Problemset - Codeforces

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Codeforces Round 998 (Div. 3)
09:24:15
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Problems

#	Name
1999G2	Ruler (hard version) binary search, interactive, ternary search	1700	x8266
1999G1	Ruler (easy version) binary search, interactive	1500	x11237
1999F	Expected Median combinatorics, math	1500	x11129
1999E	Triple Operations dp, implementation, math	1300	x19737
1999D	Slavic's Exam greedy, implementation, strings	1100	x28281
1999C	Showering greedy, implementation	800	x36559
1999B	Card Game brute force, constructive algorithms, implementation	1000	x34352
1999A	A+B Again? implementation, math	800	x60583
1998E2	Eliminating Balls With Merging (Hard Version) binary search, brute force, data structures, divide and conquer, greedy, implementation	2500	x736
1998E1	Eliminating Balls With Merging (Easy Version) binary search, brute force, data structures, divide and conquer, greedy	2200	x1930
1998D	Determine Winning Islands in Race data structures, dp, graphs, greedy, shortest paths	2100	x3442
1998C	Perform Operations to Maximize Score binary search, brute force, constructive algorithms, greedy, implementation	1900	x6320
1998B	Minimize Equal Sum Subarrays constructive algorithms, math, number theory	1000	x24705
1998A	Find K Distinct Points with Fixed Center constructive algorithms, implementation, math	800	x24517
1997F	Chips on a Line brute force, combinatorics, dp, greedy, math	2700	x1007
1997E	Level Up binary search, brute force, data structures, divide and conquer, implementation	2200	x3243
1997D	Maximize the Root binary search, dfs and similar, dp, greedy, trees	1500	x13129
1997C	Even Positions constructive algorithms, data structures, greedy	1100	x22739
1997B	Make Three Regions constructive algorithms, two pointers	1100	x21194
1997A	Strong Password brute force, implementation, strings	800	x30187
1996G	Penacony brute force, data structures, graphs, greedy, hashing	2200	x1840
1996F	Bomb binary search, greedy, math	1900	x5050
1996E	Decode combinatorics, data structures, implementation, math	1600	x10289
1996D	Fun binary search, brute force, combinatorics, math, number theory	1500	x16572
1996C	Sort dp, greedy, sortings, strings	1200	x23908
1996B	Scale greedy, implementation	800	x33544
1996A	Legs binary search, math, ternary search	800	x45392
1995E2	Let Me Teach You a Lesson (Hard Version) data structures, dp, matrices, two pointers	2900	x318
1995E1	Let Me Teach You a Lesson (Easy Version) 2-sat, data structures, dp, matrices, two pointers	2700	x401
1995D	Cases bitmasks, brute force, dp, strings	2300	x2461
1995C	Squaring brute force, constructive algorithms, greedy, implementation, math, number theory	1800	x8894
1995B2	Bouquet (Hard Version) binary search, data structures, greedy, math, sortings, two pointers	1700	x9048
1995B1	Bouquet (Easy Version) binary search, brute force, greedy, sortings, two pointers	1100	x18521
1995A	Diagonals brute force, greedy, implementation, math	800	x24686
1994H	Fortnite combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings	3500	x713
1994G	Minecraft bitmasks, brute force, dp, graphs, math	2600	x1304
1994F	Stardew Valley constructive algorithms, dfs and similar, graphs, trees	2500	x1256
1994E	Wooden Game bitmasks, greedy, math, trees	2000	x4674
1994D	Funny Game constructive algorithms, dsu, graphs, greedy, math, number theory, trees	1900	x5964
1994C	Hungry Games binary search, dp, two pointers	1600	x11228
1994B	Fun Game bitmasks, constructive algorithms, greedy, math	1100	x17163
1994A	Diverse Game constructive algorithms, greedy, implementation	800	x20614
1993F2	Dyn-scripted Robot (Hard Version) chinese remainder theorem, math, number theory	2800	x435
1993F1	Dyn-scripted Robot (Easy Version) brute force, chinese remainder theorem, constructive algorithms, math, number theory	2400	x1032
1993E	Xor-Grid Problem bitmasks, constructive algorithms, dp, implementation	2700	x572
1993D	Med-imize binary search, dp, greedy	2200	x3867
