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1.1 ! root 1: #ifndef lint ! 2: static char sccsid[] = "@(#)btlgammon.c 1.2 (Berkeley) 9/20/87"; ! 3: #endif not lint ! 4: ! 5: /* ! 6: ** The game of Backgammon ! 7: */ ! 8: ! 9: #include <stdio.h> ! 10: ! 11: #define WHITE 0 ! 12: #define BROWN 1 ! 13: #define NIL (-1) ! 14: #define MAXGMOV 10 ! 15: #define MAXIMOVES 1000 ! 16: #define RULES "/usr/games/lib/backrules" ! 17: ! 18: char level; /*'b'=beginner, 'i'=intermediate, 'e'=expert*/ ! 19: ! 20: int die1; ! 21: int die2; ! 22: int i; ! 23: int j; ! 24: int l; ! 25: int m; ! 26: int pflg = 1; ! 27: int nobroll = 0; ! 28: int count; ! 29: int imoves; ! 30: int goodmoves[MAXGMOV]; ! 31: int probmoves[MAXGMOV]; ! 32: ! 33: int brown[] = { /* brown position table */ ! 34: 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, ! 35: 0, 0, 0, 0, 3, 0, 5, 0, 0, 0, 0, 0, ! 36: 0, 0, 0, 0, 0, 0 ! 37: }; ! 38: ! 39: int white[] = { /* white position table */ ! 40: 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, ! 41: 0, 0, 0, 0, 3, 0, 5, 0, 0, 0, 0, 0, ! 42: 0, 0, 0, 0, 0, 0 ! 43: }; ! 44: ! 45: int probability[] = { ! 46: 0, 11, 12, 13, 14, 15, 16, ! 47: 06, 05, 04, 03, 02, 01 ! 48: }; ! 49: ! 50: struct { ! 51: int pos[4]; ! 52: int mov[4]; ! 53: } moves[MAXIMOVES]; ! 54: ! 55: main() ! 56: { ! 57: int go[5], tvec[2]; ! 58: int k, n, pid, ret, rpid, t; ! 59: char s[100]; ! 60: ! 61: srand(time(0)); ! 62: go[5] = NIL; ! 63: fprintf(stdout, "Instructions? "); ! 64: gets(s); ! 65: if(*s == 'y') ! 66: instructions(); ! 67: putchar('\n'); ! 68: fprintf(stdout, "Opponent's level: b - beginner,\n"); ! 69: fprintf(stdout, "i - intermediate, e - expert? "); ! 70: level='e'; ! 71: gets(s); ! 72: if(*s == 'b') ! 73: level = 'b'; ! 74: else if(*s == 'i') ! 75: level = 'i'; ! 76: putchar('\n'); ! 77: fprintf(stdout, "You will play brown.\n\n"); ! 78: fprintf(stdout, "Would you like to roll your own dice? "); ! 79: gets(s); ! 80: putchar('\n'); ! 81: if(*s == 'y') ! 82: nobroll = 1; ! 83: fprintf(stdout, "Would you like to go first? "); ! 84: gets(s); ! 85: putchar('\n'); ! 86: if(*s == 'y') ! 87: goto nowhmove; ! 88: whitesmv: ! 89: roll(WHITE); ! 90: fprintf(stdout, "white rolls %d, %d\n", die1, die2); ! 91: fprintf(stdout, "white's move is:"); ! 92: if(nextmove(white, brown) == NIL) ! 93: goto nowhmove; ! 94: if(piececount(white, 0, 24) == 0){ ! 95: fprintf(stdout, "White wins"); ! 96: if(piececount(brown, 0, 6) != 0) ! 97: fprintf(stdout, " with a Backgammon!\n"); ! 98: else if (piececount(brown, 0, 24) == 24) ! 99: fprintf(stdout, " with a Gammon.\n"); ! 100: else ! 101: fprintf(stdout, ".\n"); ! 102: exit(0); ! 103: } ! 104: nowhmove: ! 105: if(pflg) ! 106: prtbrd(); ! 107: roll(BROWN); ! 108: retry: ! 109: fprintf(stdout, "\nYour roll is %d %d\n", die1, die2); ! 110: fprintf(stdout, "Move? "); ! 111: gets(s); ! 112: switch(*s) { ! 113: case '\0': /* empty line */ ! 114: fprintf(stdout, "Brown's move skipped.\n"); ! 115: goto whitesmv; ! 116: ! 117: case 'b': /* how many beared off? */ ! 