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HomeLeetCode ProblemsCells in a Range on an Excel Sheet
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How to Solve Cells in a Range on an Excel Sheet Problem

Master the Cells in a Range on an Excel Sheet LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.

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Easy#2194
LeetCode Problem

Cells in a Range on an Excel Sheet

A cell (r, c) of an excel sheet is represented as a string "<col><row>" where: You are given a string s in the format "<col1><row1>:<col2><row2>", where <col1> represents the column c1, <row1> represents the row r1, <col2> represents the column c2, and <row2> represents the row r2, such that r1 <= r2 and c1 <= c2. Return the list of cells (x, y) such that r1 <= x <= r2 and c1 <= y <= c2. The cells should be represented as strings in the format mentioned above and be sorted in non-decreasing order first by columns and then by rows.

String

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Problem Breakdown

Understanding the Cells in a Range on an Excel Sheet Problem

Let's break down this LeetCode problem and understand what makes it challenging in interview settings.

Problem Statement

A cell (r, c) of an excel sheet is represented as a string "<col><row>" where: You are given a string s in the format "<col1><row1>:<col2><row2>", where <col1> represents the column c1, <row1> represents the row r1, <col2> represents the column c2, and <row2> represents the row r2, such that r1 <= r2 and c1 <= c2. Return the list of cells (x, y) such that r1 <= x <= r2 and c1 <= y <= c2. The cells should be represented as strings in the format mentioned above and be sorted in non-decreasing order first by columns and then by rows.

EasyProblem #2194
LeetCode

Cells in a Range on an Excel Sheet

Related Topics

String

How Phantom Code Helps

Get real-time assistance for Cells in a Range on an Excel Sheet problems during coding interviews. Phantom Code provides instant solutions and explanations.

Examples

# Example 1

Input
s = "K1:L2"
Output
["K1","K2","L1","L2"]

# Example 2

Input
s = "A1:F1"
Output
["A1","B1","C1","D1","E1","F1"]

Constraints

s.length == 5
'A' <= s[0] <= s[3] <= 'Z'
'1' <= s[1] <= s[4] <= '9'
s consists of uppercase English letters, digits and ':'.

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Solve Cells in a Range on an Excel Sheet — A cell (r, c) of an excel sheet is represented as a string "<col><row>" where: Y...

Here's the optimal approach using String:

def solve(input):
# Optimal O(n) solution
return result

Time: O(n)  |  Space: O(n)

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Platform compatibility and limitations

We work with Zoom, HackerRank, CodeSignal, CoderPad and other web-based platforms. Check the compatibility note and request a browser link if a specific desktop app is unsupported.

Frequently Asked Questions

Common questions about solving Cells in a Range on an Excel Sheet and using Phantom Code during coding interviews.

How does Phantom Code help me solve coding problems like Cells in a Range on an Excel Sheet during interviews?
Phantom Code generates complete solutions instantly with proper complexity analysis, letting you focus on explaining your approach and demonstrating problem-solving skills rather than getting stuck on implementation details during high-pressure situations.
What if the interviewer asks follow-up questions or modifications to problems like Cells in a Range on an Excel Sheet?
Phantom Code adapts in real-time. Screenshot the modified problem or use audio mode to capture the interviewer's follow-up, and get an updated solution within seconds — including edge cases and optimizations.
Can Phantom Code help me communicate my solution for problems like Cells in a Range on an Excel Sheet?
Yes. Phantom Code provides step-by-step approach explanations with 3 progressive thoughts, so you can walk through your solution naturally. It also provides time and space complexity analysis to discuss trade-offs.
How does Phantom Code assist with different programming languages for Cells in a Range on an Excel Sheet type problems?
Phantom Code supports 11 programming languages including Python, Java, C++, JavaScript, TypeScript, Go, Rust, Ruby, Swift, Kotlin, and C#. Set your preferred language and get idiomatic solutions.
What coding mistakes does Phantom Code help me avoid during Cells in a Range on an Excel Sheet interviews?
Phantom Code catches common mistakes like off-by-one errors, missing edge cases, incorrect base conditions, and suboptimal approaches. It provides clean, well-structured code that handles all edge cases.
Is Phantom Code detectable when solving problems like Cells in a Range on an Excel Sheet during live interviews?
No. Phantom Code runs as an invisible desktop overlay that doesn't appear in screen shares, recordings, or proctoring software. It works with Zoom, HackerRank, CodeSignal, CoderPad, and all major platforms.
How does Phantom Code help when I'm struggling with Cells in a Range on an Excel Sheet style questions under pressure?
The AI provides structured guidance: first the approach (what algorithm/data structure to use and why), then the implementation with clean code, and finally complexity analysis. This helps you think clearly even under pressure.
Does Phantom Code work for the coding platforms used in Cells in a Range on an Excel Sheet interviews?
Yes. Phantom Code works with all major coding platforms including LeetCode, HackerRank, CodeSignal, CoderPad, HackerEarth, and any browser-based coding environment.
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