1993C	Light Switches implementation, math	1400	x14104
1993B	Parity and Sum constructive algorithms, greedy	1100	x23548
1993A	Question Marks greedy, implementation	800	x30195
1992G	Ultra-Meow combinatorics, dp, math	2000	x3269
1992F	Valuable Cards brute force, dp, greedy, number theory, two pointers	1900	x5948
1992E	Novice's Mistake brute force, constructive algorithms, implementation, math, strings	1700	x9434
1992D	Test of Love dp, greedy, implementation	1200	x21101
1992C	Gorilla and Permutation constructive algorithms, math	900	x29925
1992B	Angry Monk greedy, math, sortings	800	x34997
1992A	Only Pluses brute force, constructive algorithms, greedy, math, sortings	800	x42736
1991I	Grid Game constructive algorithms, games, graph matchings, greedy, interactive	3500	x136
1991H	Prime Split Game bitmasks, dp, fft, games, math, number theory	3300	x514
1991G	Grid Reset constructive algorithms, greedy, implementation	2700	x627
1991F	Triangle Formation brute force, greedy, implementation, math, sortings	2200	x2438
1991E	Coloring Game constructive algorithms, dfs and similar, games, graphs, greedy, interactive	1900	x4356
1991D	Prime XOR Coloring bitmasks, constructive algorithms, graphs, greedy, math, number theory	1900	x6856
1991C	Absolute Zero constructive algorithms, greedy, math	1300	x15199
1991B	AND Reconstruction bitmasks, constructive algorithms, greedy	1100	x16885
1991A	Maximize the Last Element greedy, implementation	800	x22302
1990F	Polygonal Segments brute force, data structures, divide and conquer, dp, greedy, two pointers	2800	x315
1990E2	Catch the Mole(Hard Version) binary search, data structures, dfs and similar, divide and conquer, interactive, trees	2600	x907
1990E1	Catch the Mole(Easy Version) binary search, data structures, dfs and similar, interactive, trees	2500	x968
1990D	Grid Puzzle bitmasks, brute force, dp, greedy, implementation	1800	x6550
1990C	Mad MAD Sum brute force, greedy, math	1500	x12160
1990B	Array Craft constructive algorithms, greedy	1200	x17200
1990A	Submission Bait brute force, games, greedy, sortings	900	x23535
1989F	Simultaneous Coloring dfs and similar, divide and conquer, graphs	3000	x471
1989E	Distance to Different combinatorics, dp, math	2300	x2063
1989D	Smithing Skill brute force, data structures, dp, greedy, math, sortings, two pointers	1900	x6188
1989C	Two Movies greedy, math	1400	x19257
1989B	Substring and Subsequence brute force, greedy, strings	1200	x20784
1989A	Catch the Coin implementation	800	x26959
1988F	Heartbeat combinatorics, dp, fft, math	3000	x243
1988E	Range Minimum Sum binary search, brute force, data structures, divide and conquer, implementation	2300	x1506
1988D	The Omnipotent Monster Killer brute force, dfs and similar, dp, trees	2000	x5131
1988C	Increasing Sequence with Fixed OR bitmasks, constructive algorithms, greedy	1300	x17402
1988B	Make Majority greedy, implementation	900	x23529
1988A	Split the Multiset brute force, greedy, implementation, math	900	x24008
1987H	Fumo Temple interactive	3500	x109
1987G2	Spinning Round (Hard Version) divide and conquer, dp, trees	3500	x176
1987G1	Spinning Round (Easy Version) divide and conquer, dp, trees	2900	x280
1987F2	Interesting Problem (Hard Version) dp	2600	x1072
1987F1	Interesting Problem (Easy Version) dp	2500	x1167
1987E	Wonderful Tree! brute force, data structures, dfs and similar, dsu, greedy, trees	2000	x3506
1987D	World is Mine dp, games	1800	x7407
1987C	Basil's Garden dp, greedy	1200	x17951
1987B	K-Sort greedy	1000	x21099
1987A	Upload More RAM greedy, math	800	x25993
1986G2	Permutation Problem (Hard Version) brute force, data structures, hashing, math, number theory	2500	x1143
1986G1	Permutation Problem (Simple Version) binary search, brute force, combinatorics, data structures, math, number theory	2200	x1558
1986F	Non-academic Problem dfs and similar, graphs, trees	1900	x4785
1986E	Beautiful Array greedy, math, number theory, sortings	1700	x9157
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x15709
1986C	Update Queries data structures, greedy, sortings	1100	x23390