118: fprintf(stdout, "Brown: %d\n", piececount(brown, 0, 24) - 15); ! 119: fprintf(stdout, "White: %d\n", piececount(white, 0, 24) - 15); ! 120: goto retry; ! 121: ! 122: case 'p': /* print board */ ! 123: prtbrd(); ! 124: goto retry; ! 125: ! 126: case 's': /* stop auto printing of board */ ! 127: pflg = 0; ! 128: goto retry; ! 129: ! 130: case 'r': /* resume auto printing */ ! 131: pflg = 1; ! 132: goto retry; ! 133: ! 134: case 'm': /* print possible moves */ ! 135: pmoves(); ! 136: goto retry; ! 137: ! 138: case 'q': /* i give up */ ! 139: exit(0); ! 140: ! 141: case '!': /* escape to Shell */ ! 142: #ifdef ADD_A_MAJOR_SECURITY_HOLE ! 143: if(s[1] != '\0') ! 144: system(s+1); ! 145: else ! 146: #endif ! 147: if (!(pid = vfork()) == 0) { ! 148: (void)setuid(getuid()); ! 149: (void)setgid(getgid()); ! 150: execl("/bin/sh", "sh", "-", 0); ! 151: fprintf(stderr, "back: cannot exec /bin/sh!\n"); ! 152: exit(2); ! 153: } ! 154: while((rpid = wait(&ret)) != pid && rpid != -1) ! 155: ; ! 156: goto retry; ! 157: ! 158: case '?': /* well, what can i do? */ ! 159: fprintf(stdout, "<newline> skip this move\n"); ! 160: fprintf(stdout, "b number beared off\n"); ! 161: fprintf(stdout, "p print board\n"); ! 162: fprintf(stdout, "q quit\n"); ! 163: fprintf(stdout, "r resume auto print of board\n"); ! 164: fprintf(stdout, "s stop auto print of board\n"); ! 165: fprintf(stdout, "! escape to Shell\n"); ! 166: goto retry; ! 167: } ! 168: n = sscanf(s,"%d%d%d%d%d",&go[0],&go[1],&go[2],&go[3],&go[4]); ! 169: if((die1 != die2 && n > 2) || n > 4){ ! 170: fprintf(stdout, "Too many moves.\n"); ! 171: goto retry; ! 172: } ! 173: go[n] = NIL; ! 174: if(*s=='-'){ ! 175: go[0]= -go[0]; ! 176: t=die1; ! 177: die1=die2; ! 178: die2=t; ! 179: } ! 180: for(k = 0; k < n; k++){ ! 181: if(0 <= go[k] && go[k] <= 24) ! 182: continue; ! 183: else{ ! 184: fprintf(stdout, "Move %d illegal.\n", go[k]); ! 185: goto retry; ! 186: } ! 187: } ! 188: if(play(brown, white, go)) ! 189: goto retry; ! 190: if(piececount(brown, 0, 24) == 0){ ! 191: fprintf(stdout, "Brown wins"); ! 192: if(piececount(white, 0, 6) != 0) ! 193: fprintf(stdout, " with a Backgammon.\n"); ! 194: else if(piececount(white, 0, 24) == 24) ! 195: fprintf(stdout, " with a gammon.\n"); ! 196: else ! 197: fprintf(stdout, ".\n"); ! 198: exit(0); ! 199: } ! 200: goto whitesmv; ! 201: } ! 202: ! 203: play(player,playee,pos) ! 204: int *player,*playee,pos[]; ! 205: { ! 206: int k, n, die, ipos; ! 207: ! 208: for(k=0; k < player[0]; k++){ /*blots on player[0] must be moved first*/ ! 209: if(pos[k] == NIL) ! 210: break; ! 211: if(pos[k] != 0){ ! 212: fprintf(stdout, "Stone on bar must be moved first.\n"); ! 213: return(NIL); ! 214: } ! 215: } ! 216: for(k = 0; (ipos=pos[k]) != NIL; k++){ ! 217: die = k?die2:die1; ! 218: n = 25-ipos-die; ! 219: if(player[ipos] == 0) ! 220: goto badmove; ! 221: if(n > 0 && playee[n] >= 2) ! 222: goto badmove; ! 223: if(n <= 0){ ! 224: if(piececount(player,0,18) != 0) ! 225: goto badmove; ! 226: if((ipos+die) != 25 && piececount(player,19,24-die)!