C语言合并排序

合并排序C语言实现

#include <stdio.h>

#define LENA 10
#define LENB 5

void MergeSort( int * array1 , int len1 , int * array2 , int len2 )
{
	int i = 0 , j = 0 , k = 0;
	int data[LENA+LENB] = { 0 };

	while ( k < LENA+LENB )
	{
		if ( array1[i] < array2[j] )
		{
			if ( i < len1 )
			{
				data[k] = array1[i];
				i++;
			}
			else
			{
				data[k] = array2[j];
				j++;
			}
		}
		else
		{
			if ( j < len2 )
			{
				data[k] = array2[j];
				j++;
			}
			else
			{
				data[k] = array1[i];
				i++;
			}
		}
		k++;
	}

	for ( int a = 0 ; a < k ; a++ )
	{
		printf( "%d " , data[a] );
	}
	printf( "\n" );
}

void main()
{
	int a[] = { 0 , 1 , 2 , 3 , 5 , 9 , 11 , 100 , 1000 , 9999 };
	int b[] = { 9 , 11 , 100 , 300 , 1000 };
	MergeSort( a , LENA , b , LENB );
}