CF721D.Maxim and Array
普及/提高-
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题目描述
Recently Maxim has found an array of n integers, needed by no one. He immediately come up with idea of changing it: he invented positive integer x and decided to add or subtract it from arbitrary array elements. Formally, by applying single operation Maxim chooses integer i ( 1<=i<=n ) and replaces the i -th element of array ai either with ai+x or with ai−x . Please note that the operation may be applied more than once to the same position.
Maxim is a curious minimalis, thus he wants to know what is the minimum value that the product of all array elements (i.e. ) can reach, if Maxim would apply no more than k operations to it. Please help him in that.
输入格式
The first line of the input contains three integers n,k and x ( 1<=n,k<=200000,1<=x<=109 ) — the number of elements in the array, the maximum number of operations and the number invented by Maxim, respectively.
The second line contains n integers a1,a2,...,an () — the elements of the array found by Maxim.
输出格式
Print n integers b1,b2,...,bn in the only line — the array elements after applying no more than k operations to the array. In particular, should stay true for every 1<=i<=n , but the product of all array elements should be minimum possible.
If there are multiple answers, print any of them.
输入输出样例
输入#1
5 3 1 5 4 3 5 2
输出#1
5 4 3 5 -1
输入#2
5 3 1 5 4 3 5 5
输出#2
5 4 0 5 5
输入#3
5 3 1 5 4 4 5 5
输出#3
5 1 4 5 5
输入#4
3 2 7 5 4 2
输出#4
5 11 -5