[Baekjoon/Python3] 14720번 우유 축제

[Baekjoon/Python3] 14720번 우유 축제

 

www.acmicpc.net/problem/14720

14720번: 우유 축제

 

n = int(input())
store = list(map(int, input().split()))
cnt = 0
for i in range(n):
    if store[i] == cnt % 3:
        cnt += 1
print(cnt)

 

n = int(input())
store = list(map(int, input().split()))
i, cnt = 0, 0
for s in store:
    if s == i:
        cnt += 1
        if i == 2:
            i = 0
        else:
            i += 1
print(cnt)