=0) ! 227: goto badmove; ! 228: } ! 229: player[ipos]--; ! 230: player[ipos+die]++; ! 231: } ! 232: for(k = 0; pos[k] != NIL; k++){ ! 233: die = k?die2:die1; ! 234: n = 25-pos[k]-die; ! 235: if(n>0 && playee[n]==1){ ! 236: playee[n]=0; ! 237: playee[0]++; ! 238: } ! 239: } ! 240: return(0); ! 241: ! 242: badmove: ! 243: fprintf(stdout, "Move %d illegal.\n", ipos); ! 244: while(k--){ ! 245: die=k?die2:die1; ! 246: player[pos[k]]++; ! 247: player[pos[k]+die]--; ! 248: } ! 249: return(NIL); ! 250: } ! 251: nextmove(player,playee) ! 252: int *player,*playee; ! 253: { ! 254: int k; ! 255: ! 256: imoves=0; ! 257: movegen(player,playee); ! 258: if(die1!=die2){ ! 259: k=die1; ! 260: die1=die2; ! 261: die2=k; ! 262: movegen(player,playee); ! 263: } ! 264: if(imoves==0){ ! 265: fprintf(stdout, "no move possible.\n"); ! 266: return(NIL); ! 267: } ! 268: k=strategy(player,playee); /*select kth possible move*/ ! 269: prtmov(k); ! 270: update(player,playee,k); ! 271: return(0); ! 272: } ! 273: prtmov(k) ! 274: int k; ! 275: { ! 276: int n; ! 277: ! 278: if(k == NIL) ! 279: fprintf(stdout, "No move possible\n"); ! 280: else for(n = 0; n < 4; n++){ ! 281: if(moves[k].pos[n] == NIL) ! 282: break; ! 283: fprintf(stdout, " %d, %d",25-moves[k].pos[n],moves[k].mov[n]); ! 284: } ! 285: fprintf(stdout, "\n"); ! 286: } ! 287: update(player,playee,k) ! 288: int *player,*playee,k; ! 289: { ! 290: int n,t; ! 291: ! 292: for(n = 0; n < 4; n++){ ! 293: if(moves[k].pos[n] == NIL) ! 294: break; ! 295: player[moves[k].pos[n]]--; ! 296: player[moves[k].pos[n]+moves[k].mov[n]]++; ! 297: t=25-moves[k].pos[n]-moves[k].mov[n]; ! 298: if(t>0 && playee[t]==1){ ! 299: playee[0]++; ! 300: playee[t]--; ! 301: } ! 302: } ! 303: } ! 304: piececount(player,startrow,endrow) ! 305: int *player,startrow,endrow; ! 306: { ! 307: int sum; ! 308: ! 309: sum=0; ! 310: while(startrow <= endrow) ! 311: sum += player[startrow++]; ! 312: return(sum); ! 313: } ! 314: pmoves() ! 315: { ! 316: int i1, i2; ! 317: ! 318: fprintf(stdout, "Possible moves are:\n"); ! 319: for(i1 = 0; i1 < imoves; i1++){ ! 320: fprintf(stdout, "\n%d",i1); ! 321: for (i2 = 0; i2<4; i2++){ ! 322: if(moves[i1].pos[i2] == NIL) ! 323: break; ! 324: fprintf(stdout, "%d, %d",moves[i1].pos[i2],moves[i1].mov[i2]); ! 325: } ! 326: } ! 327: fprintf(stdout, "\n"); ! 328: } ! 329: ! 330: roll(who) ! 331: { ! 332: register n; ! 333: char s[10]; ! 334: ! 335: if(who == BROWN && nobroll) { ! 336: fprintf(stdout, "Roll? "); ! 337: gets(s); ! 338: n = sscanf(s, "%d%d", &die1, &die2); ! 339: if(n != 2 || die1 < 1 || die1 > 6 || die2 < 1 || die2 > 6) ! 340: fprintf(stdout, "Illegal - I'll do it!\n"); ! 341: else ! 342: return; ! 343: } ! 344: die1 = ((rand()>>8) % 6) + 1; ! 345: die2 = ((rand()>>8) % 6) + 1; ! 346: } ! 347: ! 348: movegen(mover,movee) ! 349: int *mover,*movee; ! 350: { ! 351: int k; ! 352: ! 353: for(i = 0; i <= 24; i++){ ! 354: count = 0; ! 355: if(mover[i] == 0) ! 356: continue; ! 357: if((k=25-i-die1) > 0 && movee[k] >= 2) ! 358: if(mover[0] > 0) ! 