Question

I need a really good Pseudo/Algorithm code for this C++ program below.

#include <iostream>
#include<fstream>
using namespace std;
int main()
{
   int low, high, i;//integer varaible
   bool flag;//boolean flag
   string a = "Enter two numbers(intervals): ";//string datatype
   ofstream f;//fow writing to file
   f.open("a.txt");
   cout << a;
   cin >> low >> high;
   cout << "Prime numbers between " << low << " and " << high << " are: ";
   do /* do while loop*/
   {
       flag = 0;
       for (i = 2; i <= low / 2; ++i)/* Find prime numbers withing range*/
       {
           if (low % i == 0)
           {
               flag = 1;
               break;
           }
           else {}
       }
       if (flag == 0) {
           cout << low << " ";
           f << low << " ";
       }
       ++low;
   } while (low < high);

   return 0;
}

Answer 1

DECLARE LOW,HIGH
PRINT "ENTER START AND END NUMBERS"
READ LOW
READ HIGH
OPEN FILE("NUMBERS.txt")
LOOP: LOW<HIGH
   LOOP I=2 OT LOW/2
       IF LOW % I==0
           FLAG=FALSE
           BREAK
   END LOOP
  
   IF(FLAG==TRUE)
       PRINT LOW
       WRITE LOW
   LOW=LOW+1
END LOOP

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