插入排序
插入排序 是一种对原有序列排序的方法,逐步使原序列的有序序列增长
折半插入排序 是在寻找 当前元素的位置时采取了折半查找的方法
#include"stdio.h"
#include"stdlib.h"
typedef struct SqList{
int * elem;
int length;
int MaxSize;
}SqList;
void CreatList(SqList &L)
{
L.elem=(int *)malloc(100 * sizeof(int));
if(!L.elem)
exit(0);
else
{
L.length = 0;
L.MaxSize = 100;
int i, n;
printf("please shu ru yuan su ge shu:\n");
scanf("%d", &n);
L.length = n;
printf("please shu ru yuan su:\n");
for(i=1;i<=L.length;i++)
scanf("%d", &L.elem[i]);
}
}
void print(SqList L)
{
int i;
for(i=1;i<=L.length;i++)
printf("%d ", L.elem[i]);
printf("\n");
}
void InsertSort(SqList &L) //对顺序表L直接插入排序
{
int i, j;
for(i=2;i<=L.length;++i)
if(L.elem[i] < L.elem[i-1])
{
L.elem[0]=L.elem[i];
for(j=i-1;L.elem[j]>L.elem[0];--j)
L.elem[j+1] = L.elem[j];
L.elem[j+1] = L.elem[0];
}
}
void BInsertSort(SqList &L) //折半插入排序
{
int i, j, low, high, mid;
for(i=2;i<=L.length;++i)
{
L.elem[0] = L.elem[i];
low = 1;
high = i-1;
while(low <= high)
{
mid = (low+high)/2;
if(L.elem[0] < L.elem[mid])
high = mid-1;
else
low = mid+1;
}
for(j=i-1;j>=high+1;--j)
L.elem[j+1] = L.elem[j];
L.elem[high+1] = L.elem[0];
}
}
int main()
{
SqList L;
CreatList(L);
print(L);
//InsertSort(L);
BInsertSort(L);
print(L);
return 0;
}
posted on 2012-01-03 11:31 java课程设计例子 阅读(232) 评论(0) 编辑 收藏 举报