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566. Reshape the Matrix

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	`1`	`+/**`
	`2`	`+ * 566. Reshape the Matrix`
	`3`	`+ * https://leetcode.com/problems/reshape-the-matrix/`
	`4`	`+ * @param {number[][]} nums`
	`5`	`+ * @param {number} r`
	`6`	`+ * @param {number} c`
	`7`	`+ * @return {number[][]}`
	`8`	`+ */`
	`9`	`+var matrixReshape = function (nums, r, c) {`
	`10`	`+ if (r * c !== nums.length * nums[0].length) {`
	`11`	`+ return nums;`
	`12`	`+ }`
	`13`	`+ let res = Array(r);`
	`14`	`+ let index = 0;`
	`15`	`+ for (let i = 0; i < r; i++) {`
	`16`	`+ res[i] = Array(c).fill(0);`
	`17`	`+ for (let j = 0; j < c; j++) {`
	`18`	`+ index = i * c + j;`
	`19`	`+ res[i][j] = nums[Math.trunc(index / nums[0].length)][index % nums[0].length]`
	`20`	`+ }`
	`21`	`+ }`
	`22`	`+ return res;`
	`23`	`+};`

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