Question

python program to perform linear search.​

Answer 1

Answer:

Problem: Given an array arr[] of n elements, write a function to search a given element x in arr[].

Examples :

Input : arr[] = {10, 20, 80, 30, 60, 50,

110, 100, 130, 170}

x = 110;

Output : 6

Element x is present at index 6

Input : arr[] = {10, 20, 80, 30, 60, 50,

110, 100, 130, 170}

x = 175;

Output : -1

Element x is not present in arr[].

A simple approach is to do linear search, i.e

Start from the leftmost element of arr[] and one by one compare x with each element of arr[]

If x matches with an element, return the index.

If x doesn’t match with any of elements, return -1.