359: break; ! 360: else ! 361: continue; ! 362: if(k <= 0){ ! 363: if(piececount(mover, 0, 18) != 0) ! 364: break; ! 365: if((i+die1) != 25 && piececount(mover,19,i-1) != 0) ! 366: break; ! 367: } ! 368: mover[i]--; ! 369: mover[i+die1]++; ! 370: count = 1; ! 371: for(j = 0; j <= 24; j++){ ! 372: if(mover[j]==0) ! 373: continue; ! 374: if((k=25-j-die2) > 0 && movee[k] >= 2) ! 375: if(mover[0] > 0) ! 376: break; ! 377: else ! 378: continue; ! 379: if(k <= 0){ ! 380: if(piececount(mover,0,18) != 0) ! 381: break; ! 382: if((j+die2) != 25 && piececount(mover,19,j-1) != 0) ! 383: break; ! 384: } ! 385: mover[j]--; ! 386: mover[j+die2]++; ! 387: count = 2; ! 388: if(die1 != die2){ ! 389: moverecord(mover); ! 390: if(mover[0] > 0) ! 391: break; ! 392: else ! 393: continue; ! 394: } ! 395: for(l = 0; l <= 24; l++){ ! 396: if(mover[l] == 0) ! 397: continue; ! 398: if((k=25-l-die1) > 0 && movee[k] >= 2) ! 399: if(mover[0] > 0) ! 400: break; ! 401: else ! 402: continue; ! 403: if(k <= 0){ ! 404: if(piececount(mover, 0, 18) != 0) ! 405: break; ! 406: if((l+die2) != 25 && piececount(mover,19,l-1) != 0) ! 407: break; ! 408: } ! 409: mover[l]--; ! 410: mover[l+die1]++; ! 411: count=3; ! 412: for(m=0;m<=24;m++){ ! 413: if(mover[m]==0) ! 414: continue; ! 415: if((k=25-m-die1) >= 0 && movee[k] >= 2) ! 416: if(mover[0] > 0) ! 417: break; ! 418: else ! 419: continue; ! 420: if(k <= 0){ ! 421: if(piececount(mover,0,18) != 0) ! 422: break; ! 423: if((m+die2) != 25 && piececount(mover,19,m-1) != 0) ! 424: break; ! 425: } ! 426: count=4; ! 427: moverecord(mover); ! 428: if(mover[0] > 0) ! 429: break; ! 430: } ! 431: if(count == 3) ! 432: moverecord(mover); ! 433: else{ ! 434: mover[l]++; ! 435: mover[l+die1]--; ! 436: } ! 437: if(mover[0] > 0) ! 438: break; ! 439: } ! 440: if(count == 2) ! 441: moverecord(mover); ! 442: else{ ! 443: mover[j]++; ! 444: mover[j+die1]--; ! 445: } ! 446: if(mover[0] > 0) ! 447: break; ! 448: } ! 449: if(count == 1) ! 450: moverecord(mover); ! 451: else{ ! 452: mover[i]++; ! 453: mover[i+die1]--; ! 454: } ! 455: if(mover[0] > 0) ! 456: break; ! 457: } ! 458: } ! 459: moverecord(mover) ! 460: int *mover; ! 461: { ! 462: int t; ! 463: ! 464: if(imoves < MAXIMOVES) { ! 465: for(t = 0; t <= 3; t++) ! 466: moves[imoves].pos[t] = NIL; ! 467: switch(count) { ! 468: case 4: ! 469: moves[imoves].pos[3]=m; ! 470: moves[imoves].mov[3]=die1; ! 471: ! 472: case 3: ! 473: moves[imoves].pos[2]=l; ! 474: moves[imoves].mov[2]=die1; ! 475: ! 476: case 2: ! 477: moves[imoves].pos[1]=j; ! 478: moves[imoves].mov[1]=die2; ! 479: ! 480: case 1: ! 481: moves[imoves].pos[0]=i; ! 482: moves[imoves].mov[0]=die1; ! 483: imoves++; ! 484: } ! 485: } ! 486: switch(count) { ! 487: case 4: ! 488: break; ! 489: ! 490: case 3: ! 491: mover[l]++; ! 492: mover[l+die1]--; ! 493: break; ! 494: ! 495: case 2: ! 496: mover[j]++; ! 497: mover[j+die2]--; ! 498: break; ! 499: ! 500: case 1: ! 501: mover[i]++; ! 502: mover[i+die1]--; ! 503: } ! 504: } ! 505: ! 506: strategy(player,playee) ! 507: int *player,*playee; ! 