coding
Medium
Verified Question
#1
1. Dictionary of Sorted Letters
Category: Array coding problem# Question Given a string where letters are sorted in alphabetical order, identify all letters that appear more than twice and record their first and...Input: Array
Output: Computed result
coding
Medium
Verified Question
#2
2. GPS Error Tracking
Category: Algorithm coding problem# Question You are tracking GPS location errors by comparing measured GPS locations against a set of "golden" (reference) locations. Each location...Input: List
Output: Computed result
coding
Medium
Verified Question
#3
3. Reverse Segment of Linked List
Category: Linked list coding problem# Question Given a singly linked list, reverse the second half of the list and then interleave the nodes from the first half and the reversed second...Input: Linked list
Output: Computed result
coding
Medium
Verified Question
#4
4. Unpainted Segments
Category: Binary search coding problem# Question You are given a range [A, B] and a sequence of painting operations. For each operation [L, R], calculate the total length of unpainted...Input: Array of intervals
Output: Computed result
coding
Medium
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#5
5. Running Tests With Failing Pairs
Category: Algorithm coding problem# Question You are given a set of test cases and a black-box function
runTests() that accepts a subset of these test cases and returns whether...Input: ListOutput: Integer
coding
Medium
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#6
6. Connected Crop Allocation
Category: Grid/matrix coding problem# Question You are given an M x N garden grid and a list of crops, each requiring a specific number of plots. The total number of plots required by...Input: 2D grid
Output: Computed result
coding
Medium
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#7
7. [CodeSignal] Maximum Zero-Sum Triplets
Category: Array coding problem# Question You are given an array
A of integers. A triplet is a sequence of three consecutive elements. A triplet is called zero-sum if the...Input: ArrayOutput: Computed result
coding
Medium
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#8
8. Longest Match Tokenizer
Category: Array coding problemYou are given a text string
text and a dictionary array where each element is in the format "<key>:<id>". Here key is a token string and id...Input: ArrayOutput: Computed result
coding
Medium
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#9
9. Daily Branch Pruning
Category: Tree coding problemA file system manages a directory tree. Each day, all leaf directories (those with no child directories) are simultaneously removed. Directories that...Input: Array
Output: Array
coding
Medium
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#10
10. Path Router
Category: Algorithm coding problem# Question Design a
PathRouter class that maps URL-like path patterns to handler names. Patterns may contain wildcard segments (*) that match any...Input: Number(s)Output: Computed result
coding
Medium
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#11
11. Frequency Merge Tree
Category: Tree coding problem# Question Given a string, build a Frequency Merge Tree as follows: 1. Count the frequency of each character in the string. 2. Create a leaf node...Input: String
Output: Computed result
coding
Medium
Verified Question
#12
12. Largest Island Perimeter
Category: Grid/matrix coding problemYou are given an
m x n binary grid where each cell is either '1' (land) or '0' (water). A group of connected land cells (connected horizontally...Input: 2D gridOutput: Computed result
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