﻿ Python: Combine two dictionary adding values for common keys - w3resource # Python: Combine two dictionary adding values for common keys

## Python dictionary: Exercise-19 with Solution

Write a Python program to combine two dictionary adding values for common keys.

Sample Solution:-

Python Code:

``````from collections import Counter
d1 = {'a': 100, 'b': 200, 'c':300}
d2 = {'a': 300, 'b': 200, 'd':400}
d = Counter(d1) + Counter(d2)
print(d)
```
```

Sample Output:

```Counter({'b': 400, 'd': 400, 'a': 400, 'c': 300})
```

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## Python: Tips of the Day

Free up Memory:

• Manual garbage collection can be performed on timely or event based mechanism.
```import gc
collected_objects = gc.collect()
```