Convert bitmap into ASCII characters

Quick Overview

This question evaluates skills in binary-to-text data representation, bitmap rendering, and efficient string and array manipulation for output formatting.

Convert bitmap into ASCII characters

Company: Stripe

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: medium

Interview Round: Onsite

##### Question Given an array/string of 0-1 bits representing a bitmap font, write code to render each character as a grid using '.' for 0 and '#' for 1, and concatenate multiple characters to print whole words efficiently.

Quick Answer: This question evaluates skills in binary-to-text data representation, bitmap rendering, and efficient string and array manipulation for output formatting.

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Stripe
Jul 29, 2025, 8:05 AM
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Question

Given an array/string of 0-1 bits representing a bitmap font, write code to render each character as a grid using '.' for 0 and '#' for 1, and concatenate multiple characters to print whole words efficiently.

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