Create Program to print Prime numbers in given range using c

#include <stdio.h>

int main() {
   int low, high, i, flag;
   printf("Enter two numbers(intervals):");
   scanf("%d %d", &low, &high);
   printf("Prime numbers between %d and %d are: ", low, high);
   while (low < high) {
      flag = 0;
      if (low <= 1) {
         ++low;
         continue;
      }
      for (i = 2; i <= low / 2; ++i)
        {
         if (low % i == 0) {
            flag = 1;
            break;
         }
      }
      if (flag == 0)
         printf("%d ", low);
      ++low;
   }
   return 0;
}