508: { ! 509: int k, n, nn, bestval, moveval, prob; ! 510: ! 511: n = 0; ! 512: if(imoves == 0) ! 513: return(NIL); ! 514: goodmoves[0] = NIL; ! 515: bestval = -32000; ! 516: for(k = 0; k < imoves; k++){ ! 517: if((moveval=eval(player,playee,k,&prob)) < bestval) ! 518: continue; ! 519: if(moveval > bestval){ ! 520: bestval = moveval; ! 521: n = 0; ! 522: } ! 523: if(n<MAXGMOV){ ! 524: goodmoves[n]=k; ! 525: probmoves[n++]=prob; ! 526: } ! 527: } ! 528: if(level=='e' && n>1){ ! 529: nn=n; ! 530: n=0; ! 531: prob=32000; ! 532: for(k = 0; k < nn; k++){ ! 533: if((moveval=probmoves[k]) > prob) ! 534: continue; ! 535: if(moveval<prob){ ! 536: prob=moveval; ! 537: n=0; ! 538: } ! 539: goodmoves[n]=goodmoves[k]; ! 540: probmoves[n++]=probmoves[k]; ! 541: } ! 542: } ! 543: return(goodmoves[(rand()>>4)%n]); ! 544: } ! 545: ! 546: eval(player,playee,k,prob) ! 547: int *player,*playee,k,*prob; ! 548: { ! 549: int newtry[31], newother[31], *r, *q, *p, n, sum, first; ! 550: int ii, lastwhite, lastbrown; ! 551: ! 552: *prob = sum = 0; ! 553: r = player+25; ! 554: p = newtry; ! 555: q = newother; ! 556: while(player<r){ ! 557: *p++= *player++; ! 558: *q++= *playee++; ! 559: } ! 560: q=newtry+31; ! 561: for(p = newtry+25; p < q; p++) /* zero out spaces for hit pieces */ ! 562: *p = 0; ! 563: for(n = 0; n < 4; n++){ ! 564: if(moves[k].pos[n] == NIL) ! 565: break; ! 566: newtry[moves[k].pos[n]]--; ! 567: newtry[ii=moves[k].pos[n]+moves[k].mov[n]]++; ! 568: if(ii<25 && newother[25-ii]==1){ ! 569: newother[25-ii]=0; ! 570: newother[0]++; ! 571: if(ii<=15 && level=='e') /* hit if near other's home */ ! 572: sum++; ! 573: } ! 574: } ! 575: for(lastbrown = 0; newother[lastbrown] == 0; lastbrown++); ! 576: ; ! 577: for(lastwhite = 0; newtry[lastwhite] == 0; lastwhite++) ! 578: ; ! 579: lastwhite = 25-lastwhite; ! 580: if(lastwhite<=6 && lastwhite<lastbrown) ! 581: sum=1000; ! 582: /* experts running game. */ ! 583: /* first priority is to */ ! 584: /* get all pieces into */ ! 585: /* white's home */ ! 586: if(lastwhite<lastbrown && level=='e' && lastwhite>6) { ! 587: for(sum = 1000; lastwhite > 6; lastwhite--) ! 588: sum = sum-lastwhite*newtry[25-lastwhite]; ! 589: } ! 590: for(first = 0; first < 25; first++) ! 591: if(newother[first] != 0) /*find other's first piece*/ ! 592: break; ! 593: q = newtry+25; ! 594: for(p = newtry+1; p < q;) /* blocked points are good */ ! 595: if(*p++ > 1) ! 596: sum++; ! 597: if(first > 5) { /* only stress removing pieces if */ ! 598: /* homeboard cannot be hit */ ! 599: q = newtry+31; ! 600: p=newtry+25; ! 601: for(n = 6; p < q; n--) ! 602: sum += *p++ * n; /*remove pieces, but just barely*/ ! 603: } ! 604: if(level != 'b'){ ! 605: r = newtry+25-first; /*singles past this point can't be hit*/ ! 606: for(p = newtry+7; p < r; ) ! 607: if(*p++ == 1) /*singles are bad after 1st 6 points if they can be hit*/ ! 608: sum--; ! 609: q = newtry+3; ! 610: for(p = newtry; p < q; ) /*bad to be on 1st three points*/ ! 611: sum -= *p++; ! 612: } ! 613: ! 614: for(n = 1; n <= 4; n++) ! 