Atomicity, Normalisation with example,Dbms queries based on project
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Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: Open brackets must be closed by the same type of brackets. Open brackets must be closed in the correct order. Every close bracket has a corresponding open bracket of the same type. Example 1: Input: s = "()" Output: true Example 2: Input: s = "()[]{}" Output: true Example 3: Input: s = "(]" Output: false Example 4: Input: s = "([])" Output: true Given an array of size N filled with numbers from 1 to N-1 in random order. The array has only one repetitive element. The task is to find the repetitive element. Examples: Input: a[] = {1, 3, 2, 3, 4} Output: 3 Explanation: The number 3 is the only repeating element. Input: a[] = {1, 5, 1, 2, 3, 4} Output: 1 Brute Force To Optimization
Reverse single linked list in a single triversal
Given an array of integers find a second lowest integer
Best average score Find whats the bug in the given code.(related to tree)
Java Streams DB queries Arrays
Tell me about the project you have worked on
General Java Questions (object oriented, threads, inheritance, methods)
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