Given an array of integers arr and an integer d. In one step you can jump from index i to index:
i + x where: i + x < arr.length and 0 < x <= d.i - x where: i - x >= 0 and 0 < x <= d.In addition, you can only jump from index i to index j if arr[i] > arr[j] and arr[i] > arr[k] for all indices k between i and j (More formally min(i, j) < k < max(i, j)).
You can choose any index of the array and start jumping. Return the maximum number of indices you can visit.
\n\nNotice that you can not jump outside of the array at any time.
\n\n\n
Example 1:
\n![\"\"](\"https://assets.leetcode.com/uploads/2020/01/23/meta-chart.jpeg\")
\n\nInput: arr = [6,4,14,6,8,13,9,7,10,6,12], d = 2\nOutput: 4\nExplanation: You can start at index 10. You can jump 10 --> 8 --> 6 --> 7 as shown.\nNote that if you start at index 6 you can only jump to index 7. You cannot jump to index 5 because 13 > 9. You cannot jump to index 4 because index 5 is between index 4 and 6 and 13 > 9.\nSimilarly You cannot jump from index 3 to index 2 or index 1.\n\n\n
Example 2:
\n\n\nInput: arr = [3,3,3,3,3], d = 3\nOutput: 1\nExplanation: You can start at any index. You always cannot jump to any index.\n\n\n
Example 3:
\n\n\nInput: arr = [7,6,5,4,3,2,1], d = 1\nOutput: 7\nExplanation: Start at index 0. You can visit all the indicies. \n\n\n
\n
Constraints:
\n\n1 <= arr.length <= 10001 <= arr[i] <= 1051 <= d <= arr.lengthCompiled with clang 11 using the latest C++ 17 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.
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.
\\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\\nFor hash table operations, you may use uthash. \\\"uthash.h\\\" is included by default. Below are some examples:
\\r\\n\\r\\n1. Adding an item to a hash.\\r\\n
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\\r\\nvoid delete_user(struct hash_entry *user) {\\r\\n HASH_DEL(users, user); \\r\\n}\\r\\n\\r\\n\"], \"csharp\": [\"C#\", \"\\r\\n\\r\\nYour code is compiled with debug flag enabled (/debug).
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Your code is run with --harmony flag, enabling new ES6 features.
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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 1.17.6.
Support https://godoc.org/github.com/emirpasic/gods library.
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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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