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"content": "<p>You have <code>k</code> lists of sorted integers in <strong>non-decreasing order</strong>. Find the <b>smallest</b> range that includes at least one number from each of the <code>k</code> lists.</p>\n\n<p>We define the range <code>[a, b]</code> is smaller than range <code>[c, d]</code> if <code>b - a < d - c</code> <strong>or</strong> <code>a < c</code> if <code>b - a == d - c</code>.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [[4,10,15,24,26],[0,9,12,20],[5,18,22,30]]\n<strong>Output:</strong> [20,24]\n<strong>Explanation: </strong>\nList 1: [4, 10, 15, 24,26], 24 is in range [20,24].\nList 2: [0, 9, 12, 20], 20 is in range [20,24].\nList 3: [5, 18, 22, 30], 22 is in range [20,24].\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [[1,2,3],[1,2,3],[1,2,3]]\n<strong>Output:</strong> [1,1]\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>nums.length == k</code></li>\n\t<li><code>1 <= k <= 3500</code></li>\n\t<li><code>1 <= nums[i].length <= 50</code></li>\n\t<li><code>-10<sup>5</sup> <= nums[i][j] <= 10<sup>5</sup></code></li>\n\t<li><code>nums[i]</code> is sorted in <strong>non-decreasing</strong> order.</li>\n</ul>\n",
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