快速排序
时间:2011-04-12 来源:流浪啊
var quickSort = function(arr) { if (arr.length <= 1) { return arr; } var pivotIndex = Math.floor(arr.length / 2); var pivot = arr.splice(pivotIndex, 1)[0]; var left = []; var right = []; for (var i = 0; i < arr.length; i++){ if (arr[i] < pivot) { left.push(arr[i]); } else { right.push(arr[i]); } } return quickSort(left).concat([pivot], quickSort(right)); };
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