Codeforces Round 531 (Div. 3) |
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You are given an array $$$a$$$ consisting of $$$n$$$ integer numbers.
You have to color this array in $$$k$$$ colors in such a way that:
Obviously, such coloring might be impossible. In this case, print "NO". Otherwise print "YES" and any coloring (i.e. numbers $$$c_1, c_2, \dots c_n$$$, where $$$1 \le c_i \le k$$$ and $$$c_i$$$ is the color of the $$$i$$$-th element of the given array) satisfying the conditions above. If there are multiple answers, you can print any.
The first line of the input contains two integers $$$n$$$ and $$$k$$$ ($$$1 \le k \le n \le 5000$$$) — the length of the array $$$a$$$ and the number of colors, respectively.
The second line of the input contains $$$n$$$ integers $$$a_1, a_2, \dots, a_n$$$ ($$$1 \le a_i \le 5000$$$) — elements of the array $$$a$$$.
If there is no answer, print "NO". Otherwise print "YES" and any coloring (i.e. numbers $$$c_1, c_2, \dots c_n$$$, where $$$1 \le c_i \le k$$$ and $$$c_i$$$ is the color of the $$$i$$$-th element of the given array) satisfying the conditions described in the problem statement. If there are multiple answers, you can print any.
4 2 1 2 2 3
YES 1 1 2 2
5 2 3 2 1 2 3
YES 2 1 1 2 1
5 2 2 1 1 2 1
NO
In the first example the answer $$$2~ 1~ 2~ 1$$$ is also acceptable.
In the second example the answer $$$1~ 1~ 1~ 2~ 2$$$ is also acceptable.
There exist other acceptable answers for both examples.
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