問題
https://leetcode.com/problems/multiply-strings/
解いた
# @param {String} num1 # @param {String} num2 # @return {String} def multiply(num1, num2) (num1.to_i * num2.to_i).to_s end
https://leetcode.com/problems/multiply-strings/
# @param {String} num1 # @param {String} num2 # @return {String} def multiply(num1, num2) (num1.to_i * num2.to_i).to_s end