Dashboard Questions Topics Companies Sheets

Oracle Interview Questions

136 coding problems asked in Oracle interviews. Prepare for your technical interview with real questions.

136

Problems

Easy

Medium

Hard

Difficulty

All136 Easy26 Medium84 Hard26

Title	Solve	Difficulty	Companies	Topics
394. Decode String	Solve	Medium	Adobe+16	Recursion Stack+1
430. Flatten a Multilevel Doubly Linked List	Solve	Medium	Amazon+3	Depth-First Search Doubly-Linked List+1
435. Non-overlapping Intervals	Solve	Medium	Amazon+7	Array Dynamic Programming+2
438. Find All Anagrams in a String	Solve	Medium	Adobe+9	Hash Table Sliding Window+1
445. Add Two Numbers II	Solve	Medium	Accenture+49	Linked List Math+1
450. Delete Node in a BST	Solve	Medium	Amazon+4	Binary Search Tree Binary Tree+1
516. Longest Palindromic Subsequence	Solve	Medium	Amazon+5	Dynamic Programming String
518. Coin Change II	Solve	Medium	Accenture+68	Array Dynamic Programming
560. Subarray Sum Equals K	Solve	Medium	Adobe+15	Array Hash Table+1
567. Permutation in String	Solve	Medium	Amazon+7	Hash Table Sliding Window+2
658. Find K Closest Elements	Solve	Medium	Amazon+6	Array Binary Search+4
695. Max Area of Island	Solve	Medium	Amazon+8	Array Breadth-First Search+3
725. Split Linked List in Parts	Solve	Medium	Amazon+3	Linked List
735. Asteroid Collision	Solve	Medium	Amazon+15	Array Simulation+1
767. Reorganize String	Solve	Medium	Adobe+17	Counting Greedy+4
848. Shifting Letters	Solve	Medium	Oracle	Array Prefix Sum+1
981. Time Based Key-Value Store	Solve	Medium	Amazon+5	Binary Search Design+2
1010. Pairs of Songs With Total Durations Divisible by 60	Solve	Medium	Amazon+7	Array Counting+1
1011. Capacity To Ship Packages Within D Days	Solve	Medium	Adobe+16	Array Binary Search
1081. Smallest Subsequence of Distinct Characters	Solve	Medium	Amazon+4	Greedy Monotonic Stack+2
1091. Shortest Path in Binary Matrix	Solve	Medium	Adobe+20	Array Breadth-First Search+1
1161. Maximum Level Sum of a Binary Tree	Solve	Medium	Adobe+12	Binary Tree Breadth-First Search+2
1268. Search Suggestions System	Solve	Medium	Adobe+5	Array Binary Search+4
1328. Break a Palindrome	Solve	Medium	Expedia+10	Greedy String
1344. Angle Between Hands of a Clock	Solve	Medium	Amazon+3	Math
1410. HTML Entity Parser	Solve	Medium	Oracle	Hash Table String
1472. Design Browser History	Solve	Medium	Amazon+3	Array Data Stream+4
1584. Min Cost to Connect All Points	Solve	Medium	Amazon+4	Array Graph+2
1740. Find Distance in a Binary Tree	Solve	Medium	Amazon+5	Binary Tree Breadth-First Search+3
2192. All Ancestors of a Node in a Directed Acyclic Graph	Solve	Medium	Google+2	Breadth-First Search Depth-First Search+2
2439. Minimize Maximum of Array	Solve	Medium	Amazon+2	Array Binary Search+3
2466. Count Ways To Build Good Strings	Solve	Medium	Citadel+1	Dynamic Programming
2539. Count the Number of Good Subsequences	Solve	Medium	Oracle+1	Combinatorics Counting+3
2580. Count Ways to Group Overlapping Ranges	Solve	Medium	Oracle	Array Sorting