Write a program that calculates and prints out the sum of ev
Write a program that calculates and prints out the sum of even numbers less than k (i.e., 2 + 4 + 6 + … ) for any integer k that the user enters (assuming k > 2)
Solution
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#include <stdio.h>
int main()
 {
 int i, k, sum=0;
 
 /* Reads range from user */
 printf(\"Enter any number: \");
 scanf(\"%d\", &k);
 if(k>2)
 {
 for(i=2; i<=k; i+=2)
 {
 /* Adds each subsequent even numbers to sum */
 sum += i;
 }
 
 printf(\"\ Sum of all even number %d\", sum);
 }
 else
 {
 printf(\"Enter k value K > 2\");
 }
 return 0;
 }
output:
Enter any number: 9   
 Sum of all even number 20

