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## reduceint
### Instructions
Write a function called `reduceint` that simulates the behaviour of reduce from JavaScript.
The function should have as parameters a function, `f func(int, int) int` and a slice of integers, `arr []int` . You should apply for each element of the slice the arithmetic function, saving it and printing.
### Expected function
```go
func ReduceInt(f func(int, int) int, arr []int) {
}
```
### Usage
Here is a possible program to test your function :
```go
package main
func main() {
mul := func(acc int, cur int) int {
return acc * cur
}
sum := func(acc int, cur int) int {
return acc + cur
}
div := func(acc int, cur int) int {
return acc / cur
}
as := []int{500, 2}
ReduceInt(mul, as)
ReduceInt(sum, as)
ReduceInt(div, as)
}
```
And its output :
```console
student@ubuntu:~/[[ROOT]]/test$ go build
student@ubuntu:~/[[ROOT]]/test$ ./test
1000
502
250
student@ubuntu:~/[[ROOT]]/test$
```
