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Card Range Obfuscation Problem - Stripe Interview Question | Codinzhub

Payment card numbers are composed of eight to nineteen digits, the leading

…

Given an array of values, determine the required result under the following conditions.

Input: [4, 8, 15, 16, 23, 42]

Output: 3

Constraints: 1 ≤ n ≤ 10⁵

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Card Range Obfuscation Problem

MediumMed•1,183 views

Payment card numbers are composed of eight to nineteen digits, the leading

…

Given an array of values, determine the required result under the following conditions.

Input: [4, 8, 15, 16, 23, 42]

Output: 3

Constraints: 1 ≤ n ≤ 10⁵

Unlock the full statement, examples, constraints, and solution guidance.

MediumMed•1,183 views

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Last updated Sep 2026