ProjectEuler Problem-10 Solution

Problem :

The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.
Find the sum of all the primes below two million.

Solution :

#include<stdio.h>
#include<math.h>

int main()
{
    long long int num,i,j,sum=0;
 printf("Enter any number:");
 scanf("%lld",&num);
 for(j=2;j<num;j++)
 {
  for(i=2;i<=sqrt(j)&&j%i!=0;i++);
  if(i>sqrt(j))
  sum=sum+j;
    }
 printf("Sum=%lld",sum);
  
return 0;  
}