AtCoder Beginner Contest 069
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Problem Statement
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We have a sequence of length $N$, $a = (a_1, a_2, ..., a_N)$. Each $a_i$ is a positive integer.
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Snuke's objective is to permute the element in $a$ so that the following condition is satisfied:
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- For each
$1 ≤ i ≤ N - 1$, the product of$a_i$and$a_{i + 1}$is a multiple of$4$.
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Determine whether Snuke can achieve his objective.
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Constraints
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$2 ≤ N ≤ 10^5$$a_i$is an integer.$1 ≤ a_i ≤ 10^9$
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Input
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Input is given from Standard Input in the following format:
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N
a_1 a_2 ... a_N
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Output
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If Snuke can achieve his objective, print Yes; otherwise, print No.
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样例
Input #1
3
1 10 100
Output #1
Yes
One solution is $(1, 100, 10)$.
Input #2
4
1 2 3 4
Output #2
No
It is impossible to permute $a$ so that the condition is satisfied.
Input #3
3
1 4 1
Output #3
Yes
The condition is already satisfied initially.
Input #4
2
1 1
Output #4
No
Input #5
6
2 7 1 8 2 8
Output #5
Yes
题目信息
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