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g0301_0400.s0312_burst_balloons.readme.md Maven / Gradle / Ivy

312\. Burst Balloons

Hard

You are given `n` balloons, indexed from `0` to `n - 1`. Each balloon is painted with a number on it represented by an array `nums`. You are asked to burst all the balloons.

If you burst the ith balloon, you will get `nums[i - 1] * nums[i] * nums[i + 1]` coins. If `i - 1` or `i + 1` goes out of bounds of the array, then treat it as if there is a balloon with a `1` painted on it.

Return _the maximum coins you can collect by bursting the balloons wisely_.

**Example 1:**

**Input:** nums = [3,1,5,8]

**Output:** 167

**Explanation:**

    nums = [3,1,5,8] --> [3,5,8] --> [3,8] --> [8] --> []
    coins = 3*1*5 + 3*5*8 + 1*3*8 + 1*8*1 = 167

**Example 2:**

**Input:** nums = [1,5]

**Output:** 10 

**Constraints:**

*   `n == nums.length`
*   `1 <= n <= 500`
*   `0 <= nums[i] <= 100`