Amazon Placement Papers 2025 - Latest OA Questions & Solutions

Company Overview

This page contains Amazon placement papers from 2025 with current year online assessment questions, solutions, and exam patterns. Practice these Amazon placement papers 2025 to understand the latest question patterns.

2025 Updates

The 2025 Amazon OA maintains focus on DSA and system design with enhanced emphasis on optimal solutions and Leadership Principles.

Amazon Online Assessment 2025 Pattern

Section	Questions	Time	Difficulty	Focus Areas
Coding Problem 1	1	45 min	Medium	Arrays, strings, sliding window
Coding Problem 2	1	45 min	Hard	Graphs, trees, dynamic programming
Work Simulation	Multiple scenarios	30 min	Medium	Decision-making, debugging
Behavioral MCQs	10-15	15 min	Medium	Leadership Principles

Total: 2 coding + simulation + MCQs, 90-120 minutes
Platform: HackerRank or Amazon platform
Languages Allowed: Java, C++, Python
Success Rate: ~15-20% cleared OA and advanced to interviews

Amazon Placement Papers 2025 - Actual Questions & Solutions

DSA Coding Problems (2025)

Question 1: Merge Intervals

Q1: Given an array of intervals, merge all overlapping intervals.

Example:

Input: intervals = [[1,3],[2,6],[8,10],[15,18]]
Output: [[1,6],[8,10],[15,18]]

Solution (Java):

public int[][] merge(int[][] intervals) {
    if (intervals.length <= 1) return intervals;

    Arrays.sort(intervals, (a, b) -> Integer.compare(a[0], b[0]));
    List<int[]> merged = new ArrayList<>();
    merged.add(intervals[0]);

    for (int i = 1; i < intervals.length; i++) {
        int[] current = intervals[i];
        int[] last = merged.get(merged.size() - 1);

        if (current[0] <= last[1]) {
            last[1] = Math.max(last[1], current[1]);
        } else {
            merged.add(current);
        }
    }

    return merged.toArray(new int[merged.size()][]);
}

Time Complexity: O(n log n)
Space Complexity: O(n)

Question 2: Word Ladder

Q2: A transformation sequence from word beginWord to word endWord using a dictionary wordList. Find the length of shortest transformation sequence.

Example:

Input: beginWord = "hit", endWord = "cog", wordList = ["hot","dot","dog","lot","log","cog"]
Output: 5

Solution (Java):

public int ladderLength(String beginWord, String endWord, List<String> wordList) {
    Set<String> wordSet = new HashSet<>(wordList);
    if (!wordSet.contains(endWord)) return 0;

    Queue<String> queue = new LinkedList<>();
    queue.offer(beginWord);
    int level = 1;

    while (!queue.isEmpty()) {
        int size = queue.size();
        for (int i = 0; i < size; i++) {
            String word = queue.poll();
            if (word.equals(endWord)) return level;

            char[] chars = word.toCharArray();
            for (int j = 0; j < chars.length; j++) {
                char original = chars[j];
                for (char c = 'a'; c <= 'z'; c++) {
                    if (c == original) continue;
                    chars[j] = c;
                    String newWord = new String(chars);
                    if (wordSet.contains(newWord)) {
                        queue.offer(newWord);
                        wordSet.remove(newWord);
                    }
                }
                chars[j] = original;
            }
        }
        level++;
    }

    return 0;
}

Time Complexity: O(M × N) where M is word length, N is word list size
Space Complexity: O(N)

Key Insights from 2025 Amazon Online Assessment

1. Coding Section is Critical: Must solve at least 1 coding problem correctly to advance
2. DSA Focus: Strong emphasis on graph algorithms, sliding window, bit manipulation, and dynamic programming
3. Leadership Principles: Enhanced focus on all 16 Leadership Principles - prepare multiple STAR stories
4. System Design: Basic system design for SDE-1, advanced for SDE-2+ roles
5. Time Management: 90-120 minutes for complete OA requires good speed and accuracy
6. Work Simulation: Critical section testing decision-making and debugging skills
7. Difficulty Level: Amazon interviews rated 3.1/5 difficulty
8. Success Rate: Only 15-20% cleared OA and advanced to interviews
9. Optimal Solutions: 2025 emphasizes optimal solutions with better time/space complexity

