def solution(left, right): result = 0 for i in range(left, right+1): if i//i**(1/2) == i**(1/2): result -= i else: result += i return result # 초기 코드 def solution(left, right): result = 0 for i in range(left, right+1): cnt = 0 for j in range(1, int(i**(1/2))+1): if not i%j: if i//j == j: cnt += 1 else: cnt += 2 if cnt%2: result -= i else: result += i return result
