Problemset - Codeforces

Problems

#	Name
1670F	Jee, You See? bitmasks, combinatorics, dp	2400	x991
1670E	Hemose on the Tree bitmasks, constructive algorithms, dfs and similar, trees	2200	x1774
1670D	Very Suspicious binary search, brute force, geometry, greedy, implementation, math	1700	x5171
1670C	Where is the Pizza? data structures, dfs and similar, dsu, graphs, implementation, math	1400	x10032
1667F	Yin Yang implementation	3500	x101
1667E	Centroid Probabilities combinatorics, dp, fft, math	3000	x682
1667D	Edge Elimination constructive algorithms, dfs and similar, dp, trees	2900	x674
1667C	Half Queen Cover constructive algorithms, math	2400	x1674
1667B	Optimal Partition data structures, dp	2100	x3757
1666L	Labyrinth dfs and similar, graphs	1800	x3165
1666K	Kingdom Partition flows	3200	x251
1666J	Job Lookup constructive algorithms, dp, shortest paths, trees	2100	x1367
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1479
1666H	Heroes of Might math	3500	x69
1666G	Global Warming geometry, math	3100	x137
1666F	Fancy Stack combinatorics, dp, implementation	2200	x1187
1666E	Even Split binary search, constructive algorithms, greedy, math	2500	x742
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3218
1666B	Budget Distribution	3300	x55
1666A	Admissible Map	3300	x113
1665E	MinimizOR bitmasks, brute force, data structures, divide and conquer, greedy, implementation, two pointers	2500	x1538
1665D	GCD Guess bitmasks, chinese remainder theorem, constructive algorithms, games, interactive, math, number theory	2000	x4027
1665C	Tree Infection binary search, greedy, sortings, trees	1600	x8438
1661F	Teleporters binary search, greedy	2600	x604
1661E	Narrow Components brute force, data structures, dp, dsu, math, trees	2500	x959
1661D	Progressions Covering data structures, greedy	1900	x4798
1661C	Water the Trees binary search, greedy, math	1700	x9440
1660F2	Promising String (hard version) data structures, implementation, math, strings	2100	x2752
1660F1	Promising String (easy version) brute force, implementation, math, strings	1700	x7331
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x7381
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x8756
1659F	Tree and Permutation Game dfs and similar, games, graphs, trees	3000	x192
1659E	AND-MEX Walk bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2200	x1606
1659D	Reverse Sort Sum constructive algorithms, data structures, greedy, implementation, math, two pointers	1900	x4042
1659C	Line Empire binary search, brute force, dp, greedy, implementation, math	1500	x10696
1658F	Juju and Binary String brute force, constructive algorithms, greedy, math	2700	x774
1658E	Gojou and Matrix Game data structures, dp, games, hashing, implementation, math, number theory, sortings	2500	x1060
1658D2	388535 (Hard Version) bitmasks, brute force, data structures, math	2300	x2591
1658D1	388535 (Easy Version) bitmasks, math	1600	x9166
1658C	Shinju and the Lost Permutation constructive algorithms, math	1700	x9392
1657F	Words on Tree 2-sat, dfs and similar, dsu, graphs, trees	2600	x580
1657E	Star MST combinatorics, dp, graph matchings, math	2200	x2142
1657D	For Gamers. By Gamers. binary search, brute force, greedy, math, sortings	2000	x4931
1656I	Neighbour Ordering constructive algorithms, graphs	3500	x106
1656H	Equal LCM Subsets data structures, math, number theory	3200	x595
1656G	Cycle Palindrome constructive algorithms, graphs, math	3200	x386
1656F	Parametric MST binary search, constructive algorithms, graphs, greedy, math, sortings	2600	x1072
1656E	Equal Tree Sums constructive algorithms, dfs and similar, math, trees	2200	x3494
1656D	K-good constructive algorithms, math, number theory	1900	x6925
1654H	Three Minimums combinatorics, constructive algorithms, divide and conquer, dp, fft, math	3500	x80
1654G	Snowy Mountain data structures, dfs and similar, graphs, greedy, shortest paths, trees	2900	x409
1654F	Minimal String Xoration bitmasks, data structures, divide and conquer, greedy, hashing, sortings, strings	2800	x1214
