Write a program that print all prime numbers from m to n (m>n).

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

void main()
{
    int m,n,k=1;
    clrscr();
    cout<<"Enter 1st number, m = ";
    cin>>m;
    cout<<"Enter 2nd number, n = ";
    cin>>n;

    if(m>=n)
       cout<<"m must be less than n.";
    else
    {
    for(int i=m;i<=n;i++)
       {
          if(i<2)
             int p=0;
          else
             p=1;
          int t=sqrt(i);

          for(int j=2;j<=t;j++)
             if(i%j==0)
             {
                p=0;
            break;
             }
          if(p==1)
          {
             cout<<"\n"<<k<<" Prime number = "<<i;
             k++;
          }
       }
    }

    getch();
}

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Copy & paste this code in your TC & run, then you will get output.......
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