#include

#include

void nhap(int *p,int k,char *s);

void xuat(int *p,int k,char *s);

void chen(int *p,int &k,int vt,int scc);

main()

{

int a[40],n,q,z;

do

{

printf("Nhap vao so phan tu cua mang : ");scanf("%d",&n);

} while(n40);

nhap(a,n,"A");

xuat(a,n,"Mang vua nhap la :

");

printf("

Nhap so can chen : ");scanf("%d",&z);

do

{

printf("Nhap vi tri can chen : ");scanf("%d",&q);

} while(qn);

printf("Nhu vay ta chen so %d vao cac vi tri %d,%d va %d cua mang",z,q,q+1,q+2);

chen(a,n,q,z);

chen(a,n,q+1,z);

chen(a,n,q+2,z);

xuat(a,n,"Mang sau khi chen la :

");

getch();

}

void nhap(int *p,int k,char *s)

{

for(int i=0;i

{

printf("%s[%d] = ",s,i);

scanf("%d",p++);

}

}

void xuat(int *p,int k,char *s)

{

printf("

%s

",s);

for(int i=0;i

printf("%5d",*(p++));

}

void chen(int *p,int &k,int vt,int scc)

{

k++;

for(int i=k+1;i>vt;i--)

*(p+i) = *(p+i-1);

*(p+vt)=scc;

}