CF1867A.green_gold_dog, array and permutation
入门
通过率:0%
时间限制:1.00s
内存限制:256MB
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题目描述
green_gold_dog has an array a of length n, and he wants to find a permutation b of length n such that the number of distinct numbers in the element-wise difference between array a and permutation b is maximized.
A permutation of length n is an array consisting of n distinct integers from 1 to n in any order. For example, [2,3,1,5,4] is a permutation, but [1,2,2] is not a permutation (as 2 appears twice in the array) and [1,3,4] is also not a permutation (as n=3, but 4 appears in the array).
The element-wise difference between two arrays a and b of length n is an array c of length n, where ci = ai−bi (1≤i≤n).
green_gold_dog 有一个长度为 n 的数组 a,他希望找到一个长度为 n 的排列 b,使得数组 a 与排列 b 逐元素相减所得结果中不同数值的个数最大化。
长度为 n 的排列是指由 1 到 n 这 n 个互不相同的整数以任意顺序组成的数组。例如,[2,3,1,5,4] 是一个排列,但 [1,2,2] 不是排列(因为数字 2 在数组中出现了两次),[1,3,4] 也不是排列(因为 n=3,但数组中出现了 4)。
两个长度均为 n 的数组 a 和 b 的逐元素差是一个长度为 n 的数组 c,其中 ci=ai−bi(1≤i≤n)。
输入格式
Each test contains multiple test cases. The first line contains the number of test cases t (1≤t≤4⋅104). The description of the test cases follows.
The first line of each test case contains a single integer n (1≤n≤4⋅104).
The second line of each test case contains n integers a1,a2,…,an (1≤ai≤109).
It is guaranteed that the sum of n over all test cases does not exceed 4⋅104.
每个测试包含多个测试用例。第一行包含测试用例的数量 t(1≤t≤4⋅104)。随后是各测试用例的描述。
每个测试用例的第一行包含一个整数 n(1≤n≤4⋅104)。
每个测试用例的第二行包含 n 个整数 a1,a2,…,an(1≤ai≤109)。
保证所有测试用例的 n 之和不超过 4⋅104。
输出格式
For each test case, output n numbers - a suitable permutation b. If there are multiple solutions, print any of them.
对于每个测试用例,输出 n 个数——一个合适的排列 b。如果存在多个解,输出任意一个即可。
输入输出样例
输入#1
3 1 100000 2 1 1 3 10 3 3
输出#1
1 2 1 1 3 2
说明/提示
In the first set of input data, the element-wise difference of the arrays is [99999]. Here, there is one distinct number, and it is obvious that in an array of length one, there cannot be more than one different element.
In the second set of input data, the element-wise difference of the arrays is [-1, 0]. Here, there are two distinct numbers, and it is obvious that in an array of length two, there cannot be more than two different elements.
In the third set of input data, the element-wise difference of the arrays is [9, 0, 1]. Here, there are three distinct numbers, and it is obvious that in an array of length three, there cannot be more than three different elements.
在第一组输入数据中,两个数组的逐元素差为 [99999]。此处有且仅有一个不同的数,显然,在长度为一的数组中,不可能存在多于一个不同的元素。
在第二组输入数据中,两个数组的逐元素差为 [-1, 0]。此处有两个不同的数,显然,在长度为二的数组中,不可能存在多于两个不同的元素。
在第三组输入数据中,两个数组的逐元素差为 [9, 0, 1]。此处有三个不同的数,显然,在长度为三的数组中,不可能存在多于三个不同的元素。
输入解题思路,AI测评打分。不知道怎么写?