Problemset - Codeforces

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EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2)
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Problems

#	Name
1523H	Hopping Around the Array data structures, dp	3500	x236
1523F	Favorite Game bitmasks, dp	3300	x406
1523E	Crypto Lights combinatorics, dp, math, probabilities	2600	x1552
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2100
1521E	Nastia and a Beautiful Matrix binary search, constructive algorithms, dp, greedy	2700	x653
1521D	Nastia Plays with a Tree constructive algorithms, data structures, dfs and similar, dp, dsu, greedy, implementation, trees	2500	x1827
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x393
1517H	Fly Around the World dp, geometry	3500	x66
1517F	Reunion combinatorics, dp, trees	3200	x451
1516E	Baby Ehab Plays with Permutations combinatorics, dp, math	2500	x826
1516D	Cut binary search, data structures, dp, graphs, number theory, two pointers	2100	x4153
1515E	Phoenix and Computers combinatorics, dp, math	2200	x3425
1511G	Chips on a Board bitmasks, brute force, data structures, dp, games, two pointers	2700	x712
1511F	Chainword brute force, data structures, dp, matrices, string suffix structures, strings	2700	x422
1511E	Colorings and Dominoes combinatorics, dp, greedy, math	2100	x2488
1510H	Hard Optimization dp	3200	x98
1510D	Digits dp, math, number theory	2100	x1810
1506G	Maximize the Remaining String brute force, data structures, dp, greedy, strings	2000	x4141
1503E	2-Coloring combinatorics, dp, math	3100	x598
1503C	Travelling Salesman Problem binary search, data structures, dp, greedy, shortest paths, sortings, two pointers	2200	x3237
1500F	Cupboards Jumps dp	3500	x334
1499F	Diameter Cuts combinatorics, dfs and similar, dp, trees	2400	x1263
1499E	Chaotic Merge combinatorics, dp, math, strings	2400	x1425
1499D	The Number of Pairs dp, math, number theory	2100	x5584
1498F	Christmas Game bitmasks, data structures, dfs and similar, dp, games, math, trees	2500	x858
1498D	Bananas in a Microwave dfs and similar, dp, graphs, implementation	2200	x2253
1497E2	Square-free division (hard version) data structures, dp, greedy, math, number theory, two pointers	2500	x1577
1497D	Genius bitmasks, dp, graphs, number theory	2500	x1499
1495F	Squares constructive algorithms, data structures, dp, graphs, trees	3300	x288
1488E	Palindromic Doubles *special problem, data structures, dp	2200	x210
1487G	String Counting combinatorics, dp, fft, math	2700	x580
1487F	Ones dp, greedy, shortest paths	2900	x362
1486F	Pairs of Paths combinatorics, data structures, dfs and similar, dp, trees	2600	x642
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x2823
1486D	Max Median binary search, data structures, dp	2100	x6922
1485F	Copy or Prefix Sum combinatorics, data structures, dp, sortings	2400	x1885
1485E	Move and Swap dfs and similar, dp, greedy, trees	2500	x1226
1482E	Skyline Photo data structures, divide and conquer, dp	2100	x2987
1481F	AB Tree dp, greedy, trees	3100	x477
1481E	Sorting Books data structures, dp, greedy	2500	x2008
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x198
1479B2	Painting the Array II constructive algorithms, data structures, dp, greedy, implementation	2100	x3957
1476F	Lanterns binary search, data structures, dp	3000	x642
1474F	1 2 3 4 ... dp, math, matrices	3000	x243
1474D	Cleaning data structures, dp, greedy, math	2200	x3896
1473G	Tiles combinatorics, dp, fft, math	2800	x385
1472G	Moving to the Capital dfs and similar, dp, graphs, shortest paths	2100	x4472
1472F	New Year's Puzzle brute force, dp, graph matchings, greedy, sortings	2100	x2965
