# Python: Biggest even number between two numbers inclusive

## Python Programming Puzzles: Exercise-58 with Solution

Write a Python program to find the biggest even number between two numbers inclusive.

Input: m = 12 n = 51 Output: 50 Input: m = 1 n = 79 Output: 78 Input: m = 47 n = 53 Output: 52 Input: m = 100 n = 200 Output: 200

**Visual Presentation:**

**Sample Solution-1:**

**Python Code:**

```
# Define a function named 'test' that takes two parameters, m and n
def test(m, n):
# Check if m is greater than n or if both m and n are odd
if m > n or (m == n and m % 2 == 1):
# Return -1 if the condition is met
return -1
# Return n if n is even, otherwise return n - 1
return n if n % 2 == 0 else n - 1
# Set values for m and n
m = 12
n = 51
# Print a message indicating the range of numbers
print("\nBiggest even number between", m, "and", n)
# Print the result of the test function applied to the given values of m and n
print(test(m, n))
# Set new values for m and n
m = 1
n = 79
# Print a message indicating the range of numbers
print("\nBiggest even number between", m, "and", n)
# Print the result of the test function applied to the new values of m and n
print(test(m, n))
# Set another set of values for m and n
m = 47
n = 53
# Print a message indicating the range of numbers
print("\nBiggest even number between", m, "and", n)
# Print the result of the test function applied to the new values of m and n
print(test(m, n))
# Set additional values for m and n
m = 100
n = 200
# Print a message indicating the range of numbers
print("\nBiggest even number between", m, "and", n)
# Print the result of the test function applied to the additional values of m and n
print(test(m, n))
```

Sample Output:

Biggest even number between 12 and 51 50 Biggest even number between 1 and 79 78 Biggest even number between 47 and 53 52 Biggest even number between 100 and 200 200

**Flowchart:**

**Sample Solution-2:**

**Python Code:**

```
# Define a function named 'test' that takes two parameters, p and q
def test(p, q):
# Initialize a variable 'n' with the value of 'q'
n = q
# Continue looping while the least significant bit of 'n' is 1 (n is odd)
while (n & 1) == 1:
# Decrement 'n' by 1
n -= 1
# Check if 'n' has become less than 'p'
if n < p:
# Return -1 if the condition is met
return -1
# Return the final value of 'n'
return n
# Set values for m and n
m = 12
n = 51
# Print a message indicating the range of numbers
print("\nBiggest even number between", m, "and", n)
# Print the result of the test function applied to the given values of m and n
print(test(m, n))
# Set new values for m and n
m = 1
n = 79
# Print a message indicating the range of numbers
print("\nBiggest even number between", m, "and", n)
# Print the result of the test function applied to the new values of m and n
print(test(m, n))
# Set another set of values for m and n
m = 47
n = 53
# Print a message indicating the range of numbers
print("\nBiggest even number between", m, "and", n)
# Print the result of the test function applied to the new values of m and n
print(test(m, n))
# Set additional values for m and n
m = 100
n = 200
# Print a message indicating the range of numbers
print("\nBiggest even number between", m, "and", n)
# Print the result of the test function applied to the additional values of m and n
print(test(m, n))
```

Sample Output:

Biggest even number between 12 and 51 50 Biggest even number between 1 and 79 78 Biggest even number between 47 and 53 52 Biggest even number between 100 and 200 200

**Flowchart:**

**Python Code Editor :**

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