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__Algorithm__
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| /** | |
| * Heap's algorithm | |
| */ | |
| function heapPermutation(arr,size,n){ | |
| var swap = function (index1,index2) { | |
| var temp = arr[index1]; | |
| arr[index1] = arr[index2]; | |
| arr[index2] = temp; | |
| } | |
| if (size === 1){ | |
| console.log(arr); | |
| return; | |
| } | |
| for (let i = 0; i < size; i++){ | |
| heapPermutation(arr, size -1,n); | |
| swap(size % 2 ? 0 : i, size - 1); | |
| } | |
| } | |
| var arr = ['a','b','c','d']; | |
| heapPermutation(arr,arr.length,arr.length); |
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| // 递归 | |
| function gcd(m ,n){ | |
| if(n) return gcd(n,m%n); | |
| return m; | |
| } |
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| /** | |
| * Heap's algorithm | |
| */ | |
| function heapPermutation(arr,size,n){ | |
| var swap = function (index1,index2) { | |
| var temp = arr[index1]; | |
| arr[index1] = arr[index2]; | |
| arr[index2] = temp; | |
| } | |
| if (size === 1){ | |
| console.log(arr); | |
| return; | |
| } | |
| for (let i = 0; i < size; i++){ | |
| heapPermutation(arr, size -1,n); | |
| swap(size % 2 ? 0 : i, size - 1); | |
| } | |
| } | |
| var arr = ['a','b','c','d']; | |
| heapPermutation(arr,arr.length,arr.length); |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // 递归 | |
| function gcd(m ,n){ | |
| if(n) return gcd(n,m%n); | |
| return m; | |
| } |
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