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Recap
Counting with dictionaries
9. Tuples as dictionary keys
Grouping with dictionaries
Summary

## Instruction

Good job! Now let's see an example of counting with tuples as dictionary keys.

Suppose we have a rectangular board with various flowers growing in various cells:

flowers = [
((0, 3), 'violet'), ((1, 2), 'sunflower'), ((0, 3), 'forget-me-not'),
((3, 4), 'violet'), ((0, 3), 'poppy'), ((1, 2), 'forget-me-not')
]

As you can see, there may be more than one flower in a given cell. We want to know how many flowers there are in each non-empty cell. Here's the code that will find the answer:

flower_counts = {}
for flower in flowers:
position, _ = flower
flower_counts[position] = flower_counts.get(position, 0) + 1
print(flower_counts)

Result:

{(0, 3): 3, (1, 2): 2, (3, 4): 1}

There are three flowers in the cell defined as (0, 3), two flowers in the cell (1, 2), and a single flower in (3, 4). Note that the keys in this example are tuples representing cell locations, but otherwise the entire code is similar to the previous examples.

## Exercise

Two distinct dice (e.g., blue and red) where rolled a few times. Each time we put the result in the tuple as (first_dice, second_dice).

Create a dictionary named results which will store the count of how many times a given combination was thrown.

### Stuck? Here's a hint!

The code will be even simpler than the explanation code because you don't have to unpack anything.