一.直接插入排序
#include <stdio.h>#define MaxSize 20typedef int KeyType; typedef char InfoType[10];typedef struct { KeyType key; InfoType data; } RecType; void InsertSort(RecType R[],int n) { int i,j; RecType tmp; for (i=1; i<n; i++) { tmp=R[i]; j=i-1; while (j>=0 && tmp.key<R[j].key) { R[j+1]=R[j]; j--; } R[j+1]=tmp; }}int main(){ int i,n=10; RecType R[MaxSize]; KeyType a[]= {9,8,7,6,5,4,3,2,1,0}; for (i=0; i<n; i++) R[i].key=a[i]; printf("排序前:"); for (i=0; i<n; i++) printf("%d ",R[i].key); printf("\n"); InsertSort(R,n); printf("排序后:"); for (i=0; i<n; i++) printf("%d ",R[i].key); printf("\n"); return 0;}
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二.显示直接插入排序过程
#include <stdio.h>#define MaxSize 20typedef int KeyType; typedef char InfoType[10];typedef struct { KeyType key; InfoType data; } RecType; void InsertSort(RecType R[],int n) { int i,j,k; RecType tmp; for (i=1; i<n; i++) { tmp=R[i]; j=i-1; while (j>=0 && tmp.key<R[j].key) { R[j+1]=R[j]; j--; } R[j+1]=tmp; printf("i=%d: ",i); for (k=0; k<n; k++) printf("%d ",R[k].key); printf("\n"); }}int main(){ int i,n=10; RecType R[MaxSize]; KeyType a[]= {9,8,7,6,5,4,3,2,1,0}; for (i=0; i<n; i++) R[i].key=a[i]; printf("排序前:"); for (i=0; i<n; i++) printf("%d ",R[i].key); printf("\n"); InsertSort(R,n); printf("排序后:"); for (i=0; i<n; i++) printf("%d ",R[i].key); printf("\n"); return 0;}
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三.折半插入排序
#include <stdio.h>#define MaxSize 20typedef int KeyType; typedef char InfoType[10];typedef struct { KeyType key; InfoType data; } RecType; void InsertSort1(RecType R[],int n) { int i,j,low,high,mid; RecType tmp; for (i=1; i<n; i++) { tmp=R[i]; low=0; high=i-1; while (low<=high) { mid=(low+high)/2; if (tmp.key<R[mid].key) high=mid-1; else low=mid+1; } for (j=i-1; j>=high+1; j--) R[j+1]=R[j]; R[high+1]=tmp; }}int main(){ int i,n=10; RecType R[MaxSize]; KeyType a[]= {9,8,7,6,5,4,3,2,1,0}; for (i=0; i<n; i++) R[i].key=a[i]; printf("排序前:"); for (i=0; i<n; i++) printf("%d ",R[i].key); printf("\n"); InsertSort1(R,n); printf("排序后:"); for (i=0; i<n; i++) printf("%d ",R[i].key); printf("\n"); return 0;}