5) Write a program to find sum of numbers between 1 to 100 .

source file name: While3.C

#include<stdio.h>

 int  main()

{

int n;

int sum=0;

//clrscr();

n=1;       // start

while(n<=100)      // end

{

sum=sum+n;

n++;      // interval

}

printf("\n sum:  %d ",sum);    // body

//getch();

return 0;

}

output:

sum: 5050