1470E	Strange Permutation binary search, combinatorics, data structures, dp, graphs, implementation, two pointers	3200	x296
1468A	LaIS data structures, dp, greedy	2200	x1599
1467E	Distinctive Roots in a Tree data structures, dfs and similar, dp, trees	2500	x1348
1467D	Sum of Paths combinatorics, dp, math	2200	x3567
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x270
1463F	Max Correct Set bitmasks, dp, math	3100	x557
1461F	Mathematical Expression constructive algorithms, dp, greedy	2700	x536
1458B	Glass Half Spilled dp	2000	x3427
1456E	XOR-ranges dp, greedy	3500	x274
1455G	Forbidden Value data structures, dp	2900	x400
1455F	String and Operations dp, greedy	2800	x421
1453F	Even Harder dp	2700	x812
1453E	Dog Snacks binary search, dfs and similar, dp, greedy, trees	2300	x1983
1452E	Two Editorials brute force, dp, greedy, sortings, two pointers	2500	x1489
1450G	Communism bitmasks, dp, trees	3500	x235
1446C	Xor Tree binary search, bitmasks, data structures, divide and conquer, dp, trees	2100	x3434
1444E	Finding the Vertex brute force, dfs and similar, dp, interactive, trees	3500	x134
1444D	Rectangular Polyline constructive algorithms, dp, geometry	2900	x561
1442E	Black, White and Grey Tree binary search, constructive algorithms, dfs and similar, dp, greedy, trees	3000	x564
1442D	Sum data structures, divide and conquer, dp, greedy	2800	x1947
1439D	INOI Final Contests combinatorics, dp, fft	3100	x351
1437F	Emotional Fishermen combinatorics, dp, math, two pointers	2600	x1178
1437E	Make It Increasing binary search, constructive algorithms, data structures, dp, implementation	2200	x3353
1433F	Zero Remainder Sum dp	2100	x5903
1431J	Zero-XOR Array *special problem, dp	3400	x43
1431G	Number Deletion Game *special problem, dp, games, greedy	2100	x139
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x637
1430F	Realistic Gameplay dp, greedy	2600	x870
1428G2	Lucky Numbers (Hard Version) dp, greedy	3000	x618
1428G1	Lucky Numbers (Easy Version) dp, greedy	2900	x555
1428F	Fruit Sequences binary search, data structures, divide and conquer, dp, two pointers	2400	x2184
1427C	The Hard Work of Paparazzi dp	2000	x5511
1426F	Number of Subsequences combinatorics, dp, strings	2000	x5162
1425D	Danger of Mad Snakes combinatorics, dp, math	2300	x815
1425B	Blue and Red of Our Faculty! divide and conquer, dp	2600	x275
1423J	Bubble Cup hypothesis bitmasks, constructive algorithms, dp, math	2400	x741
1422E	Minlexes dp, greedy, implementation, strings	2700	x734
1421E	Swedish Heroes brute force, dp, implementation	2700	x682
1420E	Battle Lemmings dp, greedy	2500	x857
1420C2	Pokémon Army (hard version) data structures, divide and conquer, dp, greedy, implementation	2100	x4562
1416E	Split binary search, data structures, dp, greedy	3200	x280
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4240
1415F	Cakes for Clones dp	2900	x409
1409F	Subsequences of Length Two dp, strings	2100	x4309
1408I	Bitwise Magic dp, math	3200	x171
1408G	Clusterization Counting combinatorics, dp, dsu, fft, graphs, trees	2700	x935
1408D	Searchlights binary search, brute force, data structures, dp, implementation, sortings, two pointers	2000	x4190
1407E	Egor in the Republic of Dagestan constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths	2500	x1612
1407D	Discrete Centrifugal Jumps data structures, dp, graphs	2200	x4661
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x47
1402C	Star Trek *special problem, combinatorics, dfs and similar, dp, games, graphs, matrices, trees	2600	x201
1400G	Mercenaries bitmasks, brute force, combinatorics, dp, dsu, math, two pointers	2600	x939