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2+ "data" : {
3+ "question" : {
4+ "questionId" : " 3158"
5+ "questionFrontendId" : " 2863"
6+ "categoryTitle" : " Algorithms"
7+ "boundTopicId" : 2451944 ,
8+ "title" : " Maximum Length of Semi-Decreasing Subarrays"
9+ "titleSlug" : " maximum-length-of-semi-decreasing-subarrays"
10+ "content" : null ,
11+ "translatedTitle" : " 最长半递减数组"
12+ "translatedContent" : null ,
13+ "isPaidOnly" : true ,
14+ "difficulty" : " Medium"
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25+ "hints" : [
26+ " First, solve the problem assuming <code>nums</code> contains distinct values."
27+ " Make a new array with each element being the pair <code>(nums[i], i)</code> for every <code>i</code> and call it <code>num_ind</code>."
28+ " Sort <code>num_ind</code> in decreasing order."
29+ " Iterate over <code>num_ind</code> and store a variable that represents the minimum index (i.e. min of <code>num_ind[i].second</code>) that has been iterated until now. Call it <code>min_index</code>"
30+ " Now if you are currently on pair <code>(nums[x], x)</code>, then <code>ans = max(ans, min_index - x)</code>."
31+ " Now try to remove the first assumption."
32+ ],
33+ "solution" : null ,
34+ "status" : null ,
35+ "sampleTestCase" : " [7,6,5,4,3,2,1,6,10,11]"
36+ "metaData" : " {\n \" name\" : \" maxSubarrayLength\" ,\n \" params\" : [\n {\n \" name\" : \" nums\" ,\n \" type\" : \" integer[]\"\n }\n ],\n \" return\" : {\n \" type\" : \" integer\"\n }\n }"
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