CF1794B.Not Dividing

普及/提高-

通过率:0%

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题目描述

You are given an array of nn positive integers a1,a2,,ana_1, a_2, \ldots, a_n . In one operation, you can choose any number of the array and add 11 to it.

Make at most 2n2n operations so that the array satisfies the following property: ai+1a_{i+1} is not divisible by aia_i , for each i=1,2,,n1i = 1, 2, \ldots, n-1 .

You do not need to minimize the number of operations.

输入格式

Each test contains multiple test cases. The first line contains the number of test cases tt ( 1t1041 \le t \le 10^4 ). The description of the test cases follows.

The first line of each test case contains an integer nn ( 1n1041\le n\le 10^4 ) — the length of the given array.

The second line of each test case contains nn integers a1,a2,,ana_1,a_2,\ldots,a_n ( 1ai1091\le a_i\leq 10^9 ) — the given array.

It is guaranteed that the sum of nn over all test cases does not exceed 51045\cdot 10^4 .

输出格式

For each test case, print the answer on a separate line.

In the only line, print nn integers — the resulting array aa after applying at most 2n2n operations.

We can show that an answer always exists under the given constraints. If there are multiple answers, print any of them.

输入输出样例

  • 输入#1

    3
    4
    2 4 3 6
    3
    1 2 3
    2
    4 2

    输出#1

    4 5 6 7
    3 2 3
    4 2

说明/提示

In the first test case, the array [4,5,6,7][4, 5, 6, 7] can be achieved by applying 22 operations to the first element, 11 operation to the second element, 33 operations to the third element, and 11 operation to the last element. The total number of operations performed is 77 , which is less than the allowed 88 operations in this case.

In the second test case, the array [3,2,3][3, 2, 3] can be achieved by applying two operations to the first element. Another possible resulting array could be [2,3,5][2, 3, 5] , because the total number of operations does not need to be minimum.

In the third test case, not applying any operations results in an array that satisfies the statement's property. Observe that it is not mandatory to make operations.

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