Problemset - Codeforces

Problems

#	Name
644B	Processing Queries *special problem, constructive algorithms, data structures, two pointers	1700	x2705
643G	Choosing Ads data structures	3200	x1018
643F	Bears and Juice dp, math, meet-in-the-middle	2900	x717
643E	Bear and Destroying Subtrees dp, math, probabilities, trees	2700	x640
643D	Bearish Fanpages	2900	x316
643C	Levels and Regions dp	2400	x1401
643B	Bear and Two Paths constructive algorithms, graphs	1600	x3179
643A	Bear and Colors implementation	1500	x4151
641G	Little Artem and Graph	2300	x91
641F	Little Artem and 2-SAT	3000	x195
641E	Little Artem and Time Machine data structures	2000	x3321
641D	Little Artem and Random Variable dp, implementation, math, probabilities	2400	x1282
641C	Little Artem and Dance brute force, constructive algorithms, implementation	1800	x3081
641B	Little Artem and Matrix implementation	1400	x3988
639F	Bear and Chemistry data structures, dfs and similar, graphs, trees	3300	x424
639E	Bear and Paradox binary search, greedy, math, sortings	2800	x583
639D	Bear and Contribution data structures, greedy, sortings, two pointers	2400	x969
639C	Bear and Polynomials hashing, implementation, math	2200	x1205
639B	Bear and Forgotten Tree 3 constructive algorithms, graphs, trees	1600	x6533
638D	Three-dimensional Turtle Super Computer brute force, dfs and similar, graphs	1800	x722
638C	Road Improvement *special problem, dfs and similar, graphs, greedy, trees	1800	x1668
638B	Making Genome in Berland *special problem, dfs and similar, strings	1500	x1972
637D	Running with Obstacles *special problem, data structures, dp, greedy	1600	x2025
637C	Promocodes with Mistakes *special problem, brute force, constructive algorithms, implementation	1400	x2428
633H	Fibonacci-ish II data structures, implementation	3100	x601
633G	Yash And Trees bitmasks, data structures, dfs and similar, math, number theory	2800	x782
633F	The Chocolate Spree dfs and similar, dp, graphs, trees	2600	x1002
633E	Startup Funding binary search, constructive algorithms, data structures, probabilities, two pointers	2400	x587
633D	Fibonacci-ish brute force, dp, hashing, implementation, math	2000	x2816
633C	Spy Syndrome 2 data structures, dp, hashing, implementation, sortings, string suffix structures, strings	1900	x2792
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x1104
632E	Thief in a Shop divide and conquer, dp, fft, math	2400	x2836
632D	Longest Subsequence brute force, math, number theory	2100	x3807
632C	The Smallest String Concatenation sortings, strings	1700	x7981
632B	Alice, Bob, Two Teams brute force, constructive algorithms	1400	x4015
631E	Product Sum data structures, dp, geometry	2600	x2421
631D	Messenger data structures, hashing, implementation, string suffix structures, strings	2100	x2089
631C	Report data structures, sortings	1700	x3800
630Q	Pyramids geometry, math	1700	x1284
630P	Area of a Star geometry	2100	x1133
630O	Arrow geometry	2000	x775
630M	Turn geometry, math	1800	x1184
630L	Cracking the Code implementation, math	1400	x3607
630K	Indivisibility math, number theory	1500	x5381
630I	Parking Lot combinatorics, math	1700	x6863
630H	Benches combinatorics, math	1400	x5042
630G	Challenge Pennants combinatorics, math	1600	x2803
630E	A rectangle math	1900	x2339
629E	Famil Door and Roads combinatorics, data structures, dfs and similar, dp, probabilities, trees	2300	x1024
629D	Babaei and Birthday Cake data structures, dp	2000	x4057
629C	Famil Door and Brackets dp, strings	2000	x2803
628F	Bear and Fair Set flows, graphs	2500	x778
628E	Zbazi in Zeydabad data structures, implementation	2300	x897
628D	Magic Numbers dp	2200	x6152
627F	Island Puzzle dfs and similar, dsu, graphs, trees	3400	x239
627E	Orchestra two pointers	3000	x594
627D	Preorder Test binary search, dfs and similar, dp, graphs, greedy, trees	2600	x874
627C	Package Delivery data structures, divide and conquer, greedy	2200	x1176
627B	Factory Repairs data structures	1700	x2935
627A	XOR Equation dp, math	1700	x4248
626G	Raffles data structures, dp, greedy, math	3100	x537
626F	Group Projects dp	2400	x2968
626E	Simple Skewness binary search, math, ternary search	2400	x1393
626D	Jerry's Protest brute force, combinatorics, dp, probabilities	1800	x2767
626C	Block Towers brute force, greedy, math, number theory	1600	x4357
625E	Frog Fights data structures, greedy	2800	x348
625D	Finals in arithmetic constructive algorithms, implementation, math	2400	x635
625A	Guest From the Past implementation, math	1700	x5424
623E	Transforming Sequence combinatorics, dp, fft, math	3300	x550
623D	Birthday greedy, math, probabilities	2700	x499
623C	Electric Charges binary search, dp	2900	x481
623B	Array GCD dp, greedy, number theory	2300	x2163
623A	Graph and String constructive algorithms, graphs	1800	x4507
622F	The Sum of the k-th Powers math	2600	x3905
622E	Ants in Leaves dfs and similar, greedy, sortings, trees	2200	x2104
622D	Optimal Number Permutation constructive algorithms	1900	x3012
622C	Not Equal on a Segment data structures, implementation	1700	x6734
621E	Wet Shark and Blocks dp, matrices	2000	x2871
621D	Rat Kwesh and Cheese brute force, constructive algorithms, math	2400	x998
621C	Wet Shark and Flowers combinatorics, math, number theory, probabilities	1700	x5584
620F	Xors on Segments data structures, strings, trees	2800	x743
620E	New Year Tree bitmasks, data structures, trees	2100	x5721
620D	Professor GukiZ and Two Arrays binary search, two pointers	2200	x1730
620C	Pearls in a Row greedy	1500	x6853
618G	Combining Slimes dp, math, matrices, probabilities	3300	x241
618F	Double Knapsack constructive algorithms, two pointers	3000	x1408
618E	Robot Arm data structures, geometry	2500	x646
618D	Hamiltonian Spanning Tree dfs and similar, dp, graph matchings, greedy, trees	2200	x1747
618C	Constellation geometry, implementation	1600	x4296
617E	XOR and Favorite Number data structures	2200	x8554
617D	Polyline constructive algorithms, implementation	1700	x4226
617C	Watering Flowers implementation	1600	x4881
616F	Expensive Strings data structures, sortings, string suffix structures, strings	2700	x608
616E	Sum of Remainders implementation, math, number theory	2200	x2983
616D	Longest k-Good Segment binary search, data structures, two pointers	1600	x9725
616C	The Labyrinth dfs and similar	1600	x5710
615E	Hexagons binary search, implementation, math	2100	x987
615D	Multipliers math, number theory	2000	x3942
615C	Running Track dp, greedy, strings, trees	2000	x2331
615B	Longtail Hedgehog dp, graphs	1600	x5124