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ADDITION OF TWO NUMBER
```
#include <iostream>
using namespace std;
int main()
{
int a,b=20,c=30;
int *p,*q,*r;
p=&a;
q=&b;
r=&c;
*p=*q+*r;
cout<<"Add="<<*p;
}
/*
### Output ###
Add=50
*/
```
USER INPUT IN POINTER
```
#include <iostream>
using namespace std;
int main()
{
float a,b,c;
float *p,*q,*r;
p=&a;
q=&b;
r=&c;
cout<<"Enter first number\n";
cin>>*q;
cout<<"Enter second number\n";
cin>>*r;
*p=*q=*r;
cout<<"Add="<<*p;
}
/*
### Output ###
Enter first number
65
Enter second number
45
Add=110
*/
```
SUBTRACTION OF TWO NUMBER
```
#include <iostream>
using namespace std;
int main()
{
int a,b=50,c=30;
int *p,*q,*r;
p=&a;
q=&b;
r=&c;
*p=*q-*r;
cout<<"Sub="<<*p;
}
/*
### Output ###
Sub=20
*/
```
MULTIPLICATION OF TWO NUMBER
```
#include <iostream>
using namespace std;
int main()
{
int a,b=20,c=30;
int *p,*q,*r;
p=&a;
q=&b;
r=&c;
*p=*q**r;
cout<<"Multiply="<<*p;
}
/*
### Output ###
Multiply=600
*/
```
DIVISION OF TWO NUMBER
```
#include <iostream>
using namespace std;
int main()
{
float a,b=210,c=30;
float *p,*q,*r;
p=&a;
q=&b;
r=&c;
*p=*q/*r;
cout<<"Div="<<*p;
}
/*
### Output ###
Div=7
*/
```
TABLE OF ONE
```
#include <iostream>
using namespace std;
int main()
{
int i=1;
int *p;
p=&i;
while(*p<=10)
{
cout<<*p<<"\n";
(*p)++;
}
}
/*
### Output ###
1
2
3
4
5
6
7
8
9
10
*/
```
POINTER TO ARRAY
```
#include <iostream>
using namespace std;
int main()
{
int ar[10]={10,20,50,40,60,80,70,25,45,65};
for(int i=0;i<=9;i++)
{
cout<<*(ar+i)<<"\n";
}
}
/*
### Output ###
10
20
50
40
60
80
70
25
45
65
*/
```
POINTER TO FUNCTION
```
#include <iostream>
using namespace std;
void area(int *h,int *w)
{
int ar=*h* *w;
cout<<"Area of rectangle="<<ar;
}
int main()
{
int x,y;
cout<<"Enter height\n";
cin>>x;
cout<<"Enter width\n";
cin>>y;
area(&x,&y);
}
/*
### Output ###
Enter height
12
Enter width
13
Area of rectangle=156
*/
```
POINTER TO STRUCTURE
```
#include <iostream>
using namespace std;
struct Student
{
int rollno;
};
int main()
{
struct Student obj_roll;
obj_roll.rollno=205;
struct Student *r;
r=&obj_roll;
cout<<"Roll number="<<*r;
}
/*
### Output ###
Roll number=205
*/
```
Note:
- Give a STAR if you like this
- FORK to get more update
- Make a PULL REQUEST to countribute