用于插入排序的Java程序

插入排序是一种简单的排序算法,其工作原理与我们对手中的扑克牌进行排序的方式相同。

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JAVA

// Java program for implementation of Insertion Sort
class InsertionSort
{
/*Function to sort array using insertion sort*/
void sort( int arr[])
{
int n = arr.length;
for ( int i= 1 ; i<n; ++i)
{
int key = arr[i];
int j = i- 1 ;
/* Move elements of arr[0..i-1], that are
greater than key, to one position ahead
of their current position */
while (j>= 0 && arr[j] > key)
{
arr[j+ 1 ] = arr[j];
j = j- 1 ;
}
arr[j+ 1 ] = key;
}
}
/* A utility function to print array of size n*/
static void printArray( int arr[])
{
int n = arr.length;
for ( int i= 0 ; i<n; ++i)
System.out.print(arr[i] + " " );
System.out.println();
}
// Driver method
public static void main(String args[])
{
int arr[] = { 12 , 11 , 13 , 5 , 6 };
InsertionSort ob = new InsertionSort();
ob.sort(arr);
printArray(arr);
}
} /* This code is contributed by Rajat Mishra. */


请参阅完整的文章 插入排序 更多细节!

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