791
1185F	Two Pizzas bitmasks, brute force	2100	x1798
242D	Dispute dfs and similar, graphs, greedy	2100	x1805
748D	Santa Claus and a Palindrome constructive algorithms, data structures, greedy	2100	x1810
919E	Congruence Equation chinese remainder theorem, math, number theory	2100	x1819
333D	Characteristics of Rectangles binary search, bitmasks, brute force, implementation, sortings	2100	x1844
1027E	Inverse Coloring combinatorics, dp, math	2100	x1858
1120C	Compress String dp, strings	2100	x1869
145C	Lucky Subsequence combinatorics, dp, math	2100	x1881
1811G1	Vlad and the Nice Paths (easy version) combinatorics, dp, math	2100	x1898
875C	National Property 2-sat, dfs and similar, graphs, implementation	2100	x1900
1413E	Solo mid Oracle greedy, math, ternary search	2100	x1905
1525E	Assimilation IV combinatorics, dp, math, probabilities, two pointers	2100	x1931
912D	Fishes data structures, graphs, greedy, probabilities, shortest paths	2100	x1933
1776G	Another Wine Tasting Event combinatorics, constructive algorithms, math, strings	2100	x1940
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1949
1056E	Check Transcription brute force, data structures, hashing, strings	2100	x1965
799D	Field expansion brute force, dp, meet-in-the-middle	2100	x1969
990E	Post Lamps brute force, greedy	2100	x1973
850B	Arpa and a list of numbers implementation, number theory	2100	x1973
631D	Messenger data structures, hashing, implementation, string suffix structures, strings	2100	x1979
103D	Time to Raid Cowavans brute force, data structures, sortings	2100	x1979
1896E	Permutation Sorting data structures, sortings	2100	x1989
601B	Lipshitz Sequence data structures, math	2100	x2001
540E	Infinite Inversions binary search, data structures, implementation, sortings, trees	2100	x2004
571A	Lengthening Sticks combinatorics, implementation, math	2100	x2006
340B	Maximal Area Quadrilateral brute force, geometry	2100	x2018
1801D	The way home binary search, data structures, dp, graphs, greedy, shortest paths, sortings	2100	x2028
348B	Apple Tree dfs and similar, number theory, trees	2100	x2039
1729G	Cut Substrings combinatorics, dp, hashing, strings, two pointers	2100	x2046
466E	Information Graph dfs and similar, dsu, graphs, trees	2100	x2052
1266E	Spaceship Solitaire data structures, greedy, implementation	2100	x2067