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6 years ago
## gcd
### Instructions
Write a program that takes two `strings` representing two strictly positive
integers that fit in an `int`.
The program displays their greatest common divisor followed by a newline('`\n`').
If the number of parameters is different from 2, the program displays a newline.
All arguments tested will be positive `int` values.
### Usage
```console
student@ubuntu:~/student/gcd$ go build
student@ubuntu:~/student/gcd$ ./gcd 42 10 | cat -e
2$
student@ubuntu:~/student/gcd$ ./gcd 42 12 | cat -e
6$
student@ubuntu:~/student/gcd$ ./gcd 14 77 | cat -e
7$
6 years ago
student@ubuntu:~/student/gcd$ ./gcd 17 3 | cat -e
1$
student@ubuntu:~/student/gcd$ ./gcd | cat -e
$
student@ubuntu:~/student/gcd$ ./gcd 50 12 4 | cat -e
$
student@ubuntu:~/student/gcd$
```