Problemset - Codeforces

Problems

#	Name
1593F	Red-Black Number dfs and similar, dp, implementation, math, meet-in-the-middle	2100	x2504
1593E	Gardener and Tree brute force, data structures, dfs and similar, greedy, implementation, trees	1600	x13048
1593D2	Half of Same brute force, math, number theory	1900	x5169
1593D1	All are Same math, number theory	1100	x20604
1593C	Save More Mice binary search, greedy, greedy	1000	x25754
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x29409
1593A	Elections math	800	x38262
1592F2	Alice and Recoloring 2 constructive algorithms, flows, graph matchings, greedy	2800	x796
1592F1	Alice and Recoloring 1 constructive algorithms, greedy	2600	x933
1592E	Bored Bakry bitmasks, greedy, math, two pointers	2400	x1725
1592D	Hemose in ICPC ? binary search, dfs and similar, implementation, interactive, math, number theory, trees	2300	x2368
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x8252
1592B	Hemose Shopping constructive algorithms, dsu, math, sortings	1200	x16349
1592A	Gamer Hemose binary search, greedy, math, sortings	800	x22701
1588F	Jumping Through the Array binary search, data structures, graphs, two pointers	3500	x322
1586I	Omkar and Mosaic combinatorics, constructive algorithms, math	3500	x210
1585G	Poachers dp, games, graphs, trees	2500	x239
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1335
1585E	Frequency Queries data structures, dfs and similar, trees	2400	x1094
1585D	Yet Another Sorting Problem data structures, math	1900	x4005
1585C	Minimize Distance greedy	1300	x12275
1585B	Array Eversion greedy	900	x15432
1585A	Life of a Flower implementation	800	x18044
1584G	Eligible Segments geometry	3200	x222
1584F	Strange LCS bitmasks, dp, graphs, greedy, strings	2600	x1021
1584E	Game with Stones binary search, data structures, games, greedy	2300	x1324
1584D	Guess the Permutation binary search, combinatorics, interactive, math	2000	x3761
1584C	Two Arrays greedy, math, sortings	900	x16860
1584B	Coloring Rectangles greedy, math	1000	x13645
1584A	Mathematical Addition math	800	x15044
1583H	Omkar and Tours data structures, divide and conquer, sortings, trees	3300	x349
1583G	Omkar and Time Travel data structures, math	3000	x475
1583F	Defender of Childhood Dreams bitmasks, constructive algorithms, divide and conquer	2500	x1372
1583E	Moment of Bloom constructive algorithms, dfs and similar, graph matchings, graphs, greedy, trees	2200	x2279
1583D	Omkar and the Meaning of Life constructive algorithms, greedy, interactive	1800	x5517
1583C	Omkar and Determination data structures, dp	1700	x7033
1583B	Omkar and Heavenly Tree constructive algorithms, trees	1200	x12532
1583A	Windblume Ode math, number theory	800	x13863
1582G	Kuzya and Homework data structures, number theory	2600	x623
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1898
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5877
1582E	Pchelyonok and Segments binary search, data structures, dp, greedy, math	2000	x3865
1582D	Vupsen, Pupsen and 0 constructive algorithms, math	1600	x10858
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x17147
1582B	Luntik and Subsequences combinatorics, math	900	x22572
1582A	Luntik and Concerts math	800	x18772
1581B	Diameter of Graph constructive algorithms, graphs, greedy, math	1200	x11693
1581A	CQXYM Count Permutations combinatorics, math, number theory	800	x13613
1580F	Problems for Codeforces combinatorics, fft, math	3300	x140
1580E	Railway Construction brute force, constructive algorithms, data structures, graphs, shortest paths	3400	x78
1580D	Subsequence brute force, divide and conquer, dp, greedy, trees	2900	x969
1580C	Train Maintenance brute force, data structures, implementation	2200	x1898
1580B	Mathematics Curriculum brute force, combinatorics, dp, trees	2600	x1114
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3760
1579G	Minimal Coverage dp	2200	x2481
1579F	Array Stabilization (AND version) brute force, graphs, math, number theory, shortest paths	1700	x4897
1579E2	Array Optimization by Deque data structures, greedy	1700	x6828
1579E1	Permutation Minimization by Deque constructive algorithms, greedy, math	1000	x22305
1579D	Productive Meeting constructive algorithms, graphs, greedy	1400	x16530
1579C	Ticks greedy, implementation	1500	x10841
1579B	Shifting Sort implementation, sortings	1100	x18354
1579A	Casimir's String Solitaire math, strings	800	x39738
1578M	The Mind constructive algorithms, interactive, probabilities	2700	x460
1578L	Labyrinth binary search, dsu, greedy	2400	x1253
1578K	Kingdom of Islands brute force, graphs, implementation	2800	x371
1578J	Just Kingdom brute force, data structures, dfs and similar	3100	x294
1578I	Interactive Rays geometry, interactive	3300	x63
1578H	Higher Order Functions implementation, strings	1700	x2058
1578G	Game of Chance math, probabilities	3500	x43
1578F	Framing Pictures geometry	2900	x164
1578E	Easy Scheduling implementation, math	1200	x3894
1578D	Dragon Curve	3200	x46
1578C	Cactus Lady and her Cing	3500	x10
1578B	Building Forest Trails data structures, dsu	2800	x340
1578A	Anti-Tetris constructive algorithms, graphs, shortest paths	2800	x382
1576A	Communication Routing Challenge *special problem
1575M	Managing Telephone Poles data structures, geometry	2400	x266
1575L	Longest Array Deconstruction data structures, divide and conquer, dp, sortings	2100	x1471
1575K	Knitting Batik implementation, math	2200	x733
1575J	Jeopardy of Dropped Balls binary search, brute force, dsu, implementation	1500	x3956
1575I	Illusions of the Desert data structures, trees	2300	x940
1575H	Holiday Wall Ornaments dp, strings	2200	x647
1575G	GCD Festival math, number theory	2200	x735
1575F	Finding Expected Value math	2900	x126
1575E	Eye-Pleasing City Park Tour data structures, trees	2600	x347
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2691
1575C	Cyclic Sum data structures, fft, number theory	3000	x169
1575B	Building an Amusement Park binary search, geometry	2300	x485
1575A	Another Sorting Problem data structures, sortings, strings	1100	x4728
1574F	Occurrences combinatorics, dfs and similar, dp, dsu, fft, graphs	2700	x666
1574E	Coloring combinatorics, constructive algorithms, implementation, math	2500	x937
1574D	The Strongest Build binary search, brute force, data structures, dfs and similar, graphs, greedy, hashing, implementation	2000	x4581
1574C	Slay the Dragon binary search, greedy, sortings, ternary search	1300	x17515
1574B	Combinatorics Homework combinatorics, greedy, math	1100	x17567
1574A	Regular Bracket Sequences constructive algorithms	800	x22216
1573B	Swaps greedy, math, sortings	1400	x14911
1573A	Countdown greedy	800	x21373
1572F	Stations data structures	3400	x293
1572E	Polygon binary search, dp, geometry	3000	x318
1572D	Bridge Club flows, graph matchings, graphs, greedy	2800	x551