Programming In C Practical 3
Question 1
Write a program to print square of given number.
square.cpp
C
#include<stdio.h>
#include<conio.h>
void main()
{
clrscr();
int num,sq;
printf("\nEnter a number : ");
scanf("%d",&num);
sq=num*num;
printf("\nSquare of number is: %d",sq);
getch();
}
Output
Question 2
Celsius to Fahrenheit conversion.
numbers.cpp
C
#include<stdio.h>
#include<conio.h>
void main()
{
clrscr();
int celsius;
float far;
printf("\nEnter a temperature in celsius : ");
scanf("%d",&celsius);
far=celsius*(9f/5)+32;
printf("\nTemperature in Fahrenheit is: %f",far);
getch();
}
Output
Question 3
Area calculation of circle with PI value constant and #define function.
numbers.cpp
C
#include<stdio.h>
#include<conio.h>
#define Pi 3.14
void main()
{
clrscr();
int r;
float carea;
printf("\nEnter radius of circle: ");
scanf("%d",&r);
carea=Pi*r*r;
printf("\nArea of circle: %f",carea);
getch();
}
Output
