Problemset - Codeforces

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2024 ICPC World Finals: JetBrains Tech Trek
08:30:30

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Problems

#	Name
2010C2	Message Transmission Error (hard version) hashing, string suffix structures, strings, two pointers	1700	x2147
2010C1	Message Transmission Error (easy version) brute force, strings	1400	x5150
2010B	Three Brothers brute force, implementation, math	800	x13669
2010A	Alternating Sum of Numbers brute force, implementation, math	800	x11433
2009G3	Yunli's Subarray Queries (extreme version) data structures, dp, implementation	2700	x231
2009G2	Yunli's Subarray Queries (hard version) binary search, data structures, dp	2200	x861
2009G1	Yunli's Subarray Queries (easy version) binary search, data structures, two pointers	1900	x2885
2009F	Firefly's Queries bitmasks, data structures, flows, math	1700	x5128
2009E	Klee's SUPER DUPER LARGE Array!!! binary search, math, ternary search	1400	x10450
2009D	Satyam and Counting geometry, math	1400	x11582
2009C	The Legend of Freya the Frog implementation, math	1100	x20950
2009B	osu!mania brute force, implementation	800	x34816
2009A	Minimize! brute force, math	800	x41230
2008H	Sakurako's Test binary search, brute force, greedy, math, number theory	2100	x2272
2008G	Sakurako's Task binary search, greedy, math, number theory	1800	x4053
2008F	Sakurako's Box combinatorics, math, number theory	1400	x10670
2008E	Alternating String brute force, data structures, dp, greedy, implementation, strings	1500	x8008
2008D	Sakurako's Hobby dp, dsu, graphs, math	1100	x16760
2008C	Longest Good Array binary search, brute force, math	800	x26210
2008B	Square or Not brute force, math, strings	800	x25115
2008A	Sakurako's Exam brute force, constructive algorithms, greedy, math	800	x30404
2007C	Dora and C++ math, number theory	1500	x10216
2007B	Index and Maximum Value data structures, greedy	900	x18223
2007A	Dora's Set greedy, math, number theory	800	x20280
2006F	Dora's Paint brute force, combinatorics, constructive algorithms, graphs, implementation	3500	x76
2006E	Iris's Full Binary Tree brute force, data structures, dfs and similar, trees	3100	x182
2006D	Iris and Adjacent Products data structures, greedy, implementation, math	2600	x529
2006C	Eri and Expanded Sets data structures, divide and conquer, math, number theory, two pointers	2300	x1330
2006B	Iris and the Tree brute force, data structures, dfs and similar, dsu, math, trees	1800	x2623
2006A	Iris and Game on the Tree constructive algorithms, dfs and similar, games, graphs, greedy, trees	1700	x5576
2005E2	Subtangle Game (Hard Version) bitmasks, data structures, dp, games, greedy, implementation		x410
2005E1	Subtangle Game (Easy Version) dp, games, greedy, implementation		x1634
2005D	Alter the GCD binary search, data structures, divide and conquer, dp, implementation, number theory		x421
2005C	Lazy Narek dp, implementation		x4644
2005B2	The Strict Teacher (Hard Version) binary search, greedy, math, sortings		x12642
2005B1	The Strict Teacher (Easy Version) greedy, math, sortings		x14646
2005A	Simple Palindrome combinatorics, constructive algorithms, greedy		x16528
2004G	Substring Compression data structures, dp, matrices	3200	x259
2004F	Make a Palindrome binary search, brute force, data structures, greedy, math	2600	x965
2004E	Not a Nim Problem brute force, games, math, number theory	2100	x3640
2004D	Colored Portals binary search, brute force, data structures, graphs, greedy, implementation, shortest paths	1600	x9702
2004C	Splitting Items games, greedy, sortings	1100	x21424
2004B	Game with Doors brute force, greedy	1000	x23616
2004A	Closest Point implementation, math	800	x28235
2003F	Turtle and Three Sequences brute force, data structures, dp, greedy, math, probabilities, two pointers	2800	x343
2003E2	Turtle and Inversions (Hard Version) brute force, data structures, divide and conquer, dp, greedy, math, two pointers	2700	x442
2003E1	Turtle and Inversions (Easy Version) brute force, divide and conquer, dp, greedy, math	2600	x627
2003D2	Turtle and a MEX Problem (Hard Version) dfs and similar, dp, graphs, greedy, implementation, math	2100	x3579
2003D1	Turtle and a MEX Problem (Easy Version) greedy, math	1500	x10092
