[JavaScript知识库]冒泡排序(Java/C++/JavaScript)

Java实现

public class BubbleSort {
    public static void main(String[] args) {
        int[] arr = {9, 8, 7, 6, 5, 4, 3, 2, 1, 1};
        bubble(arr);
        printArr(arr);
    }

    private static void bubble(int[] arr) {
        boolean flag = true;
        for (int i = 0; i < arr.length - 1 && flag; i++) {
            flag = false;
            for (int j = 0; j < arr.length - 1 - i; j++) {
                if (arr[j] > arr[j + 1]) {
                    swap(arr, j, j + 1);
                    flag = true;
                }
            }
        }
    }

    private static void swap(int[] arr, int i, int j) {
        int temp = arr[i];
        arr[i] = arr[j];
        arr[j] = temp;
    }

    private static void printArr(int[] arr) {
        for (int value :
                arr) {
            System.out.print(value + " ");
        }
    }
}

C++实现

#include <iostream>
using namespace std;

void bubbleSort(int *arr, int length);
void swap(int arr, int i, int j);
void printArr(int *arr, int length);

void swap(int *arr, int i, int j) {
	int temp = arr[i];
	arr[i] = arr[j];
	arr[j] = temp;
}

void bubbleSort(int *arr, int length) {
	bool flag = true;
	for (int i = 0; i < length - 1 && flag; i++) {
		flag = false;
		for (int j = 0; j < length - i - 1; j++) {
			if (arr[j] > arr[j + 1]) {
				swap(arr, j, j + 1);
				flag = true;
			}
		}
	}
}

void printArr(int *arr, int length) {
	for (int i = 0; i < length; i++) {
		cout << arr[i] << " ";
	}
}

int main() {
	int arr[10] = {9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
	int length = sizeof(arr) / sizeof(arr[0]);
	bubbleSort(arr, length);
	printArr(arr, length);
}

JavaScript实现

        function swap(arr,i,j){
            var temp=arr[i];
            arr[i]=arr[j];
            arr[j]=temp;
        }

        function bubbleSort(arr) {
            for(var i=0;i<arr.length-1;i++){
                for(var j=0;j<arr.length-i-1;j++){
                    if(arr[j]>arr[j+1]){
                        swap(arr,j,j+1);
                    }
                }
            }
            return arr;
        }

        var arr = [9,8,7,6,5,4,3,2,1];
        console.log(bubbleSort(arr));