Question bank › Binary Search
Dsa Binary Search Easy

Index of First Occurrence

You are given a sorted array that may contain duplicates and a target value. Your task is to find the index of the first occurrence of the target value in the array using binary search methods. Input Format: - The first line contains an integer n (1 <= n <= 10000). - The second line contains n space-separated integers. - The third line contains the target integer. Output Format: - Print the index of the first occurrence of the target value, or -1 if it does not exist. Example: Input: 7 1 2 2 2 3 4 5 2 Output: 1

Key concepts

binary_searcharraysearching

Practise this out loud — free

Start a mock interview on THIS exact question — a voice AI interviewer opens with it, pushes back like a real onsite, then hands you an instant scorecard.

🎙 Practise this question now
Part of Praxari's verified interview question bank. We show the prompt and concepts to practise with — never a copy-paste solution.