A C program to find sum of even numbers between 1 to N using for loop

//A C program to find sum of even numbers between 1 to N using for loop 

#include<stdio.h>
#include<conio.h>
void main()
{
clrscr();
int i, n, sum=0;
printf("Enter tne number: ");
scanf("%d", &n);
for(i=2; i<=n; i+=2)
{
sum += i;
}
printf("Sum of all even number between 1 to %d = %d", n, sum);
getch();
}

Output:

//A C program to find largest number among 3.

// A C program to perform arithmetic operations using switch case.
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//A C program to print ODD numbers from 1 to N using while loop.