5th proram

Theory

“A for loop is a programming language statement which allows code to be repeatedly executed. A for loop is classified as an iteration statement.”
For loop is almost universally held to be the most commonly used loop. This is extremely useful when you have to execute a given set of instruction a limited number of times with little or no changes. This loop will start with giving a variable a predefined value and then keep on executing the body part of the loop as long as the given condition is true. Every time the loop is executed, the variable gets a new value.

Task:

1. Write a program that prints the following using For loop.

*
* *
* * *
* * * *
* * * * *
* * * *
* * *
* *
*

Coding
#include<stdio.h>
void main(void)
{
int i,j;
for(i=1;i<5;i++)
{
for(j=1;j<=i;j++)
printf("*\n");
}
for(i=4;i>=1;i--)
{
for(j=1;j<=i;j++)
printf("*\n");
}

}

2. Write a program using one dimensional array that calculates the sum and average of the five input values from the keyboard and prints the calculated sum and average.

Coding:

#include<stdio.h>
void main(void)
{
int a,i,j,s=0;
for(i=0;i<5;i++)
{
printf("ENTER NUMNBER");
scanf("%d",&j);
s=s+j;
}
printf("sum is %d",s);
a=s/5;
printf("average is =%d\n",a);
}