﻿ Python: Find maximum difference pair in a given list - w3resource

# Python: Find maximum difference pair in a given list

## Python Itertools: Exercise-43 with Solution

Write a Python program to find the maximum difference between pairs in a given list.

Sample Solution:

Python Code:

``````from itertools import combinations
from heapq import nlargest

def test(lst):
result = nlargest(1, combinations(lst, 2),
key=lambda sub: abs(sub[0] - sub[1]))
return result

marks = [32,14,90,10,22,42,31]
print("\nOriginal list:")
print(marks)
print("\nFind maximum difference pair of the said list:")
print(test(marks))
```
```

Sample Output:

```Original list:
[32, 14, 90, 10, 22, 42, 31]

Find maximum difference pair of the said list:
[(90, 10)]
```

Python Code Editor:

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## Python: Tips of the Day

Inverts a dictionary with non-unique hashable values:

Example:

```def tips_collect_dictionary(obj):
inv_obj = {}
for key, value in obj.items():
inv_obj.setdefault(value, list()).append(key)
return inv_obj
ages = {
"Owen": 25,
"Jhon": 25,
"Pepe": 15,
}
print(tips_collect_dictionary(ages))
```

Output:

```{25: ['Owen', 'Jhon'], 15: ['Pepe']}
```

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