Program for multiplication table

Given a number n, we need to print its table. 

Examples :

Input: 5
Output:
5 * 1 = 5
5 * 2 = 10
5 * 3 = 15
5 * 4 = 20
5 * 5 = 25
5 * 6 = 30
5 * 7 = 35
5 * 8 = 40
5 * 9 = 45
5 * 10 = 50

Input: 2
Output:
2 * 1 = 2
2 * 2 = 4
2 * 3 = 6
2 * 4 = 8
2 * 5 = 10
2 * 6 = 12
2 * 7 = 14
2 * 8 = 16
2 * 9 = 18
2 * 10 = 20

Iterative Approach

The iterative approach for printing a multiplication table involves using a loop to calculate and print the product of a given number and the numbers in range from 1 to 10. In this method, you begin with the number whose table you want to print and use a loop to multiply it with increasing values.

Output :

5 * 1 = 5
5 * 2 = 10
5 * 3 = 15
5 * 4 = 20
5 * 5 = 25
5 * 6 = 30
5 * 7 = 35
5 * 8 = 40
5 * 9 = 45
5 * 10 = 50

Time Complexity - O(1)
Space Complexity - O(1)

Illustration

Step by step execution of loop for the multiplication table of n = 5.

We have n = 5, and the loop will iterate from i = 1 to i = 10.

First Iteration (i = 1):

• The loop multiplies n = 5 by i = 1.
• Result: 5 * 1 = 5.
• Output: 5 * 1 = 5.

Second Iteration (i = 2):

• The loop multiplies n = 5 by i = 2.
• Result: 5 * 2 = 10.
• Output: 5 * 2 = 10.

Third Iteration (i = 3):

• The loop multiplies n = 5 by i = 3.
• Result: 5 * 3 = 15.
• Output: 5 * 3 = 15.

....
....

Tenth Iteration (i = 10):

• The loop multiplies n = 5 by i = 10.
• Result: 5 * 10 = 50.
• Output: 5 * 10 = 50.

Recursive Approach

In this method, we pass i as an additional parameter with initial value as 1. We print n * i and then recursively call for i+1. We stop the recursion when i becomes 11 as we need to print only 10 multiples of given number and i.

5 * 1 = 5
5 * 2 = 10
5 * 3 = 15
5 * 4 = 20
5 * 5 = 25
5 * 6 = 30
5 * 7 = 35
5 * 8 = 40
5 * 9 = 45
5 * 10 = 50

Time Complexity - O(1)
Space Complexity - O(1)