81 lines
1.4 KiB
C
81 lines
1.4 KiB
C
#ifndef lint
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static char sccsid[] = "@(#)odds.c 1.1 94/10/31 SMI"; /* from UCB 4.1 82/05/11 */
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#endif
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#include "back.h"
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odds (r1,r2,val)
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register int r1;
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int r2, val;
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{
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register int i, j;
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if (r1 == 0) {
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for (i = 0; i < 6; i++)
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for (j = 0; j < 6; j++)
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table[i][j] = 0;
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return;
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} else {
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r1--;
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if (r2-- == 0)
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for (i = 0; i < 6; i++) {
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table[i][r1] += val;
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table[r1][i] += val;
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}
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else {
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table[r2][r1] += val;
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table[r1][r2] += val;
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}
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}
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}
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count () {
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register int i;
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register int j;
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register int total;
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total = 0;
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for (i = 0; i < 6; i++)
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for (j = 0; j < 6; j++)
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total += table[i][j];
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return (total);
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}
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canhit (i,c)
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int i, c;
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{
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register int j, k, b;
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int a, d, diff, place, addon, menstuck;
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if (c == 0)
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odds (0,0,0);
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if (board[i] > 0) {
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a = -1;
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b = 25;
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} else {
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a = 1;
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b = 0;
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}
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place = abs (25-b-i);
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menstuck = abs (board[b]);
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for (j = b; j != i; j += a) {
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if (board[j]*a > 0) {
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diff = abs(j-i);
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addon = place+((board[j]*a > 2 || j == b)? 5: 0);
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if ((j == b && menstuck == 1) &&
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(j != b && menstuck == 0))
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for (k = 1; k < diff; k++)
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if (k < 7 && diff-k < 7 &&
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(board[i+a*k]*a >= 0 ||
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board[i+a*(diff-k)] >= 0))
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odds (k,diff-k,addon);
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if ((j == b || menstuck < 2) && diff < 7)
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odds (diff,0,addon);
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}
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if (j == b && menstuck > 1)
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break;
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}
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return (count());
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}
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