1654E	Arithmetic Operations brute force, data structures, graphs, math	2300	x2106
1654D	Potion Brewing Class dfs and similar, math, number theory, trees	2100	x2866
1654C	Alice and the Cake data structures, greedy, implementation, sortings	1400	x13572
1651F	Tower Defense binary search, brute force, data structures	3000	x382
1651E	Sum of Matchings brute force, combinatorics, constructive algorithms, dfs and similar, graph matchings, greedy, math	2600	x524
1651D	Nearest Excluded Points binary search, data structures, dfs and similar, graphs, shortest paths	1900	x5205
1651C	Fault-tolerant Network brute force, data structures, implementation	1500	x10778
1650G	Counting Shortcuts data structures, dfs and similar, dp, graphs, shortest paths	2100	x2527
1650F	Vitaly and Advanced Useless Algorithms dp, greedy, implementation	2200	x1499
1650E	Rescheduling the Exam binary search, data structures, greedy, implementation, math, sortings	1900	x4174
1648F	Two Avenues data structures, dfs and similar, graphs	3500	x135
1648E	Air Reform data structures, dfs and similar, divide and conquer, dsu, graphs, implementation, trees	3200	x415
1648D	Serious Business data structures, divide and conquer, dp, implementation, shortest paths	2800	x890
1648C	Tyler and Strings combinatorics, data structures, implementation	1900	x2999
1648B	Integral Array brute force, constructive algorithms, data structures, math	1800	x6489
1648A	Weird Sum combinatorics, data structures, geometry, math, matrices, sortings	1400	x13153
1647F	Madoka and Laziness dp, greedy	3100	x458
1647E	Madoka and the Sixth-graders data structures, dfs and similar, greedy	2500	x998
1647D	Madoka and the Best School in Russia constructive algorithms, dp, math, number theory	1900	x5325
1646F	Playing Around the Table constructive algorithms, greedy, implementation	2900	x530
1646E	Power Board brute force, dp, math, number theory	2200	x2482
1646D	Weight the Tree constructive algorithms, dfs and similar, dp, implementation, trees	2000	x3808
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x14345
1644F	Basis combinatorics, fft, math, number theory	2900	x329
1644E	Expand the Path brute force, combinatorics, data structures, implementation, math	1900	x3125
1644D	Cross Coloring data structures, implementation, math	1700	x7308
1644C	Increase Subarray Sums brute force, dp, greedy, implementation	1400	x13868
1641F	Covering Circle geometry	3500	x101
1641E	Special Positions combinatorics, divide and conquer, fft, math	3300	x210
1641D	Two Arrays bitmasks, brute force, combinatorics, greedy, hashing, math, two pointers	2700	x1189
1641C	Anonymity Is Important binary search, brute force, data structures, dsu, greedy, sortings	2200	x2506
1641B	Repetitions Decoding constructive algorithms, implementation, sortings	2000	x3829
1638F	Two Posters brute force, data structures, greedy, two pointers	3200	x227
1638E	Colorful Operations brute force, data structures, implementation	2400	x1948
1638D	Big Brush constructive algorithms, data structures, greedy, implementation	2000	x4236
1637H	Minimize Inversions Number data structures, greedy, math, sortings	3500	x326
1637G	Birthday constructive algorithms, greedy, math	3000	x519
1637F	Towers constructive algorithms, dfs and similar, dp, greedy, trees	2500	x1798
1637E	Best Pair binary search, brute force, implementation	2100	x3388
1637D	Yet Another Minimization Problem dp, greedy, math	1800	x7820
1635F	Closest Pair data structures, greedy	2800	x1140
1635E	Cars 2-sat, constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	2200	x2265
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x6308
1634F	Fibonacci Additions brute force, data structures, hashing, implementation, math	2700	x1617
1634E	Fair Share constructive algorithms, data structures, dfs and similar, graph matchings, graphs	2400	x1730
1634D	Finding Zero constructive algorithms, interactive, math	2000	x4413
1634B	Fortune Telling bitmasks, math	1400	x16842
1633F	Perfect Matching data structures, divide and conquer, interactive, trees	2800	x323