A sequence of numbers is called arithmetic if it consists of at least two elements, and the difference between every two consecutive elements is the same. More formally, a sequence s is arithmetic if and only if s[i+1] - s[i] == s[1] - s[0] for all valid i.
For example, these are arithmetic sequences:
\n\n\n1, 3, 5, 7, 9\n7, 7, 7, 7\n3, -1, -5, -9\n\n
The following sequence is not arithmetic:
\n\n\n1, 1, 2, 5, 7\n\n
You are given an array of n integers, nums, and two arrays of m integers each, l and r, representing the m range queries, where the ith query is the range [l[i], r[i]]. All the arrays are 0-indexed.
Return a list of boolean elements answer, where answer[i] is true if the subarray nums[l[i]], nums[l[i]+1], ... , nums[r[i]] can be rearranged to form an arithmetic sequence, and false otherwise.
\n
Example 1:
\n\n\nInput: nums =\n\n[4,6,5,9,3,7], l =[0,0,2], r =[2,3,5]\nOutput:[true,false,true]\nExplanation:\nIn the 0th query, the subarray is [4,6,5]. This can be rearranged as [6,5,4], which is an arithmetic sequence.\nIn the 1st query, the subarray is [4,6,5,9]. This cannot be rearranged as an arithmetic sequence.\nIn the 2nd query, the subarray is[5,9,3,7]. Thiscan be rearranged as[3,5,7,9], which is an arithmetic sequence.
Example 2:
\n\n\nInput: nums = [-12,-9,-3,-12,-6,15,20,-25,-20,-15,-10], l = [0,1,6,4,8,7], r = [4,4,9,7,9,10]\nOutput: [false,true,false,false,true,true]\n\n\n
\n
Constraints:
\n\nn == nums.lengthm == l.lengthm == r.length2 <= n <= 5001 <= m <= 5000 <= l[i] < r[i] < n-105 <= nums[i] <= 105Compiled with clang 11 using the latest C++ 20 standard.
Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
Most standard library headers are already included automatically for your convenience.
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Python 2.7.12.
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\\r\\n\\r\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
\\r\\n\\r\\nNote that Python 2.7 will not be maintained past 2020. For the latest Python, please choose Python3 instead.
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\\r\\n\\r\\n1. Adding an item to a hash.\\r\\n
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Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms
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Go 1.21
Support https://godoc.org/github.com/emirpasic/gods@v1.18.1 library.
\"], \"python3\": [\"Python3\", \"Python 3.10.
Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.
\\r\\n\\r\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
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