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visa codesignal 17/11/2025 - failed
November 17, 2025 • 3 reads
Summary
I recently took a Codesignal assessment for Visa and unfortunately did not pass. I encountered two specific coding problems, and I'm sharing them to help others prepare.
Full Experience
I just completed the Codesignal assessment for Visa and failed. I want to share the exact questions I received to help others who are preparing for this assessment. I hope this helps you.
Interview Questions (2)
Q1
Count Triples with Matching Ends
Data Structures & AlgorithmsEasy
Given a string text, count the number of substrings of length 3 where the first and last characters are the same.
Examples:
text = ""->0text = "abc"->1(for "abc")text = "abcxccc"->2(for "abc" and "ccc")
Q2
Max Digital Root of Numbers in a List
Data Structures & AlgorithmsEasy
Given a list of numbers readings, for each number, repeatedly add its digits until the result is a single digit (its digital root). Finally, return the maximum digital root found among all numbers in the list.
Example:
readings = [123, 456, 789, 101]- 123 -> 1+2+3 = 6
- 456 -> 4+5+6 = 15
- 789 -> 7+8+9 = 24
- 101 -> 1+0+1 = 2
- 6 (stays 6)
- 15 -> 1+5 = 6
- 24 -> 2+4 = 6
- 2 (stays 2)
[6, 6, 6, 2]. The maximum is 6.