<p>You are given a <strong>0-indexed</strong> integer array <code>nums</code>, where <code>nums[i]</code> represents the score of the <code>i<sup>th</sup></code> student. You are also given an integer <code>k</code>.</p> <p>Pick the scores of any <code>k</code> students from the array so that the <strong>difference</strong> between the <strong>highest</strong> and the <strong>lowest</strong> of the <code>k</code> scores is <strong>minimized</strong>.</p> <p>Return <em>the <strong>minimum</strong> possible difference</em>.</p> <p> </p> <p><strong class="example">Example 1:</strong></p> <pre> <strong>Input:</strong> nums = [90], k = 1 <strong>Output:</strong> 0 <strong>Explanation:</strong> There is one way to pick score(s) of one student: - [<strong><u>90</u></strong>]. The difference between the highest and lowest score is 90 - 90 = 0. The minimum possible difference is 0. </pre> <p><strong class="example">Example 2:</strong></p> <pre> <strong>Input:</strong> nums = [9,4,1,7], k = 2 <strong>Output:</strong> 2 <strong>Explanation:</strong> There are six ways to pick score(s) of two students: - [<strong><u>9</u></strong>,<strong><u>4</u></strong>,1,7]. The difference between the highest and lowest score is 9 - 4 = 5. - [<strong><u>9</u></strong>,4,<strong><u>1</u></strong>,7]. The difference between the highest and lowest score is 9 - 1 = 8. - [<strong><u>9</u></strong>,4,1,<strong><u>7</u></strong>]. The difference between the highest and lowest score is 9 - 7 = 2. - [9,<strong><u>4</u></strong>,<strong><u>1</u></strong>,7]. The difference between the highest and lowest score is 4 - 1 = 3. - [9,<strong><u>4</u></strong>,1,<strong><u>7</u></strong>]. The difference between the highest and lowest score is 7 - 4 = 3. - [9,4,<strong><u>1</u></strong>,<strong><u>7</u></strong>]. The difference between the highest and lowest score is 7 - 1 = 6. The minimum possible difference is 2.</pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= k <= nums.length <= 1000</code></li> <li><code>0 <= nums[i] <= 10<sup>5</sup></code></li> </ul>