Write a program to generate prime numbers within a given range. [using for loop]

#include < stdio.h>
#include < stdlib.h>
void main()
{
int num1, num2, i, j, flag, temp;
printf("Enter the value of num1 and num2 \n");
scanf("%d %d", &num1, &num2);
printf("Prime numbers are \n");
temp = num1;
if (num1 % 2 == 0)
{
num1++;
}
for (i = num1; i < = num2; i = i + 2)
{
flag = 0;
for (j = 2; j < = i / 2; j++)
{
if ((i % j) == 0)
{
flag = 1;
break;
}
}
if (flag == 0)
{
printf("%d\n", i);
}
}
}