615: *prob += n*getprob(newtry,newother,6*n-5,6*n); ! 616: return(sum); ! 617: } ! 618: instructions() ! 619: { ! 620: register fd, r; ! 621: char buf[BUFSIZ]; ! 622: ! 623: if((fd = open(RULES, 0)) < 0) { ! 624: fprintf(stderr, "back: cannot open %s\n", RULES); ! 625: return; ! 626: } ! 627: while(r = read(fd, buf, BUFSIZ)) ! 628: write(1, buf, r); ! 629: } ! 630: ! 631: getprob(player,playee,start,finish) ! 632: int *player,*playee,start,finish; ! 633: { /*returns the probability (times 102) that any ! 634: pieces belonging to 'player' and lying between ! 635: his points 'start' and 'finish' will be hit ! 636: by a piece belonging to playee ! 637: */ ! 638: int k, n, sum; ! 639: ! 640: sum = 0; ! 641: for(; start <= finish; start++){ ! 642: if(player[start] == 1){ ! 643: for(k = 1; k <= 12; k++){ ! 644: if((n=25-start-k) < 0) ! 645: break; ! 646: if(playee[n] != 0) ! 647: sum += probability[k]; ! 648: } ! 649: } ! 650: } ! 651: return(sum); ! 652: } ! 653: prtbrd() ! 654: { ! 655: int k; ! 656: static char undersc[]="______________________________________________________"; ! 657: ! 658: fprintf(stdout, "White's Home\n%s\r",undersc); ! 659: for(k = 1; k <= 6; k++) ! 660: fprintf(stdout, "%4d",k); ! 661: fprintf(stdout, " "); ! 662: for(k = 7; k <= 12; k++) ! 663: fprintf(stdout, "%4d",k); ! 664: putchar('\n'); ! 665: numline(brown, white, 1, 6); ! 666: fprintf(stdout, " "); ! 667: numline(brown, white, 7, 12); ! 668: putchar('\n'); ! 669: colorline(brown, 'B', white, 'W', 1, 6); ! 670: fprintf(stdout, " "); ! 671: colorline(brown, 'B', white, 'W', 7, 12); ! 672: putchar('\n'); ! 673: if(white[0] != 0) ! 674: fprintf(stdout, "%28dW\n",white[0]); ! 675: else ! 676: putchar('\n'); ! 677: if(brown[0] != 0) ! 678: fprintf(stdout, "%28dB\n", brown[0]); ! 679: else ! 680: putchar('\n'); ! 681: colorline(white, 'W', brown, 'B', 1, 6); ! 682: fprintf(stdout, " "); ! 683: colorline(white, 'W', brown, 'B', 7, 12); ! 684: fprintf(stdout, "\n%s\r",undersc); ! 685: numline(white, brown, 1, 6); ! 686: fprintf(stdout, " "); ! 687: numline(white, brown, 7, 12); ! 688: putchar('\n'); ! 689: for(k = 24; k >= 19; k--) ! 690: fprintf(stdout, "%4d",k); ! 691: fprintf(stdout, " "); ! 692: for(k = 18; k >= 13; k--) ! 693: fprintf(stdout, "%4d",k); ! 694: fprintf(stdout, "\nBrown's Home\n\n\n\n\n"); ! 695: } ! 696: numline(upcol,downcol,start,fin) ! 697: int *upcol,*downcol,start,fin; ! 698: { ! 699: int k, n; ! 700: ! 701: for(k = start; k <= fin; k++){ ! 702: if((n = upcol[k]) != 0 || (n = downcol[25-k]) != 0) ! 703: fprintf(stdout, "%4d", n); ! 704: else ! 705: fprintf(stdout, " "); ! 706: } ! 707: } ! 708: colorline(upcol,c1,downcol,c2,start,fin) ! 709: int *upcol,*downcol,start,fin; ! 710: char c1,c2; ! 711: { ! 712: int k; ! 713: char c; ! 714: ! 715: for(k = start; k <= fin; k++){ ! 716: c = ' '; ! 717: if(upcol[k] != 0) ! 718: c = c1; ! 719: if(downcol[25-k] != 0) ! 720: c = c2; ! 721: fprintf(stdout, " %c",c); ! 722: } ! 723: }
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