# Python: Find the missing number in a given array of numbers between 10 and 20

## Python: Array Exercise-24 with Solution

Write a Python program to find the missing number in a given array of numbers between 10 and 20.

**Sample Solution-1:**

**Python Code:**

```
import array as arr
def test(nums):
return sum(range(10, 21)) - sum(list(nums))
array_num = arr.array('i', [10, 11, 12, 13, 14, 16, 17, 18, 19, 20])
print("Original array:")
for i in range(len(array_num)):
print(array_num[i], end=' ')
print("\nMissing number in the said array (10-20): ",test(array_num))
array_num = arr.array('i', [10, 11, 12, 13, 14, 15, 16, 17, 18, 19])
print("\nOriginal array:")
for i in range(len(array_num)):
print(array_num[i], end=' ')
print("\nMissing number in the said array (10-20): ",test(array_num))
```

Sample Output:

Original array: 10 11 12 13 14 16 17 18 19 20 Missing number in the said array (10-20): 15 Original array: 10 11 12 13 14 15 16 17 18 19 Missing number in the said array (10-20): 20

**Flowchart: **

**Sample Solution-2:**

**Python Code:**

```
import array as arr
def test(nums):
return 165 - sum(list(nums))
array_num = arr.array('i', [10, 11, 12, 13, 14, 16, 17, 18, 19, 20])
print("Original array:")
for i in range(len(array_num)):
print(array_num[i], end=' ')
print("\nMissing number in the said array (10-20): ",test(array_num))
array_num = arr.array('i', [10, 11, 12, 13, 14, 15, 16, 17, 18, 19])
print("\nOriginal array:")
for i in range(len(array_num)):
print(array_num[i], end=' ')
print("\nMissing number in the said array (10-20): ",test(array_num))
```

Sample Output:

Original array: 10 11 12 13 14 16 17 18 19 20 Missing number in the said array (10-20): 15 Original array: 10 11 12 13 14 15 16 17 18 19 Missing number in the said array (10-20): 20

**Flowchart: **

**Python Code Editor:**

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