두 수의 차 https://school.programmers.co.kr/learn/courses/30/lessons/120803 class Solution { fun solution(num1: Int, num2: Int): Int { return num1 - num2 } } 두 수의 곱 https://school.programmers.co.kr/learn/courses/30/lessons/120804 class Solution { fun solution(num1: Int, num2: Int): Int { return num1 * num2 } } 몫 구하기 https://school.programmers.co.kr/learn/courses/30/lessons/120805 class Solution { fu..