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// quicksort
// 快速排序算法 Javascript
(function(){
var list = [12,5,80,27,20,99,7,1,55,28,77];
function quicksort(arr, i, j){
if(i<j){
var index = quicksortProcess(arr, i, j);
quicksort(arr, i, index);
quicksort(arr, index+1, j)
}
}
function quicksortProcess(arr, i, j){
var index = arr[i];
while (i < j){
while(i < j && arr[j] >= index){
j-=1;
}
while(i < j && arr[j] < index){
arr[i] = arr[j];
i+=1
arr[j] = arr[i];
}
}
arr[i] = index;
return i;
}
quicksort(list, 0, list.length - 1);
console.log( list );
})();
// Python语法
def (arr, i, j):
if i<j:
index = quicksortProcess(arr, i, j)
quicksort(arr, i, index)
quicksort(arr, index+1, j)
def quicksortProcess(arr, i, j):
index = arr[i]
while i<j:
while i<j and arr[j] >= index:
j-=1
while i<j and arr[j] < index:
arr[i] = arr[j]
i+=1
arr[j] = arr[i]
arr[i] = index
return i
list = [4,7,98,12,56,8,34,177,234,88,65,32,77,1]
quicksort(list, 0 ,len(list)-1 )
print( list )
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