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while(j<=k) { m=(j+k)/2; if(x<a[m]) k=m-1; else j=m+1; } for(k=i-1;k>=j;k--) a[k+1]=a[k]; a[j]=x; } }. 习题３．１. #define M 100 int a[M]; void bisort(a, n) int a[], n; { int x,i,j,k,m; for(i=1;i<n;i++) { x=a[i]; j=0;
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while(j<=k) { m=(j+k)/2; if(x<a[m]) k=m-1; else j=m+1; } for(k=i-1;k>=j;k--) a[k+1]=a[k]; a[j]=x; } } 习题３．１ #define M 100 int a[M]; void bisort(a, n) int a[], n; { int x,i,j,k,m; for(i=1;i<n;i++) { x=a[i]; j=0; k=i-1;
typedef struct node{ int data; struct node *link; } NODE; NODE **phead; voidinsertion_l_sort(phead) NODE **phead; {NODE *p,*q,*s,*r; p=*phead; q=p->link; while(q!=NULL) { s=*phead; while(s!=q&& s->data<=q->data) { r=s; s=s->link; } if(s==q) p=q; else { p->link=q->link; q->link=s; if(s==*phead) *phead=q; else r->link=q; } q=p->link; } } 习题３．２
void selection_l_sort(phead) NODE **phead; { NODE *p,*q,*r,*s; r=(NODE *)malloc (sizeof(NODE)); r->link=*phead; *phead=r; while(r->link!=NULL) { q=s=r->link; while(q->link!=NULL) { if(q->link->data<s->data) { p=q; s=q->link; } q=q->link; } p->link=s->link; s->link=r->link; r->link=s; r=r->link; } p=*phead; *phead=p->link; free(p); } 习题３．３
void double_bubble_sort(a,n) int a[]; int n; { int i,j,t; n--; while(n>0) { j=0; for(i=0;i<n;i++) if(a[i]>a[i+1]) { t=a[i]; a[i]=a[i+1]; a[i+1]=t; j=i; } n=j; for(i=n-1;i>=0 &&a[i]<a[i+1];i--) n--; for(i=n-1;i>=0;i--) if(a[i]>a[i+1]) { t=a[i]; a[i]=a[i+1]; a[i+1]=t; } } } 习题３．４
void merge_l(p,q,r,ph,ppt) NODE *p,*q,*r,*ph,**ppt; { NODE *pb, *pq; pb=ph; pq=q; while(p!=q&&pq!=r) { if(p->data<=pq->data) { pb->link=p; p=p->link; } else { pb->link=pq; pq=pq->link; } pb=pb->link; } while(p!=q) { pb->link=p; p=p->link; pb=pb->link; } while(pq!=r) { pb->link=pq; pq=pq->link; pb=pb->link; } *ppt=pb; } 习题３.５上
int mpass_l(pa,pb,k) NODE **pa,**pb; int k; { NODE *p,*q,*r,*ph,*pt; int i,flag=0; ph=(NODE *)malloc (sizeof(NODE)); ph->link=*pb; *pb=ph; q=p=*pa; while(p!=NULL) { for(i=0;q!=NULL&&i<k;i++) q=q->link; if(flag==0&&q==NULL) flag=9999; r=q; for(i=0;r!=NULL&&i<k;i++) r=r->link; merge(p,q,r,ph,&pt); q=p=r; ph=pt; flag++; } ph=*pb; *pb=ph->link; free(ph); if(flag>9000) return 1; else return 0; } 习题３．５中
void merge_l_sort(pa) NODE **pa; { NODE *b; int k, flag=1; k=1; while(flag) { if(mpass_l(pa,&b,k)) flag=0; k*=2; if(mpass_l(&b,pa,k)) flag=0; k*=2; } } 习题３．５下
#define MAXN 100 void merge(a,b,h,m,n) int a[ ],b[ ]; int h,m,n; { int i,j,k; i=h; j=m+1; k=h; while(i<=m&&j<=n) if(a[i]<=a[j]) b[k++]=a[i++]; else b[k++]=a[j++]; while(i<=m) b[k++]=a[i++]; while(j<=n) b[k++]=a[j++]; } void count(a,n,c) int a[ ],c[ ]; int n; { int x,j,k; c[0]=0; j=1; for(k=0;k<n;k++) if(a[k]>a[k+1]) c[j++]=k; c[j]=n-1; } 习题３．６上
void mpass(a,b,c,n) int a[ ],b[ ],c[ ]; int n; { int i,j,k k=1; j=0; i=1; while(c[i]!=n-1) { merge(a,b,j,c[i],c[i+1]); j=c[i+1]+1; c[k++]=c[i+1]; if(c[i+1]==n-1) break; i=i+2; } if(c[i]==n-1) { for(;j<n;j++) b[j]=a[j]; c[k]=n-1; } } 习题３．６中
void merge_sort(a,n) int a[ ]; int n; { int b[MAXN],c[MAXN]; count(a,n,c); while(c[1]!=n-1) { mpass(a,b,c,n); mpass(b,a,c,n); } } 习题３．６下
#define M 100 void quick(a,n) int a[ ]; int n; { int b[M][2]; int i,j,ii,jj,top,t; top=0; b[top][0]=0; b[top++][1]=n; while(k!=0) { i=ii=b[--top][0]; j=jj=b[top][1]; t=a[i]; while(i!=j) { while(i<j&&a[j]>t) j--; if(i<j) a[i++]=a[j]; while(i<j&&a[i]<=t) i++; if(i<j) a[j--]=a[i]; } a[i]=t; if(ii<i-1) { b[top][0]=ii; b[top++][1]=i-1; } if(i+1<jj) { b[top][0]=i+1; b[top++][1]=jj; } } } 习题３．７
12,2,16,30,8,28,4,10,20,6,18 2,12,16,30,8,28,4,10,20,6,18 2,12,16,30,8,28,4,10,20,6,18 2,12,16,30,8,28,4,10,20,6,18 2,8,12,16,30,28,4,10,20,6,18 2,8,12,16,28,30,4,10,20,6,18 2,4,8,12,16,28,30,10,20,6,18 2,4,8,10,12,16,28,30,20,6,18 2,4,8,10,12,16,20,28,30,6,18 2,4,6,8,10,12,16,20,28,30,18 2,4,6,8,10,12,16,18,20,28,30 3.8 (1)插入排序
