https://programmers.co.kr/learn/courses/30/lessons/42584
#파이썬 코드
def solution(prices):
answer = [0] * len(prices)
for i in range(len(prices)):
for j in range(i+1, len(prices)):
a = prices[i]
b = prices[j]
answer[i] += 1
if a > b:
break
return answer