More simple C programs
Program 1.1 Area of a circle Here is an elementary C
program that reads in the radius of a circle, calculates the area and
then writes the calculated result.
#include <stdio.h> /* Library file access */
/* program to calculate the area of a circle */ /* Title (Comment) */
main() /* Function heading */
{
float radius, area; /*Variable declarations */
printf("Radius=?"); /* Output statement(prompt) */
scanf("%f", &radius); /* Input statement */
area=3.14159*radius*radius; /* Assignment statement */
printf("Area=%f",area); /* Output statement */
}
Program 1.2 Print a few numbers Here is a program to illustrate a simple loop
#include <stdio.h>
/* print a few numbers, to illustrate a simple loop */
main()
{
int i;
for(i = 0; i < 10; i = i + 1) /* Looping statement */
printf("i is %d\n", i);
return 0;
}
Program 1.3: Program to add two numbers
#include <stdio.h>
main()
{
int i,j,k; // Defining variables
i = 6; // Assign values
j = 8;
k = i + j;
printf("sum of two numbers is %d \n",k); // Printing results
}
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