leetcode-problemset/leetcode-cn/originData/[no content]maximum-profitable-triplets-with-increasing-prices-ii.json

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            "questionId": "3204",
            "questionFrontendId": "2921",
            "categoryTitle": "Algorithms",
            "boundTopicId": 2508831,
            "title": "Maximum Profitable Triplets With Increasing Prices II",
            "titleSlug": "maximum-profitable-triplets-with-increasing-prices-ii",
            "content": null,
            "translatedTitle": "具有递增价格的最大利润三元组 II",
            "translatedContent": null,
            "isPaidOnly": true,
            "difficulty": "Hard",
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            "topicTags": [
                {
                    "name": "Binary Indexed Tree",
                    "slug": "binary-indexed-tree",
                    "translatedName": "树状数组",
                    "__typename": "TopicTagNode"
                },
                {
                    "name": "Array",
                    "slug": "array",
                    "translatedName": "数组",
                    "__typename": "TopicTagNode"
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            "hints": [
                "Let's fix the middle chosen item for instance index <code>j</code>.",
                "Let’s define an array <code>max_right</code>, where <code>max_right[j]</code> represents the maximum <code>profit[k]</code> for every index <code>k > j</code> such that <code>prices[k] > prices[j]</code>.",
                "Consider using a Fenwick tree to fill the <code>max_right</code>.",
                "Do the same for items with an index <code>i < j</code> such that <code>prices[i] < prices[j]</code> and find the maximum <code>profit[i]</code> among them. Let's call this array <code>max_left</code>.",
                "Now the profit when an item with the index <code>j</code> is the middle one would be <code>profit[j] + max_right[j] + max_left[j]</code>.",
                "Finally, do the above procedure for all <code>j</code>'s and find the maximum profit among them. That would be the final answer."
            ],
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            "metaData": "{\n  \"name\": \"maxProfit\",\n  \"params\": [\n    {\n      \"name\": \"prices\",\n      \"type\": \"integer[]\"\n    },\n    {\n      \"type\": \"integer[]\",\n      \"name\": \"profits\"\n    }\n  ],\n  \"return\": {\n    \"type\": \"integer\"\n  }\n}",
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