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Teaper
小学数学题 ```javascript /** * @param {number[]} rec1 * @param {number[]} rec2 * @return {boolean} */ var isRectangleOverlap = function(rec1, rec2) { // 找到两个矩形的中点 let px1 = (rec1[0] + rec1[2])/2; let...
``` /** * @param {character[][]} grid * @return {number} */ var numIslands = function(grid) { let dao = 0; let m = grid.length let n = grid[0].length; for (let i...