We have a secret array. You don’t know this array and you have to restore it. However, you know some facts about this array:
The array consists of n distinct positive (greater than 0) integers.
The array contains two elements x and y (these elements are known for you) such that x<y.
If you sort the array in increasing order (such that a1<a2<…<an), differences between all adjacent (consecutive) elements are equal (i.e. a2−a1=a3−a2=…=an−an−1).
It can be proven that such an array always exists under the constraints given below.
Among all possible arrays that satisfy the given conditions, we ask you to restore one which has the minimum possible maximum element. In other words, you have to minimize max(a1,a2,…,an).
You have to answer t independent test cases.
Input
The first line of the input contains one integer t (1≤t≤100) — the number of test cases. Then t test cases follow.
The only line of the test case contains three integers n, x and y (2≤n≤50; 1≤x<y≤50) — the length of the array and two elements that are present in the array, respectively.
Output
For each test case, print the answer: n integers a1,a2,…,an (1≤ai≤109), where ai is the i-th element of the required array. If there are several answers, you can print any (it also means that the order of elements doesn’t matter).
It can be proven that such an array always exists under the given constraints.
Example
Input
5
2 1 49
5 20 50
6 20 50
5 3 8
9 13 22
Output
1 49
20 40 30 50 10
26 32 20 38 44 50
8 23 18 13 3
1 10 13 4 19 22 25 16 7
翻译:
1 | 我们有一个秘密的阵法。你不知道这个数组,你必须恢复它。但是,您知道有关此阵列的一些事实: |
第一次:按照问题顺序模拟:
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结果:案例手动都过,测试案例1超时,案例2错误
修改思路:因为每两个之间是等差,所以不需要存起来,只需要直到公差即可,因为题目不要求答案呢顺序,所有每次输出当前值+公差。那么问题就只有哪个是第一个了。因为最小值必须大于0,而且要包含给出的两个值(a,b,a<b),所以,最小值要么是给出值的第一个a(a<b),要么小于a,所以根据公差一将a一直减去公差(直到满足个数,或者<0)
所以改良ac代码:
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