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g3101_3200.s3115_maximum_prime_difference.readme.md Maven / Gradle / Ivy

3115\. Maximum Prime Difference

Medium

You are given an integer array `nums`.

Return an integer that is the **maximum** distance between the **indices** of two (not necessarily different) prime numbers in `nums`_._

**Example 1:**

**Input:** nums = [4,2,9,5,3]

**Output:** 3

**Explanation:** `nums[1]`, `nums[3]`, and `nums[4]` are prime. So the answer is `|4 - 1| = 3`.

**Example 2:**

**Input:** nums = [4,8,2,8]

**Output:** 0

**Explanation:** `nums[2]` is prime. Because there is just one prime number, the answer is `|2 - 2| = 0`.

**Constraints:**

*   1 <= nums.length <= 3 * 105
*   `1 <= nums[i] <= 100`
*   The input is generated such that the number of prime numbers in the `nums` is at least one.