C++ Programming Examples

c++ programming examples

      Recommended link :Basic C++ Programs

      1.       Write a C++ program that takes two numbers and display the product of two numbers

#include<stdio.h>

#include<conio.h>

void main ()

{

int a, b, sum;

printf (“enter two numbers”);

scanf (“%d”, &a);

scanf (“%d”, &b);

sum= a*b;

printf (“product of given number is =%d”, sum);

getch ();

}

      2.       Write a C++ program that takes three numbers to calculate and print the average of the numbers

#include<stdio.h>

#include<conio.h>

void main ()

{

int a, b, c, sum;

float avg;

printf (“enter three numbers”);

scanf (“%d”, &a);

scanf (“%d”, &b);

scanf (“%d”, &c);

sum= a+ b+ c;

avg= sum/3.0;

printf (“Average of given number is =%f”, avg);

getch ();

}

     3.       Write a C++ program to compute the area of a hexagon.

              Area of a hexagon = (6 * s^2)/(4*tan(π/6))

              where s is the length of a side

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main ()

{

int s, b;

float c, area;

printf (“enter the length of hexagon”);

scanf (“%d”, &s);

b= 6* pow (s, 2);

c= 4* tan (3.14/6);

area = b/c;

printf (“Area of hexagon is =%f”, area);

getch ();

}

     4.       Write a C++ program to compute the area of a polygon.

       Area of a polygon = (n*s^2)/(4*tan(π/n))

       where n is n-sided polygon and s is the length of a side

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main ()

{

int s, b, n;

float c, area;

printf (“ Enter the length of polygon”);

scanf (“%d”, &s);

printf (“ Enter the side of polygon”);

b= n* pow(s, 2);

c= 4* tan (3.14/n);

area = b/c;

printf (“Area of polygon is =%f”, area);

getch ();

}

      5.       Write a C++ program to compute the distance between two points on the surface of earth.

Distance between the two points [ (x1,y1) & (x2,y2)]

               d = radius * arccos(sin(x1) * sin(x2) + cos(x1) * cos(x2) * cos(y1 - y2))

               Radius of the earth r = 6371.01 Kilometers

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main ()

{

int x1, x2, y1, y2;

float radius = 6371010, a, b, c, d;

printf (“Enter the given points sequentially  \nx1 = ”);

scanf (“%d”, & x1);

printf (“\n x2=”);

scanf (“%d”, & x2);

printf (“\n y1=”);

scanf (“%d”, & y1);

printf (“\n y2=”);

scanf (“%d”, & y2);

a = sin(x1) + cos(x1) * cos (x2) * cos(y1 – y2);

b = acos (a);

c = b * 180/3.14;

d = radius * c;

printf (“ distance of given points is  =%f”, d);

getch ();

}

      6.       Write a C++ program that accepts an integer (n) and computes the value of n+ nn+ nnn

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main ()

{

int  n, a;

printf (“ Enter number ”);

scanf (“%d”, &n);

b= n* pow(s, 2);

a= n + pow(n,2)+ pow(n,3);

printf (“desired result is =%d”, a);

getch ();

}

c programming examples