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Contest
Problem
Difficuilty
Tags
Weekly Contest 10
1131
The Function in Permutations
M+
Math
1904
Put small balls
H
Binary Search, DP
Weekly Contest 11
1882
Fair Indexes
M
Others
1828
Lake Escape
H-
DFS
Weekly Contest 13
266
Expect Distance
H
Math
264
Counting Universal Subarrays
M
Others
240
Program Check
H
DFS, BFS, Graph
Weekly Contest 14
257
Longest String Chain
M
DP
265
Maximum Non-Negative Subarray
M
DP
261
Maximum Connected Area
M
DFS
274
Make binary tree average
H+
Recursion,Tree
Weekly Contest 15
271
prefix notation to postfix notation
H
Stack
275
Moving Shed
E
Greedy
277
Word Spacing
M
Binary Search
281
Paint the Ceiling
M
Two Pointers
Weekly Contest 16
291
Second Diameter
H
BFS,Graph
290
Sorted Arrangement
H
BIT
273
Test Strategy
M
DP
Weekly Contest 17
256
The Maximum Order
M+
Greedy
1313
Bipartite Graph
H-
Union Find
Weekly Contest 18
306
Product List
M
Math
304
Maximum product
M+
Math
301
Lucky Number II
H
DFS, BFS
300
Meeting Room IV
H-
DP, Heap
Weekly Contest 19
307
Transform String
H-
Greedy
1735
Super Palindromes
H
Others
Weekly Contest 20
314
The Lost Record
M
Greedy
313
Minimum Insertion
H-
DP
317
Minimum Parentheses Matching
H
Greedy
Weekly Contest 21
312
Bull Cards
H-
DP
319
Square Queue
M
Binary Search
Weekly Contest 22
322
Chess Game
M+
Others
327
Distance Metric
M+
Others
325
Football
H-
DP
324
Regular Expression Search
H+
DP
Weekly Contest 23
330
Increasing Number
H-
DFS
323
Restore Array
M+
DP
328
String Partitionball
H
Greedy
Weekly Contest 24
359
Make Equilateral Triangle
M-
Math
357
Symmetrical Suffix
H-
DP
355
Shuttle In Buildings
H-
DP, Stack
Weekly Contest 26
339
Median II
M-
Math
342
Valley Sequence
M
DP
340
Red and Black Chess
H
DP, Math
Weekly Contest 27
344
Song Time
H-
DP, Greedy
Weekly Contest 28
352
Pretty-Print
M+
String
331
Confusing Number
H-
DFS
349
Developer-Tester Integration
H
DP, PreSum
Weekly Contest 29
295
Intersection
M+
Two Pointers
348
Track Switching
M+
DP
354
Lottery Draw
H-
Binary Search
Weekly Contest 30
962
Condition string
M+
DP
963
The Judges Give Problem
H-
Binary Search
964
Food Set
H-
Greedy
Weekly Contest 31
965
LR string
H-
Greedy
967
Quality Inspection
H-
Two Pointers
Weekly Contest 31
968
Valid Currency Amount
H-
String
561
Array Distance
H
Greedy, DP
1381.Maximum-Line-Coverage (H)
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