Amazon 2025 Interview Experiences

Based on recent candidate experiences from 2025 Amazon interviews:

2025 Interview Process:

1. Online Assessment (90-120 minutes): 2 coding problems + Work Simulation + Behavioral MCQs
2. Technical Phone Screen (45-60 minutes): Coding problems, algorithm discussions
3. Onsite Interviews (4-5 rounds, 45-60 minutes each):
   • Coding rounds (2-3): Algorithms, data structures, problem-solving
   • System Design round: For SDE-2+ roles
   • Behavioral round: Heavy focus on Leadership Principles with detailed STAR stories

2025 Interview Trends:

• Increased emphasis on optimal solutions with better complexity analysis
• More detailed Leadership Principles questions requiring multiple examples
• Enhanced work simulation scenarios testing real-world decision-making
• Questions about ambiguous requirements and customer obsession

Common 2025 Interview Topics:

• Coding: Graphs, trees, dynamic programming, sliding window, bit manipulation, merge intervals
• System Design: E-commerce systems, logistics, scalable architectures, AWS services
• Behavioral: All 16 Leadership Principles with detailed STAR method stories
• Work Simulation: Complex decision-making scenarios, debugging exercises

2025 Interview Questions Examples:

• “Tell me about a time you made a mistake” (Behavioral - Ownership)
• “Tell me about a time you had to work with ambiguous requirements” (Behavioral - Bias for Action)
• “Two Sum” (Coding)
• “Longest Substring Without Repeating Characters” (Coding)
• “Merge Intervals” (Coding)
• “Word Ladder” (Coding)

Success Tips:

• Strong coding performance is essential - solve problems optimally with better complexity
• Prepare 2-3 detailed STAR stories for each of the 16 Leadership Principles
• Practice work simulation scenarios - complex decision-making and debugging
• Focus on e-commerce and logistics problem-solving
• Be ready to discuss ambiguous requirements and customer obsession in detail
• Practice explaining optimal solutions with complexity analysis

Difficulty Rating: 3.1/5

For detailed interview experiences from 2025, visit Amazon Interview Experience page.

Preparation Tips for Amazon 2025 Pattern

1. Master Coding Fundamentals: Focus on solving 2 coding problems optimally - graphs, DP, sliding window
2. Leadership Principles Mastery: Prepare 2-3 detailed STAR stories for each of the 16 Leadership Principles
3. Practice Previous Year Papers: Solve Amazon OA papers from 2020-2025 to understand evolving patterns
4. Time Management: Practice completing 2 coding problems in 90 minutes, simulation in 30 minutes
5. Work Simulation Practice: Practice complex decision-making scenarios and debugging exercises
6. System Design Basics: Learn e-commerce and logistics system design, AWS services for SDE-1+
7. LeetCode Practice: Solve 200+ LeetCode problems focusing on Amazon tag (medium-hard difficulty)
8. STAR Method Mastery: Master STAR method for detailed behavioral questions
9. Optimal Solutions: Focus on optimal solutions with better time/space complexity analysis
10. Mock Tests: Take timed practice tests to improve speed and accuracy
11. E-commerce Focus: Practice problems related to e-commerce, logistics, and customer experience

Related Resources

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Amazon Interview Experience

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Amazon Leadership Principles

Complete guide to Amazon’s 16 Leadership Principles

View Leadership Principles →

Amazon Preparation Guide

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Amazon Main Page

Complete Amazon placement guide with eligibility, process, and salary

View Main Page →

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Practice 2025 papers to stay updated with latest patterns and prepare effectively!