Problemset - Codeforces

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Codeforces Round 1002 (Div. 2)
30:33:52
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Problems

#	Name
1526F	Median Queries constructive algorithms, interactive, probabilities	3000	x309
1526E	Oolimry and Suffix Array combinatorics, constructive algorithms, math	2400	x1088
1526D	Kill Anton brute force, constructive algorithms, data structures, math, strings	2200	x2516
1526C2	Potions (Hard Version) data structures, greedy	1600	x23771
1526C1	Potions (Easy Version) brute force, data structures, dp, greedy	1500	x23538
1526B	I Hate 1111 dp, math, number theory	1400	x31806
1526A	Mean Inequality constructive algorithms, sortings	800	x24361
1525F	Goblins And Gnomes brute force, dp, flows, graph matchings	2800	x344
1525E	Assimilation IV combinatorics, dp, math, probabilities, two pointers	2100	x2139
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x9987
1525C	Robot Collisions data structures, greedy, implementation, sortings	2000	x4546
1525B	Permutation Sort constructive algorithms, greedy	900	x25223
1525A	Potion-making math, number theory	800	x25956
1523H	Hopping Around the Array data structures, dp	3500	x312
1523G	Try Booking data structures, divide and conquer	3200	x473
1523F	Favorite Game bitmasks, dp	3300	x438
1523E	Crypto Lights combinatorics, dp, math, probabilities	2600	x1743
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2237
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x8895
1523B	Lord of the Values constructive algorithms	1100	x12168
1523A	Game of Life implementation	800	x13566
1521E	Nastia and a Beautiful Matrix binary search, constructive algorithms, dp, greedy	2700	x684
1521D	Nastia Plays with a Tree constructive algorithms, data structures, dfs and similar, dp, dsu, greedy, implementation, trees	2500	x2013
1521C	Nastia and a Hidden Permutation constructive algorithms, interactive	2000	x4410
1521B	Nastia and a Good Array constructive algorithms, math, number theory	1300	x21726
1521A	Nastia and Nearly Good Numbers constructive algorithms, math, number theory	1000	x38374
1520G	To Go Or Not To Go? brute force, dfs and similar, graphs, greedy, implementation, shortest paths	2200	x3799
1520F2	Guess the K-th Zero (Hard version) binary search, constructive algorithms, data structures, interactive	2200	x3080
1520F1	Guess the K-th Zero (Easy version) binary search, interactive	1600	x12395
1520E	Arranging The Sheep greedy, math	1400	x22436
1520D	Same Differences data structures, hashing, math	1200	x49822
1520C	Not Adjacent Matrix constructive algorithms	1000	x32372
1520B	Ordinary Numbers brute force, math, number theory	800	x45536
1520A	Do Not Be Distracted! brute force, implementation	800	x53278
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x507
1519E	Off by One constructive algorithms, dfs and similar, geometry, graphs, sortings, trees	2700	x836
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x15681
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x17653
1519B	The Cake Is a Lie dp, math	800	x31344
1519A	Red and Blue Beans math	800	x29271
1517H	Fly Around the World dp, geometry	3500	x76
1517G	Starry Night Camping constructive algorithms, flows, graphs	3300	x523
1517F	Reunion combinatorics, dp, trees	3200	x482
1517E	Group Photo binary search, data structures, implementation, two pointers	2500	x993
1517D	Explorer Space dp, graphs, shortest paths	1800	x7994
1517C	Fillomino 2 constructive algorithms, dfs and similar, greedy, implementation	1400	x13532
1517B	Morning Jogging constructive algorithms, greedy, sortings	1200	x13374
1517A	Sum of 2050 greedy, math	800	x25837
1516E	Baby Ehab Plays with Permutations combinatorics, dp, math	2500	x905
1516D	Cut binary search, data structures, dp, graphs, number theory, two pointers	2100	x4543
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x12187
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x20329
1516A	Tit for Tat greedy	800	x23710
1515I	Phoenix and Diamonds binary search, data structures, sortings	3400	x297
1515H	Phoenix and Bits bitmasks, brute force, data structures, sortings	3500	x257
1515G	Phoenix and Odometers dfs and similar, graphs, math, number theory	2700	x1059
1515F	Phoenix and Earthquake constructive algorithms, dfs and similar, dsu, graphs, greedy, trees	2600	x1858
1515E	Phoenix and Computers combinatorics, dp, math	2200	x3747
1515D	Phoenix and Socks greedy, sortings, two pointers	1500	x11595
1515C	Phoenix and Towers constructive algorithms, data structures, greedy	1400	x17477
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x25391
1515A	Phoenix and Gold constructive algorithms, greedy, math	800	x20426
1514E	Baby Ehab's Hyper Apartment binary search, graphs, interactive, sortings, two pointers	2700	x635
1514D	Cut and Stick binary search, data structures, greedy, implementation, sortings	2000	x4413
1514C	Product 1 Modulo N greedy, number theory	1600	x15684
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x26532
1514A	Perfectly Imperfect Array math, number theory	800	x24442
1513F	Swapping Problem brute force, constructive algorithms, data structures, sortings	2500	x1299
1513E	Cost Equilibrium combinatorics, constructive algorithms, math, sortings	2300	x1544
1513D	GCD and MST constructive algorithms, dsu, graphs, greedy, number theory, sortings	2000	x5654
1513C	Add One dp, matrices	1600	x14614
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x15426
1513A	Array and Peaks constructive algorithms, implementation	800	x19504
1512G	Short Task brute force, dp, math, number theory	1700	x8430
1512F	Education brute force, dp, greedy, implementation	1900	x6350
1512E	Permutation by Sum brute force, greedy, math	1600	x10677
1512D	Corrupted Array constructive algorithms, data structures, greedy	1200	x22948
1512C	A-B Palindrome constructive algorithms, implementation, strings	1200	x20523
1512B	Almost Rectangle implementation	800	x25670
1512A	Spy Detected! brute force, implementation	800	x67149
1511G	Chips on a Board bitmasks, brute force, data structures, dp, games, two pointers	2700	x829
1511F	Chainword brute force, data structures, dp, matrices, string suffix structures, strings	2700	x456
1511E	Colorings and Dominoes combinatorics, dp, greedy, math	2100	x2638
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11720
1511C	Yet Another Card Deck brute force, data structures, implementation, trees	1100	x24961
1511B	GCD Length constructive algorithms, math, number theory	1100	x23249
1511A	Review Site greedy	800	x27890
1510K	King's Task brute force, graphs, implementation	1200	x5586
1510J	Japanese Game constructive algorithms, math	2700	x534
1510I	Is It Rated? greedy, interactive, math, probabilities	2700	x510
1510H	Hard Optimization dp	3200	x101
1510G	Guide	2100	x1323
1510F	Fiber Shape	2800	x60
1510E	Equilibrium Point /\textbackslash/\textbackslash	2700	x260
1510D	Digits dp, math, number theory	2100	x1965
1510C	Cactus Not Enough dfs and similar, graph matchings, graphs	2900	x222
1510B	Button Lock flows, graph matchings, graphs	2600	x874
1510A	ASCII Automata Art	3100	x158
1509C	The Sports Festival dp, greedy	1800	x13093
1509B	TMT Document greedy	1100	x21908