Problemset - Codeforces

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Problems

#	Name
1569C	Jury Meeting combinatorics, math	1500	x12190
1569B	Chess Tournament constructive algorithms	1000	x18996
1569A	Balanced Substring implementation	800	x25656
1567F	One-Four Overload 2-sat, constructive algorithms, dfs and similar, dsu, graphs, implementation	2700	x759
1567E	Non-Decreasing Dilemma data structures, divide and conquer, math	2200	x3746
1567D	Expression Evaluation Error constructive algorithms, greedy, implementation, math	2000	x4561
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x12287
1567B	MEXor Mixup bitmasks, greedy	1000	x23737
1567A	Domino Disaster implementation, strings	800	x30288
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x129
1566G	Four Vertices constructive algorithms, data structures, graphs, greedy, implementation, shortest paths	3100	x344
1566F	Points Movement data structures, dp, greedy, implementation, sortings	2600	x963
1566E	Buds Re-hanging constructive algorithms, dfs and similar, dp, greedy, trees	2000	x4196
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x7932
1566D1	Seating Arrangements (easy version) data structures, greedy, sortings	1100	x14101
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17772
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19867
1566A	Median Maximization binary search, greedy, math	800	x23672
1562F	Tubular Bells interactive, math, number theory, probabilities	2900	x409
1562E	Rescue Niwen! dp, greedy, string suffix structures, strings	2500	x1430
1562D2	Two Hundred Twenty One (hard version) data structures, math	2200	x2151
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x6397
1562C	Rings constructive algorithms, math	1500	x13431
1562B	Scenes From a Memory brute force, constructive algorithms, implementation, math, number theory	1000	x19750
1562A	The Miracle and the Sleeper greedy, math	800	x25731
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5673
1561C	Deep Down Below binary search, greedy, sortings	1300	x15173
1561A	Simply Strange Sort brute force, implementation, sortings	800	x16626
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4471
1560F1	Nearest Beautiful Number (easy version) binary search, bitmasks, brute force, constructive algorithms, dfs and similar, greedy	1900	x6216
1560E	Polycarp and String Transformation binary search, implementation, sortings, strings	1800	x8152
1560D	Make a Power of Two greedy, math, strings	1300	x18362
1560C	Infinity Table implementation, math	800	x26792
1560B	Who's Opposite? math	800	x36128
1560A	Dislike of Threes implementation	800	x61733
1559E	Mocha and Stars combinatorics, dp, fft, math, number theory	2200	x2347
1559D2	Mocha and Diana (Hard Version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, trees, two pointers	2500	x2693
1559D1	Mocha and Diana (Easy Version) brute force, constructive algorithms, dsu, graphs, greedy, trees	1400	x14089
1559C	Mocha and Hiking constructive algorithms, graphs	1200	x20779
1559B	Mocha and Red and Blue dp, greedy	900	x22736
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x32475
1558F	Strange Sort data structures, sortings	3300	x399
1558E	Down Below binary search, dfs and similar, graphs, greedy, meet-in-the-middle, shortest paths	3000	x484
1558D	Top-Notch Insertions combinatorics, data structures	2600	x988
1558C	Bottom-Tier Reversals constructive algorithms, greedy	2000	x3383
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4850
1558A	Charmed by the Game brute force, math	1300	x11147
1557E	Assiut Chess brute force, constructive algorithms, interactive	2800	x719
1557D	Ezzat and Grid data structures, dp, greedy	2200	x2589
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8693
1557B	Moamen and k-subarrays greedy, sortings	1100	x23617
1557A	Ezzat and Two Subsequences brute force, math, sortings	800	x28075
1556H	DIY Tree graphs, greedy, math, probabilities	3300	x377
1556G	Gates to Another World bitmasks, data structures, dsu, two pointers	3300	x341
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1275
1556E	Equilibrium data structures, dp, greedy	2200	x2747
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x7122
1556C	Compressed Bracket Sequence brute force, implementation	1800	x5835
1556B	Take Your Places! implementation	1300	x12785
1556A	A Variety of Operations math	800	x18135
1555F	Good Graph data structures, dsu, graphs, trees	2700	x874
1555E	Boring Segments data structures, sortings, trees, two pointers	2100	x4087
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x12654
1555C	Coin Rows brute force, constructive algorithms, dp, implementation	1300	x22108
1555B	Two Tables brute force	1300	x16208
1555A	PizzaForces brute force, math	900	x28456
1554E	You dfs and similar, dp, math, number theory	2600	x1250
1554D	Diane constructive algorithms, greedy, strings	1800	x9616
1554C	Mikasa binary search, bitmasks, greedy, implementation	1800	x9017
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12930
1554A	Cherry greedy	800	x29619
1553I	Stairs combinatorics, divide and conquer, dp, fft, math	3400	x209
1553H	XOR and Distance bitmasks, divide and conquer, trees	2900	x719
1553G	Common Divisor Graph brute force, constructive algorithms, dsu, graphs, hashing, math, number theory	2700	x1064
1553F	Pairwise Modulo data structures, math	2300	x2260
1553E	Permutation Shift brute force, combinatorics, constructive algorithms, dfs and similar, dsu, graphs, math	2100	x3396
1553D	Backspace dp, greedy, strings, two pointers	1500	x13904
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x18130
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x14282
1553A	Digits Sum math, number theory	800	x31474
1552I	Organizing a Music Festival dfs and similar, math	3400	x130
1552H	Guess the Perimeter binary search, interactive, number theory	3300	x394
1552G	A Serious Referee bitmasks, brute force, dfs and similar, sortings	3000	x536
1552F	Telepanting binary search, data structures, dp, sortings	2200	x2981
1552E	Colors and Intervals constructive algorithms, data structures, greedy, sortings	2300	x1933
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x7127
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5960
1552B	Running for Gold combinatorics, graphs, greedy, sortings	1500	x15615
1552A	Subsequence Permutation sortings, strings	800	x24012
1551F	Equidistant Vertices brute force, combinatorics, dfs and similar, dp, trees	2200	x1869
1551E	Fixed Points binary search, brute force, dp	2000	x4013
1551D2	Domino (hard version) constructive algorithms, implementation, math	2100	x2794
1551D1	Domino (easy version) constructive algorithms, math	1700	x7166
1551C	Interesting Story greedy, sortings, strings	1500	x13460
1551B2	Wonderful Coloring - 2 binary search, constructive algorithms, data structures, greedy	1400	x15654
1551B1	Wonderful Coloring - 1 greedy, strings	800	x29775
1551A	Polycarp and Coins greedy, math	800	x52038
1550F	Jumping Around binary search, data structures, divide and conquer, dp, dsu, graphs, shortest paths	2700	x694
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1568
1550D	Excellent Arrays binary search, combinatorics, constructive algorithms, implementation, math, sortings, two pointers	2300	x1872