# 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

**Pictorial Presentation:**

**Sample Solution-1:**

**Python Code:**

```
def test(m, n):
if m > n or (m == n and m % 2 == 1):
return -1
return n if n % 2 == 0 else n - 1
m = 12
n = 51
print("\nBiggest even number between",m,"and",n)
print(test(m, n))
m = 1
n = 79
print("\nBiggest even number between",m,"and",n)
print(test(m, n))
m = 47
n = 53
print("\nBiggest even number between",m,"and",n)
print(test(m, n))
m = 100
n = 200
print("\nBiggest even number between",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:**

```
def test(p, q):
n = q
while (n & 1) == 1:
n -= 1
if n < p:
return -1
return n
m = 12
n = 51
print("\nBiggest even number between",m,"and",n)
print(test(m, n))
m = 1
n = 79
print("\nBiggest even number between",m,"and",n)
print(test(m, n))
m = 47
n = 53
print("\nBiggest even number between",m,"and",n)
print(test(m, n))
m = 100
n = 200
print("\nBiggest even number between",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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