PROGRAMMING:Declaration and creation of one dimensional array

Declare and create an int type one-dimensional array, store five integers: 1, 2, 3, 4, 5, and output the average value of five integers.
###Input format:
nothing
###Output format:
three
###Input example:
```in
```
###Output example:
The corresponding output is given here. For example:
```out
three
```







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