LRU page replacement algo.c

 #include<stdio.h>
 #include<conio.h>
 main()
 {
             int i, j , k, min, rs[25], m[10], count[10], flag[25], n, f, pf=0, next=1;
           clrscr(); 
            printf("Enter the length of reference string -- ");
            scanf("%d",&n);
             printf("Enter the reference string -- ");
                  for(i=0;i<n;i++) 
                      {
                         scanf("%d",&rs[i]); 
                         flag[i]=0; 
                    }
            printf("Enter the number of frames -- ");
           scanf("%d",&f);
                   for(i=0;i<f;i++) 
                     {
                           count[i]=0;  m[i]=-1; 
               }
                   printf("\nThe Page Replacement process is -- \n"); 
                   for(i=0;i<n;i++) 
                       {
                            for(j=0;j<f;j++)
                              {
                                     if(m[j]==rs[i]) 
                                    { 
                                      flag[i]=1;
                                    count[j]=next;
                                      next++;
                               }
                        }
                      if(flag[i]==0) 
                         {
                                if(i<f)
                                   {
                                          m[i]=rs[i];
                                          count[i]=next;
                                          next++;
                                   }
                            else 
                                       {
                                             min=0; 
                               for(j=1;j<f;j++) 
                            if(count[min] > count[j]) 
                              min=j; 
                              m[min]=rs[i];
                              count[min]=next; next++;
                                }
                                   pf++;
                          }
                        for(j=0;j<f;j++) 
                            printf("%d\t", m[j]);
                            if(flag[i]==0)
                                printf("PF No. -- %d" , pf);
                                  printf("\n");
                      }
                      printf("\nThe number of page faults using LRU are %d",pf); 
         getch();
 }