折半插入排序

Posted 2021-05-07 brainstorm-yc

代码

#include<iostream>
#define N 9
/*折半插入排序*/
void BinarySort(int A[], int n) { 
    int i,j,low , high ,mid;
    for (i = 2; i <= n; ++i) {
        A[0] = A[i];
        low = 1; high = i - 1;
        while (low<high)
        {
            mid = (low + high) / 2;
            if (A[mid] > A[0])
                high = mid - 1;
            else
                low = mid + 1;
        }
        for (j= i-1; j >= high+1; --j)
            A[j + 1] = A[j];
        A[high + 1] = A[0];
    }
}
 
/*输出数组*/
void OutPrint(int A[]) {
    int i;
    for (i = 1; i < N; i++)
    {
        printf("%d  ", A[i]);
    }
}
int main() {
    int A[N] = { -1,48, 62, 35, 77, 55,14,35,98 };//A[0]"哨兵"
    printf("排序前数组
");
    OutPrint(A);
    BinarySort(A,N-1);
    printf("
排序后数组
");
    OutPrint(A);
    system("pause");
    return 0;
}