Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
626A	Robot Sequence brute force, implementation	1000	x6135
625E	Frog Fights data structures, greedy	2800	x323
625D	Finals in arithmetic constructive algorithms, implementation, math	2400	x622
625C	K-special Tables constructive algorithms, implementation	1300	x6638
625B	War of the Corporations constructive algorithms, greedy, strings	1200	x10052
625A	Guest From the Past implementation, math	1700	x5350
624B	Making a String greedy, sortings	1100	x7840
624A	Save Luke math	800	x10155
623E	Transforming Sequence combinatorics, dp, fft, math	3300	x526
623D	Birthday greedy, math, probabilities	2700	x466
623C	Electric Charges binary search, dp	2900	x448
623B	Array GCD dp, greedy, number theory	2300	x2039
623A	Graph and String constructive algorithms, graphs	1800	x4354
622F	The Sum of the k-th Powers math	2600	x3443
622E	Ants in Leaves dfs and similar, greedy, sortings, trees	2200	x1970
622D	Optimal Number Permutation constructive algorithms	1900	x2793
622C	Not Equal on a Segment data structures, implementation	1700	x6176
622B	The Time implementation	900	x9062
622A	Infinite Sequence implementation, math	1000	x9052
621E	Wet Shark and Blocks dp, matrices	2000	x2714
621D	Rat Kwesh and Cheese brute force, constructive algorithms, math	2400	x960
621C	Wet Shark and Flowers combinatorics, math, number theory, probabilities	1700	x5275
621B	Wet Shark and Bishops combinatorics, implementation	1300	x10771
621A	Wet Shark and Odd and Even implementation	900	x19559
620F	Xors on Segments data structures, strings, trees	2800	x699
620E	New Year Tree bitmasks, data structures, trees	2100	x5158
620D	Professor GukiZ and Two Arrays binary search, two pointers	2200	x1625
620C	Pearls in a Row greedy	1500	x6348
620B	Grandfather Dovlet’s calculator implementation	1000	x9180
620A	Professor GukiZ's Robot implementation, math	800	x12711
618G	Combining Slimes dp, math, matrices, probabilities	3300	x216
618F	Double Knapsack constructive algorithms, two pointers	3000	x1301
618E	Robot Arm data structures, geometry	2500	x584
618D	Hamiltonian Spanning Tree dfs and similar, dp, graph matchings, greedy, trees	2200	x1684
618C	Constellation geometry, implementation	1600	x4161
618B	Guess the Permutation constructive algorithms	1100	x7829
618A	Slime Combining implementation	800	x8278
617E	XOR and Favorite Number data structures	2200	x7740
617D	Polyline constructive algorithms, implementation	1700	x4127
617C	Watering Flowers implementation	1600	x4756
617B	Chocolate combinatorics	1300	x17264
617A	Elephant math	800	x169096
616F	Expensive Strings string suffix structures, strings	2700	x550
616E	Sum of Remainders implementation, math, number theory	2200	x2652
616D	Longest k-Good Segment binary search, data structures, two pointers	1600	x8697
616C	The Labyrinth dfs and similar	1600	x5293
616B	Dinner with Emma games, greedy	1000	x11254
616A	Comparing Two Long Integers implementation, strings	900	x9497
615E	Hexagons binary search, implementation, math	2100	x962
615D	Multipliers math, number theory	2000	x3778
615C	Running Track dp, greedy, strings, trees	2000	x2251
615B	Longtail Hedgehog dp, graphs	1600	x4898
615A	Bulbs implementation	800	x16604
614B	Gena's Code implementation, math	1400	x6756
614A	Link/Cut Tree brute force, implementation	1500	x7395
613E	Puzzle Lover dp, hashing, strings	3200	x453
613D	Kingdom and its Cities dfs and similar, divide and conquer, dp, graphs, sortings, trees	2800	x2644
613C	Necklace constructive algorithms, math	2500	x972
613B	Skills binary search, brute force, dp, greedy, sortings, two pointers	1900	x2170
613A	Peter and Snow Blower binary search, geometry, ternary search	1900	x3178
612F	Simba on the Circle dp	2600	x364
612E	Square Root of Permutation combinatorics, constructive algorithms, dfs and similar, graphs, math	2200	x1577
612D	The Union of k-Segments greedy, sortings	1800	x3661
612C	Replace To Make Regular Bracket Sequence data structures, expression parsing, math	1400	x7485
612B	HDD is Outdated Technology implementation, math	1200	x6813
612A	The Text Splitting brute force, implementation, strings	1300	x7005
611H	New Year and Forgotten Tree constructive algorithms, flows, graphs	3200	x576
611G	New Year and Cake geometry, two pointers	2900	x422
611F	New Year and Cleaning binary search, implementation	2500	x454
611E	New Year and Three Musketeers data structures, greedy, sortings	2400	x853
611D	New Year and Ancient Prophecy dp, hashing, strings	2000	x2510
611C	New Year and Domino dp, implementation	1500	x8315
611B	New Year and Old Property bitmasks, brute force, implementation	1300	x9754
611A	New Year and Days implementation	900	x11548
610E	Alphabet Permutations data structures, strings	2500	x782
610D	Vika and Segments constructive algorithms, data structures, geometry, two pointers	2300	x1432
610C	Harmony Analysis constructive algorithms	1800	x2782
610B	Vika and Squares constructive algorithms, implementation	1300	x7039
610A	Pasha and Stick combinatorics, math	1000	x21951
609F	Frogs and mosquitoes data structures, greedy	2500	x1185
609E	Minimum spanning tree for each edge data structures, dfs and similar, dsu, graphs, trees	2100	x6902
609D	Gadgets for dollars and pounds binary search, greedy, two pointers	2000	x2545
609C	Load Balancing implementation, math	1500	x6289
609B	The Best Gift constructive algorithms, implementation	1100	x8781
609A	USB Flash Drives greedy, implementation, sortings	800	x16761
608B	Hamming Distance Sum combinatorics, strings	1500	x6466
608A	Saitama Destroys Hotel implementation, math	1000	x9131
607E	Cross Sum binary search, geometry	3300	x245
607D	Power Tree data structures, trees	2600	x554
607C	Marbles hashing, strings	2500	x777
607B	Zuma dp	1900	x10870
607A	Chain Reaction binary search, dp	1600	x9332
606B	Testing Robots implementation	1600	x2730
606A	Magic Spheres implementation	1200	x7738
605E	Intergalaxy Trips probabilities, shortest paths	2700	x1315
605D	Board Game data structures, dfs and similar	2500	x785
605C	Freelancer's Dreams geometry	2400	x1091
605B	Lazy Student constructive algorithms, data structures, graphs	1700	x3380
605A	Sorting Railway Cars constructive algorithms, greedy	1600	x7035
604B	More Cowbell binary search, greedy	1400	x8231