Python program to print the Inverted heart pattern

Difficulty Level : Expert
Last Updated : 31 Dec, 2020

Let us see how to print an inverted heart pattern in Python.

Example:

Input: 11
Output:

          *
         ***
        *****
       *******
      *********
     ***********
    *************
   ***************
  *****************
 *******************
*********************
 *********  ********
  *******    ******
   *****      **** 
   
Input: 15
Output:
              *
             ***
            *****
           *******
          *********
         ***********
        *************
       ***************
      *****************
     *******************
    *********************
   ***********************
  *************************
 ***************************
*****************************
 *************  ************
  ***********    **********
   *********      ********
    *******        ******

Approach:

Determine the size of the heart.
Print an inverted triangle with size number of rows.
Print the rest of the heart in 4 segments inside another loop.
Print the white space right-triangle at the beginning.
Print the first trapezium with stars.
Print the white space triangle.
Print the second trapezium with stars.

Python3

# determining the size of the heart 
size = 15
  
# printing the inverted triangle 
for a in range(0, size): 
    for b in range(a, size): 
        print(" ", end = "") 
    for b in range(1, (a * 2)):  
        print("*", end = "")  
    print("") 
  
# printing rest of the heart 
for a in range(size, int(size / 2) - 1 , -2): 
  
    # printing the white space right-triangle 
    for b in range(1, size - a, 2):   
        print(" ", end = "") 
  
    # printing the first trapezium 
    for b in range(1, a + 1):  
        print("*", end = "") 
  
    # printing the white space triangle 
    for b in range(1, (size - a) + 1):  
        print(" ", end = "") 
  
    # printing the seconf trapezium 
    for b in range(1, a):  
        print("*", end = "") 
  
    # new line 
    print("")

Output:

              *
             ***
            *****
           *******
          *********
         ***********
        *************
       ***************
      *****************
     *******************
    *********************
   ***********************
  *************************
 ***************************
*****************************
 *************  ************
  ***********    **********
   *********      ********
    *******        ******

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