Problemset - Codeforces

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Codeforces Round 976 (Div. 2) and Divide By Zero 9.0
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Problems

#	Name
2014H	Robin Hood Archery data structures, divide and conquer, greedy, hashing	1900	x2543
2014G	Milky Days brute force, data structures, greedy, implementation	2200	x880
2014F	Sheriff's Defense dfs and similar, dp, greedy, trees	2000	x2555
2014E	Rendez-vous de Marian et Robin dfs and similar, graphs, shortest paths	1800	x4178
2014D	Robert Hood and Mrs Hood brute force, data structures, greedy, sortings	1400	x9324
2013F2	Game in Tree (Hard Version) binary search, data structures, trees	3500	x60
2013F1	Game in Tree (Easy Version) binary search, brute force, data structures, dp, games, greedy, implementation, trees	2700	x351
2013E	Prefix GCD brute force, dp, greedy, math, number theory	2200	x2420
2013D	Minimize the Difference binary search, greedy	1900	x4788
2013C	Password Cracking constructive algorithms, interactive, strings	1400	x9802
2010C2	Message Transmission Error (hard version) hashing, string suffix structures, strings, two pointers	1700	x2581
2010C1	Message Transmission Error (easy version) brute force, strings	1400	x6015
2009G3	Yunli's Subarray Queries (extreme version) data structures, dp, implementation	2700	x268
2009G2	Yunli's Subarray Queries (hard version) binary search, data structures, dp	2200	x1007
2009G1	Yunli's Subarray Queries (easy version) binary search, data structures, two pointers	1900	x3349
2009F	Firefly's Queries bitmasks, data structures, flows, math	1700	x5743
2009E	Klee's SUPER DUPER LARGE Array!!! binary search, math, ternary search	1400	x11630
2009D	Satyam and Counting geometry, math	1400	x12735
2008H	Sakurako's Test binary search, brute force, greedy, math, number theory	2100	x2545
2008G	Sakurako's Task binary search, greedy, math, number theory	1800	x4555
2008F	Sakurako's Box combinatorics, math, number theory	1400	x11431
2008E	Alternating String brute force, data structures, dp, greedy, implementation, strings	1500	x8738
2007C	Dora and C++ math, number theory	1500	x11006
2006F	Dora's Paint brute force, combinatorics, constructive algorithms, graphs, implementation	3500	x92
2006E	Iris's Full Binary Tree brute force, data structures, dfs and similar, trees	3100	x200
2006D	Iris and Adjacent Products data structures, greedy, implementation, math	2600	x591
2006C	Eri and Expanded Sets data structures, divide and conquer, math, number theory, two pointers	2300	x1454
2006B	Iris and the Tree brute force, data structures, dfs and similar, dsu, math, trees	1800	x2906
2006A	Iris and Game on the Tree constructive algorithms, dfs and similar, games, graphs, greedy, trees	1700	x6060
2005E2	Subtangle Game (Hard Version) data structures, dp, games, greedy, implementation	2500	x656
2005E1	Subtangle Game (Easy Version) dp, games, greedy, implementation	2100	x2306
2005D	Alter the GCD binary search, brute force, data structures, divide and conquer, implementation, number theory	2400	x696
2005C	Lazy Narek dp, implementation, strings	1800	x6210
2004G	Substring Compression data structures, dp, matrices	3200	x274
2004F	Make a Palindrome binary search, brute force, data structures, greedy, math	2600	x1051
2004E	Not a Nim Problem brute force, games, math, number theory	2100	x3783
2004D	Colored Portals binary search, brute force, data structures, graphs, greedy, implementation, shortest paths	1600	x9995
2003F	Turtle and Three Sequences brute force, data structures, dp, greedy, math, probabilities, two pointers	2800	x363
2003E2	Turtle and Inversions (Hard Version) brute force, data structures, divide and conquer, dp, greedy, math, two pointers	2700	x472
2003E1	Turtle and Inversions (Easy Version) brute force, divide and conquer, dp, greedy, math	2600	x665
2003D2	Turtle and a MEX Problem (Hard Version) dfs and similar, dp, graphs, greedy, implementation, math	2100	x3740
2003D1	Turtle and a MEX Problem (Easy Version) greedy, math	1500	x10444
2002H	Counting 101 greedy	3500	x66
2002G	Lattice Optimizing bitmasks, brute force, hashing, meet-in-the-middle	3400	x205
2002F2	Court Blue (Hard Version) brute force, dp, math, number theory	2800	x400
2002F1	Court Blue (Easy Version) brute force, dfs and similar, dp, math, number theory	2600	x779
2002E	Cosmic Rays brute force, data structures, dp	2300	x2294
2002D2	DFS Checker (Hard Version) binary search, data structures, dfs and similar, graphs, hashing, trees	2300	x2229
2002D1	DFS Checker (Easy Version) brute force, data structures, dfs and similar, graphs, hashing, trees	1900	x4127
2001E2	Deterministic Heap (Hard Version) combinatorics, dp, trees	2900	x187
