Problemset - Codeforces

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Codeforces Round (Div. 3)
41:10:48
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Problems

#	Name
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x1045
1795E	Explosions? binary search, data structures, dp, greedy, math	2200	x1912
1795D	Triangle Coloring combinatorics, math	1600	x8433
1795C	Tea Tasting binary search, data structures, implementation	1500	x11362
1795B	Ideal Point brute force, geometry, greedy	900	x21135
1795A	Two Towers brute force, implementation, strings	800	x23222
1794E	Labeling the Tree with Distances data structures, dp, greedy, hashing, implementation, trees	2400	x1004
1794D	Counting Factorizations combinatorics, divide and conquer, dp, math, number theory	1900	x3337
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x12411
1794B	Not Dividing constructive algorithms, greedy, math	900	x19374
1794A	Prefix and Suffix Array strings	800	x16534
1793F	Rebrending brute force, data structures, divide and conquer, implementation	2600	x1272
1793E	Velepin and Marketing binary search, data structures, dp, greedy, sortings, two pointers	2600	x924
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x5741
1793C	Dora and Search constructive algorithms, data structures, two pointers	1200	x18049
1793B	Fedya and Array constructive algorithms, math	1100	x15201
1793A	Yet Another Promotion greedy, math	800	x17697
1792F2	Graph Coloring (hard version) brute force, combinatorics, divide and conquer, dp, fft, graphs	2900	x373
1792F1	Graph Coloring (easy version) combinatorics, dp, graphs	2700	x665
1792E	Divisors and Table brute force, dfs and similar, dp, number theory	2400	x1301
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x5865
1792C	Min Max Sort binary search, brute force, greedy, math, two pointers	1500	x13160
1792B	Stand-up Comedian greedy, math	1200	x20149
1792A	GamingForces greedy, sortings	800	x27100
1791G2	Teleporters (Hard Version) binary search, greedy, sortings	1900	x4453
1791G1	Teleporters (Easy Version) greedy, sortings	1100	x20418
1791F	Range Update Point Query binary search, brute force, data structures	1500	x11442
1791E	Negatives and Positives dp, greedy, sortings	1100	x25459
1791D	Distinct Split brute force, greedy, strings	1000	x26767
1791C	Prepend and Append implementation, two pointers	800	x40340
1791B	Following Directions geometry, implementation	800	x41664
1791A	Codeforces Checking implementation, strings	800	x54654
1790G	Tokens on Graph constructive algorithms, dfs and similar, graphs, shortest paths	2300	x1041
1790F	Timofey and Black-White Tree brute force, dfs and similar, divide and conquer, graphs, greedy, math, shortest paths, trees	2100	x3141
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x14129
1790D	Matryoshkas data structures, greedy, sortings	1200	x18094
1790C	Premutation brute force, implementation, math	1000	x22896
1790B	Taisia and Dice greedy, greedy, math	800	x26628
1790A	Polycarp and the Day of Pi implementation, math, strings	800	x35566
1789F	Serval and Brain Power bitmasks, brute force, dp, greedy, implementation, strings	2700	x511
1789E	Serval and Music Game brute force, dp, implementation, math, number theory	2500	x757
1789D	Serval and Shift-Shift-Shift bitmasks, brute force, constructive algorithms, implementation	2200	x1565
1789C	Serval and Toxel's Arrays combinatorics, dp, implementation, math	1500	x8040
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x15752
1789A	Serval and Mocha's Array brute force, math, number theory	800	x16884
1788F	XOR, Tree, and Queries bitmasks, constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, trees	2500	x785
1788E	Sum Over Zero data structures, dfs and similar, dp	2200	x2464
1788D	Moving Dots binary search, brute force, combinatorics, math, two pointers	2000	x3719
1788C	Matching Numbers constructive algorithms, greedy, math	1300	x16427
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x19215
1788A	One and Two brute force, implementation, math	800	x27440
1787I	Treasure Hunt data structures, divide and conquer, two pointers	3400	x148
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x197
1787G	Colorful Tree Again brute force, data structures, trees	3000	x395
1787F	Inverse Transformation constructive algorithms, implementation, math	2500	x628
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2172
1787D	Game on Axis combinatorics, dfs and similar, dsu, graphs, implementation	1900	x3256
1787C	Remove the Bracket dp, greedy, math	1600	x6687
1787B	Number Factorization greedy, math, number theory	1100	x12670
1787A	Exponential Equation constructive algorithms, math	800	x18681
1786B	Cake Assembly Line brute force, sortings	1300	x8598
1786A2	Alternating Deck (hard version) implementation	800	x11210
1786A1	Non-alternating Deck (easy version) implementation	800	x13597
1784F	Minimums or Medians	3400	x169
1784E	Infinite Game brute force, combinatorics, dp, games, probabilities	3100	x300
1784D	Wooden Spoon combinatorics, dp	2400	x949
1784C	Monsters (hard version) data structures, greedy	2200	x1523
1784B	Letter Exchange constructive algorithms	1900	x3205
1784A	Monsters (easy version) brute force, greedy	1000	x14445
1783G	Weighed Tree Radius data structures, divide and conquer, implementation, trees	2800	x406
1783F	Double Sort II dfs and similar, flows, graph matchings, graphs	2500	x907
1783E	Game of the Year brute force, data structures, math, number theory	2300	x2018
1783D	Different Arrays brute force, dp, implementation	2000	x4164
1783C	Yet Another Tournament binary search, greedy, sortings	1700	x8784
1783B	Matrix of Differences constructive algorithms, math	1100	x17147
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x27144
1781H2	Window Signals (hard version)	3500	x86
1781H1	Window Signals (easy version)	3200	x112
1781G	Diverse Coloring constructive algorithms, trees	3200	x213
1781F	Bracket Insertion combinatorics, dp, math, trees	2700	x729
1781E	Rectangle Shrinking binary search, brute force, data structures, greedy, implementation, two pointers	2300	x1261
1781D	Many Perfect Squares brute force, math, number theory	1800	x5224
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7023
1781B	Going to the Cinema brute force, greedy, sortings	1000	x13207
1781A	Parallel Projection geometry, math	800	x14844
1780G	Delicious Dessert binary search, dsu, hashing, math, number theory, string suffix structures	2400	x666
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x1368
1780E	Josuke and Complete Graph binary search, brute force, data structures, math, number theory	2400	x1300
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4634
1780B	GCD Partition brute force, greedy, math, number theory	1100	x16508
1780A	Hayato and School constructive algorithms, greedy	800	x21055
1779H	Olympic Team Building brute force, meet-in-the-middle	3500	x131
1779G	The Game of the Century constructive algorithms, graphs, shortest paths	3000	x301
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1215
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1684
1779D	Boris and His Amazing Haircut constructive algorithms, data structures, dp, dsu, greedy, sortings	1700	x7475
1779C	Least Prefix Sum data structures, greedy	1600	x11777
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x22970
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x22877
1778F	Maximizing Root dfs and similar, dp, graphs, math, number theory, trees	2600	x596