1063. 计算谱半径(20)--Python

import mathnum = input()num = int(num)max = 0for i in range(num):fir_num, last_num = input().split()fir_num, last_num = int(fir_num), int(last_num)result = fir_num ** 2 + last_num ** 2result = math.sqrt(result)if result > max:max = resultprint("%.2f" % max)