2001E1	Deterministic Heap (Easy Version) combinatorics, dp, math, trees	2400	x1154
2001D	Longest Max Min Subsequence brute force, constructive algorithms, data structures, greedy, implementation	1900	x4693
2001C	Guess The Tree binary search, brute force, dfs and similar, divide and conquer, dsu, greedy, interactive, trees	1500	x10166
2000H	Ksyusha and the Loaded Set binary search, brute force, data structures, implementation	2200	x1520
2000G	Call During the Journey binary search, brute force, graphs, greedy, shortest paths	2100	x2094
2000F	Color Rows and Columns dp, greedy, implementation, math	1900	x5045
2000E	Photoshoot for Gorillas combinatorics, data structures, greedy, math	1400	x12514
1999G2	Ruler (hard version) binary search, interactive, ternary search	1700	x7413
1999G1	Ruler (easy version) binary search, interactive	1500	x9559
1999F	Expected Median combinatorics, math	1500	x9685
1998E2	Eliminating Balls With Merging (Hard Version) binary search, brute force, data structures, divide and conquer, greedy, implementation	2500	x634
1998E1	Eliminating Balls With Merging (Easy Version) binary search, brute force, data structures, divide and conquer, greedy	2200	x1716
1998D	Determine Winning Islands in Race data structures, dp, graphs, greedy, shortest paths	2100	x3067
1998C	Perform Operations to Maximize Score binary search, brute force, constructive algorithms, greedy, implementation	1900	x5811
1997F	Chips on a Line brute force, combinatorics, dp, greedy, math	2700	x845
1997E	Level Up binary search, brute force, data structures, divide and conquer, implementation	2200	x2702
1997D	Maximize the Root binary search, dfs and similar, dp, greedy, trees	1500	x11807
1996G	Penacony brute force, data structures, graphs, greedy, hashing	2200	x1547
1996F	Bomb binary search, greedy, math	1900	x4436
1996E	Decode combinatorics, data structures, implementation, math	1600	x9068
1996D	Fun binary search, brute force, combinatorics, math, number theory	1500	x15043
1995E2	Let Me Teach You a Lesson (Hard Version) data structures, dp, matrices, two pointers	2900	x287
1995E1	Let Me Teach You a Lesson (Easy Version) 2-sat, data structures, dp, matrices, two pointers	2700	x359
1995D	Cases bitmasks, brute force, dp, strings	2300	x2236
1995C	Squaring brute force, constructive algorithms, greedy, implementation, math, number theory	1800	x8196
1995B2	Bouquet (Hard Version) binary search, data structures, greedy, math, sortings, two pointers	1700	x8374
1994H	Fortnite combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings	3500	x494
1994G	Minecraft bitmasks, brute force, dp, graphs, math	2600	x1174
1994F	Stardew Valley constructive algorithms, dfs and similar, graphs, trees	2500	x1114
1994E	Wooden Game bitmasks, greedy, math, trees	2000	x4273
1994D	Funny Game constructive algorithms, dsu, graphs, greedy, math, number theory, trees	1900	x5494
1994C	Hungry Games binary search, dp, two pointers	1600	x10208
1993F2	Dyn-scripted Robot (Hard Version) chinese remainder theorem, math, number theory	2800	x373
1993F1	Dyn-scripted Robot (Easy Version) brute force, chinese remainder theorem, constructive algorithms, math, number theory	2400	x934
1993E	Xor-Grid Problem bitmasks, constructive algorithms, dp, implementation	2700	x480
1993D	Med-imize binary search, dp, greedy	2200	x3546
1993C	Light Switches implementation, math	1400	x13008
1992G	Ultra-Meow combinatorics, dp, math	2000	x2942
1992F	Valuable Cards brute force, dp, greedy, number theory, two pointers	1900	x5515
1992E	Novice's Mistake brute force, constructive algorithms, implementation, math, strings	1700	x8809
1991I	Grid Game constructive algorithms, games, graph matchings, greedy, interactive	3500	x66
1991H	Prime Split Game bitmasks, dp, fft, games, math, number theory	3300	x303
1991G	Grid Reset constructive algorithms, greedy, implementation	2700	x530
1991F	Triangle Formation brute force, greedy, implementation, math, sortings	2200	x2172
1991E	Coloring Game constructive algorithms, dfs and similar, games, graphs, greedy, interactive	1900	x3998
1991D	Prime XOR Coloring bitmasks, constructive algorithms, graphs, greedy, math, number theory	1900	x6217
1990F	Polygonal Segments brute force, data structures, divide and conquer, dp, greedy, two pointers	2800	x264
1990E2	Catch the Mole(Hard Version) binary search, data structures, dfs and similar, divide and conquer, interactive, trees	2600	x825
1990E1	Catch the Mole(Easy Version) binary search, data structures, dfs and similar, interactive, trees	2500	x890
1990D	Grid Puzzle bitmasks, brute force, dp, greedy, implementation	1800	x5998

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