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            "title": "Shift 2D Grid",
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            "content": "<p>Given a 2D <code>grid</code> of size <code>m x n</code>&nbsp;and an integer <code>k</code>. You need to shift the <code>grid</code>&nbsp;<code>k</code> times.</p>\n\n<p>In one shift operation:</p>\n\n<ul>\n\t<li>Element at <code>grid[i][j]</code> moves to <code>grid[i][j + 1]</code>.</li>\n\t<li>Element at <code>grid[i][n - 1]</code> moves to <code>grid[i + 1][0]</code>.</li>\n\t<li>Element at <code>grid[m&nbsp;- 1][n - 1]</code> moves to <code>grid[0][0]</code>.</li>\n</ul>\n\n<p>Return the <em>2D grid</em> after applying shift operation <code>k</code> times.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2019/11/05/e1.png\" style=\"width: 400px; height: 178px;\" />\n<pre>\n<strong>Input:</strong> <code>grid</code> = [[1,2,3],[4,5,6],[7,8,9]], k = 1\n<strong>Output:</strong> [[9,1,2],[3,4,5],[6,7,8]]\n</pre>\n\n<p><strong>Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2019/11/05/e2.png\" style=\"width: 400px; height: 166px;\" />\n<pre>\n<strong>Input:</strong> <code>grid</code> = [[3,8,1,9],[19,7,2,5],[4,6,11,10],[12,0,21,13]], k = 4\n<strong>Output:</strong> [[12,0,21,13],[3,8,1,9],[19,7,2,5],[4,6,11,10]]\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> <code>grid</code> = [[1,2,3],[4,5,6],[7,8,9]], k = 9\n<strong>Output:</strong> [[1,2,3],[4,5,6],[7,8,9]]\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>m ==&nbsp;grid.length</code></li>\n\t<li><code>n ==&nbsp;grid[i].length</code></li>\n\t<li><code>1 &lt;= m &lt;= 50</code></li>\n\t<li><code>1 &lt;= n &lt;= 50</code></li>\n\t<li><code>-1000 &lt;= grid[i][j] &lt;= 1000</code></li>\n\t<li><code>0 &lt;= k &lt;= 100</code></li>\n</ul>\n",
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                    "code": "class Solution {\npublic:\n    vector<vector<int>> shiftGrid(vector<vector<int>>& grid, int k) {\n        \n    }\n};",
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                    "code": "class Solution(object):\n    def shiftGrid(self, grid, k):\n        \"\"\"\n        :type grid: List[List[int]]\n        :type k: int\n        :rtype: List[List[int]]\n        \"\"\"\n        ",
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                    "code": "/**\n * @param {number[][]} grid\n * @param {number} k\n * @return {number[][]}\n */\nvar shiftGrid = function(grid, k) {\n    \n};",
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                    "code": "# @param {Integer[][]} grid\n# @param {Integer} k\n# @return {Integer[][]}\ndef shift_grid(grid, k)\n    \nend",
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                "Simulate step by step. move grid[i][j] to grid[i][j+1]. handle last column of the grid.",
                "Put the matrix row by row to a vector. take k % vector.length and move last k of the vector to the beginning. put the vector to the matrix back the same way."
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