Array Exercises

Example 1

Python program to find the largest number in an array −

import array as arr
a = arr.array('i',[10,5,15,4,6,20,9])print(a)
largest = a[0]for i inrange(1,len(a)):if a[i]>largest:
  largest=a[i]print("Largest number:", largest)</pre>


It will produce the following output −



array('i', [10, 5, 15, 4, 6, 20, 9])
Largest number: 20
Example 2
Python program to store all even numbers from an array in another array −

import array as arr
a = arr.array('i', [10,5,15,4,6,20,9])
print (a)
b = arr.array('i')
for i in range(len(a)):
   if a[i]%2 == 0:
      b.append(a[i])
print ("Even numbers:", b)
It will produce the following output −

array('i', [10, 5, 15, 4, 6, 20, 9])
Even numbers: array('i', [10, 4, 6, 20])
Example 3
Python program to find the average of all numbers in a Python array −

import array as arr
a = arr.array('i', [10,5,15,4,6,20,9])
print (a)
s = 0
for i in range(len(a)):
   s+=a[i]
avg = s/len(a)
print ("Average:", avg)

# Using sum() function
avg = sum(a)/len(a)
print ("Average:", avg)
It will produce the following output −

array('i', [10, 5, 15, 4, 6, 20, 9])
Average: 9.857142857142858
Average: 9.857142857142858
Exercise Programs
Python program find difference between each number in the array and the average of all numbers

Python program to convert a string in an array

Python program to split an array in two and store even numbers in one array and odd numbers in the other.

Python program to perform insertion sort on an array.

Python program to store the Unicode value of each character in the given array.