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  • 三、直接插入排序

    1、Java语言实现

    抽象类

    public abstract class Sorter {
        public abstract void sort(int [] array);
    }

    实现类

    public class StraightInsertionSorter extends Sorter {
    
        @Override
        public void sort(int[] array) {
            for (int i = 1; i < array.length; i++) {
                int temp = array[i];
                if (array[i] < array[i - 1]) {
                    int j = i - 1;
                    while (j >= 0 && temp < array[j]) {
                        array[j + 1] = array[j];
                        j--;
                    }
                    array[j + 1] = temp;
                }
            }
    
        }
    
    }

    测试

    public class Test {
        public static void main(String[] args) {
            int[] arr = {94, 12, 34, 76, 26, 9, 0, 37, 55, 76, 37, 5, 68, 83, 90, 37, 12, 65, 76, 49};
            //int[] arr = {5, 2, 0, 1, 3, 4};
            Sorter sorter = new StraightInsertionSorter();
            sorter.sort(arr);
    
            System.out.println(Arrays.toString(arr));
    
        }
    }

    2、python语言实现

    from abc import ABCMeta, abstractmethod


    class Sorter:
    __metaclass__ = ABCMeta

    @abstractmethod
    def sort(self, array):
    pass

    class StraightInsertionSorter(Sorter):
    def sort(self,array):
    i = 1
    length = len(array)
    while i < length:
    temp = array[i]
    if array[i] < array[i - 1]:
    j = i - 1
    while j >= 0 and temp < array[j]:
    array[j + 1] = array[j]
    j -= 1
    array[j + 1] = temp
    i += 1


    if __name__ == '__main__':
    arr = [5, 4, 2, 1, 3, 0, 6]
    print(arr)
    straightInsertionSorter = StraightInsertionSorter()
    straightInsertionSorter.sort(arr)
    print(arr)
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  • 原文地址:https://www.cnblogs.com/beanbag/p/9743803.html
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