American Express vs Zoho Interview Questions
American Express lists 23 LeetCode interview questions while Zoho lists 168. They share 8 problems — 35% of American Express's bank and 5% of Zoho's. Focus on the overlap first, then drill into 15 American Express-only and 160 Zoho-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 8 overlapping problems first. These are the highest-yield questions for candidates interviewing at both American Express and Zoho.
Step 2 — Company-specific depth: Add American Express-specific problems like Minimum Deletions to Make Character Frequencies Unique, Maximum Equal Frequency, Divide an Array Into Subarrays With Minimum Cost II and Zoho-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: American Express skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
8 Shared Questions
High-priority problems to practice for both American Express and Zoho.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Valid Anagram | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
| 3Sum | Medium |
| Rotate Array | Medium |
| Isomorphic Strings | Easy |
| Longest Common Prefix | Easy |
Unique to American Express (15)
Problems in American Express's list that do not appear at Zoho.
Unique to Zoho (160)
Problems in Zoho's list that do not appear at American Express.
| Problem | Difficulty |
|---|---|
| Spiral Matrix | Medium |
| Decode String | Medium |
| Valid Parentheses | Easy |
| Merge Intervals | Medium |
| Longest Palindromic Substring | Medium |
| Climbing Stairs | Easy |
| Group Anagrams | Medium |
| Trapping Rain Water | Hard |
| Compare Version Numbers | Medium |
| Sort Even and Odd Indices Independently | Easy |
| Daily Temperatures | Medium |
| Number of Islands | Medium |
Frequently Asked Questions
How many LeetCode questions do American Express and Zoho share?
American Express and Zoho share 8 LeetCode interview questions. 15 problems appear only in American Express's list and 160 appear only in Zoho's list.
What topics overlap most between American Express and Zoho?
The most common shared topics between American Express and Zoho are Array (5 shared questions), Hash Table (4 shared questions), String (4 shared questions), Sorting (2 shared questions), Two Pointers (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: American Express or Zoho?
American Express has 8 Easy, 12 Medium, and 3 Hard questions. Zoho has 54 Easy, 94 Medium, and 20 Hard questions. American Express has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both American Express and Zoho?
Start with the 8 shared problems since they cover what both companies ask most often. Then add 15 American Express-specific and 20 Zoho-specific questions to round out your prep.