2003C	Turtle and Good Pairs constructive algorithms, greedy, sortings, strings	1200	x16510
2003B	Turtle and Piggy Are Playing a Game 2 games, greedy, sortings	800	x23256
2003A	Turtle and Good Strings greedy, strings	800	x26776
2002H	Counting 101 greedy	3500	x60
2002G	Lattice Optimizing bitmasks, brute force, hashing, meet-in-the-middle	3400	x190
2002F2	Court Blue (Hard Version) brute force, dp, math, number theory	2800	x383
2002F1	Court Blue (Easy Version) brute force, dfs and similar, dp, math, number theory	2600	x758
2002E	Cosmic Rays brute force, data structures, dp	2300	x2200
2002D2	DFS Checker (Hard Version) binary search, data structures, dfs and similar, graphs, hashing, trees	2300	x2160
2002D1	DFS Checker (Easy Version) brute force, data structures, dfs and similar, graphs, hashing, trees	1900	x4035
2002C	Black Circles brute force, geometry, greedy, math	1200	x13889
2002B	Removals Game constructive algorithms, games	1000	x17109
2002A	Distanced Coloring constructive algorithms, implementation, math	800	x18419
2001E2	Deterministic Heap (Hard Version) combinatorics, dp, trees	2900	x176
2001E1	Deterministic Heap (Easy Version) combinatorics, dp, math, trees	2400	x1097
2001D	Longest Max Min Subsequence brute force, constructive algorithms, data structures, greedy, implementation	1900	x4521
2001C	Guess The Tree binary search, brute force, dfs and similar, divide and conquer, dsu, greedy, interactive, trees	1500	x9903
2001B	Generate Permutation constructive algorithms	800	x22865
2001A	Make All Equal greedy, implementation	800	x27897
2000H	Ksyusha and the Loaded Set binary search, brute force, data structures, implementation	2200	x1464
2000G	Call During the Journey binary search, brute force, graphs, greedy, shortest paths	2100	x1995
2000F	Color Rows and Columns dp, greedy, implementation, math	1900	x4857
2000E	Photoshoot for Gorillas combinatorics, data structures, greedy, math	1400	x12195
2000D	Right Left Wrong greedy, implementation, two pointers	1200	x21076
2000C	Numeric String Template data structures, strings	1000	x23559
2000B	Seating in a Bus two pointers	800	x31736
2000A	Primary Task implementation, math, strings	800	x34815
1999G2	Ruler (hard version) binary search, interactive, ternary search	1700	x6898
1999G1	Ruler (easy version) binary search, interactive	1500	x9315
1999F	Expected Median combinatorics, math	1500	x9482
1999E	Triple Operations dp, implementation, math	1300	x17104
1999D	Slavic's Exam greedy, implementation, strings	1100	x25086
1999C	Showering greedy, implementation	800	x32760
1999B	Card Game brute force, constructive algorithms, implementation	1000	x29806
1999A	A+B Again? implementation, math	800	x47190
1998E2	Eliminating Balls With Merging (Hard Version) binary search, brute force, data structures, divide and conquer, greedy, implementation	2500	x607
1998E1	Eliminating Balls With Merging (Easy Version) binary search, brute force, data structures, divide and conquer, greedy	2200	x1659
1998D	Determine Winning Islands in Race data structures, dp, graphs, greedy, shortest paths	2100	x2942
1998C	Perform Operations to Maximize Score binary search, brute force, constructive algorithms, greedy, implementation	1900	x5659
1998B	Minimize Equal Sum Subarrays constructive algorithms, math, number theory	1000	x22196
1998A	Find K Distinct Points with Fixed Center constructive algorithms, implementation, math	800	x22862
1997F	Chips on a Line brute force, combinatorics, dp, greedy, math	2700	x824
1997E	Level Up binary search, brute force, data structures, divide and conquer, implementation	2200	x2635
1997D	Maximize the Root binary search, dfs and similar, dp, greedy, trees	1500	x11538
1997C	Even Positions constructive algorithms, data structures, greedy	1100	x20457
1997B	Make Three Regions constructive algorithms, two pointers	1100	x19617
1997A	Strong Password brute force, implementation, strings	800	x27305
1996G	Penacony brute force, data structures, graphs, greedy, hashing	2200	x1488
1996F	Bomb binary search, greedy, math	1900	x4292
1996E	Decode combinatorics, data structures, implementation, math	1600	x8861
1996D	Fun binary search, brute force, combinatorics, math, number theory	1500	x14758

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