AtCoder Japan Open -予選-(AtCoder Regular Contest 186)
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Problem Statement
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For two $N \times N$ matrices $A$ and $B$ whose elements are $0$ or $1$, we say that $A$ and $B$ are similar if they satisfy the following conditions:
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- The sums of corresponding rows are equal. That is,
$A_{i,1} + \dots + A_{i,N} = B_{i,1} + \dots + B_{i,N}$for any$i=1,\dots,N$. - The sums of corresponding columns are equal. That is,
$A_{1,j} + \dots + A_{N,j} = B_{1,j} + \dots + B_{N,j}$for any$j=1,\dots,N$.
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Furthermore, for an $N \times N$ matrix $A$ whose elements are $0$ or $1$, and integers $i,j$ ($1 \leq i,j \leq N$), we say that the element at row $i$ column $j$ is fixed if $A_{i,j} = B_{i,j}$ holds for any matrix $B$ that is similar to $A$.
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Answer the following $Q$ queries:
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- The
$i$-th query: If there exists an$N \times N$matrix whose elements are$0$or$1$such that exactly$K_i$elements are fixed, outputYes; otherwise, outputNo.
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Constraints
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$2 \le N \le 30$$1 \le Q \le N^2+1$$0 \le K_i \le N^2$$K_i \ne K_j (1 \le i < j \le Q)$- All inputs are integers
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Input
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The input is given from Standard Input in the following format:
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N Q
K_1
K_2
\vdots
K_Q
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Output
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Output $Q$ lines. For the $i$-th line $(1 \le i \le Q)$, output the answer for the $i$-th query.
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样例
Input #1
3 3
0
9
7
Output #1
Yes
Yes
No
Query 1: For example, the following matrix $X$ has exactly $0$ fixed elements.
This is because all the following matrices, obtained by cyclically shifting the columns, are similar to $X$, and each element can be either $0$ or $1$.
Query 2: For example, the following matrix $X$ has exactly $9$ fixed elements.
This is because no other matrix similar to $X$ exists, and all elements are fixed.
Query 3: No matrix exists with exactly $7$ fixed elements.
Input #2
29 6
186
681
18
108
123
321
Output #2
No
Yes
No
Yes
No
Yes
题目信息
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