Finding the Maximum Value in an Array

Introduction to Finding the Maximum Value in an Array

This tutorial will guide you through creating a simple algorithm to find the maximum value in an array of integers.

Step 1: Define the Problem and the Approach

We are given an array of integers and we need to find the maximum value in this array. We will use a simple iterative approach to solve this problem.

Step 2: Initialize the Maximum Value

We will initialize the maximum value with the first element of the array. This is because we need to start the comparison from somewhere, and the first element is as good as any.

max_value = array[0]

Step 3: Iterate Through the Array and Update the Maximum Value

We will then iterate through the array, starting from the second element (index 1). For each element, we will check if it is greater than the current maximum value. If it is, we will update the maximum value.

for i in range(1, len(array)):
    if array[i] > max_value:
        max_value = array[i]

Step 4: Return the Maximum Value

Finally, we will return the maximum value.

return max_value

Example Use Case

Here's an example use case:

array = [12, 45, 7, 23, 56, 89, 34]
max_value = array[0]
for i in range(1, len(array)):
    if array[i] > max_value:
        max_value = array[i]
print(max_value)  # Output: 89