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843 B
843 B
reverserange
Instructions
Write a program which must:
-
Allocate (with
make) a slice of integers. -
Fill it with consecutive values that begins at the second argument and end at the first argument (Including the values of thoses arguments !).
-
That prints the slice.
Errors should be handled.
If the number of arguments is different from 2 the program prints nothing.
Usage :
student@ubuntu:~/reverserange$ go build
student@ubuntu:~/reverserange$ ./reverserange 1 3
[3 2 1]
student@ubuntu:~/reverserange$ ./reverserange -1 2 | cat -e
[2 1 0 -1]$
student@ubuntu:~/reverserange$ ./reverserange 0 0
[0]
student@ubuntu:~/reverserange$ ./reverserange 0 -3
[-3 -2 -1 0]
student@ubuntu:~/reverserange$ ./reverserange 0 nan | cat -e
strconv.Atoi: parsing "nan": invalid syntax$
student@ubuntu:~/reverserange$