The mini calculator in C

$1.$ Addition: $./$minicalc $+$ int$1$ int$2$

Output: the sum of the integers.

$2.$ Greatest common divisor:$2./$minicalc gcd N$...$

Arbitrarily$-$many integer arguments may be supplied and your program should output the GCD of them all.

Implement this using a loop.

$3.$ Square root: $./$minicalc sqrt double$1$

Output: the square root of the number. Calculate this using the standard library function sqrt$.$

$4.$ Anagram: $./$minicalc anagram string $1$ string $2$

Output: true if the strings re anagrams, else false.