#include "defs.h"

# define PSP  100000
# define  MP    500
# define  MB     80

char inf1[80],inf2[80],outf[80];
/* No defaults for filenames */
short perm[PSP],*pptr1[MP+1],*pptr2[MP+1],base[MB],mp=MP,mb=MB;
int psp=PSP;
FILE *ip,*op;

int 
main (int argc, char *argv[])
{ short npt1,npt2,i,l,m,n,np,np1,np2,*p,*q,mxp,*perm2,nb1,nb2,nb;  char err;
  if (argc!=4) {err=1; goto error;} else err=0;
  strcpy(inf1,argv[1]); strcpy(inf2,argv[2]); strcpy(outf,argv[3]);
  if ((ip=fopen(inf1,"r"))==0)
  { fprintf(stderr,"Cannot open %s.\n",inf1); exit(1); }
  fscanf(ip,"%hd%hd%hd%hd",&npt1,&np1,&m,&n); snl();
  if (m!=0) snl(); if (n!=0) snl();
  mxp=psp/npt1-1; if (mxp>mp) mxp=mp;
  if (np1>mxp)
  { fprintf(stderr,"np1 too big. Increase PSP and/or MP.\n"); exit(1);}
  for (i=0;i<=np1;i++) pptr1[i]=perm-1+i*npt1;
  p=pptr1[0];
  for (i=1;i<=npt1;i++) p[i]=i;
  for (i=1;i<=np1;i++)
  { p=pptr1[i];
    for (n=1;n<=npt1;n++) fscanf(ip,"%hd",p+n); snl();
  }
  fclose(ip);
  psp-=(npt1*(np1+1)); perm2=perm+npt1*(np1+1);
  if ((ip=fopen(inf2,"r"))==0)
  { fprintf(stderr,"Cannot open %s.\n",inf2); exit(1); }
  fscanf(ip,"%hd%hd%hd%hd",&npt2,&np2,&m,&n); snl();
  if (m!=0) snl(); if (n!=0) snl();
  mxp=psp/npt2-1; if (mxp>mp) mxp=mp;
  if (np2>mxp)
  { fprintf(stderr,"np2 too big. Increase PSP and/or MP.\n"); exit(1);}
  for (i=0;i<=np2;i++) pptr2[i]=perm2-1+i*npt2;
  p=pptr2[0];
  for (i=1;i<=npt2;i++) p[i]=i;
  for (i=1;i<=np2;i++)
  { p=pptr2[i];
    for (n=1;n<=npt2;n++) fscanf(ip,"%hd",p+n); snl();
  }
  fclose(ip);
/* Two groups are now input */
  op=fopen(outf,"w");
  printf("Do you wish to output any base points (y/n)?  ");
  if (getchar()=='y')
  { printf("Input base points from group 1, preceded by their number.\n");
    scanf("%hd",&nb1);
    if (nb1>=mb)
    { fprintf(stderr,"Too many base points. Increase MB.\n"); exit(1);}
    for (i=1;i<=nb1;i++) scanf("%hd",base+i);
    printf("Input base points from group 2, preceded by their number.\n");
    scanf("%hd",&nb2); nb=nb1+nb2;
    if (nb>=mb)
    { fprintf(stderr,"Too many base points. Increase MB.\n"); exit(1);}
    p=base+nb1+1;
    for (i=1;i<=nb2;i++) { scanf("%hd",p); (*p)+=npt1; p++; }
  }
  else nb=0;
  printf("How many permutations do you wish to output?  ");
  scanf("%hd",&np);
  fprintf(op,"%4d%4d%4d%4d\n",npt1+npt2,np,nb,0);
  if (nb>0)
  if (npt1+npt2>=1000)
  { for (i=1;i<=nb;i++) fprintf(op,"%5d",base[i]); fprintf(op,"\n");}
  else
  { for (i=1;i<=nb;i++) fprintf(op,"%4d",base[i]); fprintf(op,"\n");}
  printf("Now input the %d pairs of perm nos. Perm 0 = identity.\n",np);
  for (i=1;i<=np;i++)
  { scanf("%hd%hd",&m,&n);
    while (m>np1 || n>np2)
    { fprintf(stderr,"One of those nos is too big! Try again.\n");
      scanf("%hd%hd",&m,&n);
    }
    p=pptr1[m]; q=pptr2[n];
    if (npt1+npt2>=1000)
    { for (l=1;l<=npt1;l++) fprintf(op,"%5d",p[l]);
      for (l=1;l<=npt2;l++) fprintf(op,"%5d",q[l]+npt1);
    } else
    { for (l=1;l<=npt1;l++) fprintf(op,"%4d",p[l]);
      for (l=1;l<=npt2;l++) fprintf(op,"%4d",q[l]+npt1);
    }
    fprintf(op,"\n");
  }
error:
  if (err)
  { printf("Usage:    subdir inf1 inf2 outf.\n"); exit(1);}
  exit(0);
}

int 
snl (void)
{ while (getc(ip)!='\n'); }
