chèn xóa phàn tử của mảng

#include "iostream.h"

#include "conio.h"

void nhap(int a[],int n)

{

for(int i=0;i<n;i++)

{

cout<<"a["<<i<<"]=";

} }

// xuat mang

void xuat(int a[],int n)

{

for(int i=0;i<n;i++)

cout<<a[i]<<" ";

}

// chen phan tu vao mang

void chen(int a[],int n,int vt,int x)

{

if(vt>=0 && vt<=n)

{

for(int i=0;i>vt;i )

n++;

} }

// xoa phan tu

void xoa(int a[],int n,int cx)

{

if(cx>=0 && cx<=n)

{

for(int i=cx;i<n-1;i++)

a[i]=a[i+1];

n=n-1;

}

}

// ham chinh

main ()

cout<<" xin nhap vao so phan tu cua mang: n= "; cin>>n;

nhap(b,n);

cout<<endl<<" mang vua nhap la: "<<endl;

xuat(b,n);

cout<<endl<<"xin nhap so can chen: x= "; cin>>x; cout<<endl<<"xin nhap vi tri can chen: vt= "; cin>>vt;

chen(b,n,vt,x);

cout<<endl<<" mang vua chen xong la: "<<endl;

xuat(b,n);

cout<<endl<<"xin nhap vi tri can xoa: cx= "; cin>>cx;

xoa(b,n,cx);

cout<<endl<<"mang sau khi xoa la: "<<endl;

xuat(b,n);

getch ();

}