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1.1 root 1: static char sccsid[] = " odds.c 4.1 82/05/11 ";
2:
3: #include "back.h"
4:
5: odds (r1,r2,val)
6: register int r1;
7: int r2, val;
8: {
9: register int i, j;
10:
11: if (r1 == 0) {
12: for (i = 0; i < 6; i++)
13: for (j = 0; j < 6; j++)
14: table[i][j] = 0;
15: return;
16: } else {
17: r1--;
18: if (r2-- == 0)
19: for (i = 0; i < 6; i++) {
20: table[i][r1] += val;
21: table[r1][i] += val;
22: }
23: else {
24: table[r2][r1] += val;
25: table[r1][r2] += val;
26: }
27: }
28: }
29:
30: count () {
31: register int i;
32: register int j;
33: register int total;
34:
35: total = 0;
36: for (i = 0; i < 6; i++)
37: for (j = 0; j < 6; j++)
38: total += table[i][j];
39: return (total);
40: }
41:
42: canhit (i,c)
43: int i, c;
44:
45: {
46: register int j, k, b;
47: int a, d, diff, place, addon, menstuck;
48:
49: if (c == 0)
50: odds (0,0,0);
51: if (board[i] > 0) {
52: a = -1;
53: b = 25;
54: } else {
55: a = 1;
56: b = 0;
57: }
58: place = abs (25-b-i);
59: menstuck = abs (board[b]);
60: for (j = b; j != i; j += a) {
61: if (board[j]*a > 0) {
62: diff = abs(j-i);
63: addon = place+((board[j]*a > 2 || j == b)? 5: 0);
64: if ((j == b && menstuck == 1) &&
65: (j != b && menstuck == 0))
66: for (k = 1; k < diff; k++)
67: if (k < 7 && diff-k < 7 &&
68: (board[i+a*k]*a >= 0 ||
69: board[i+a*(diff-k)] >= 0))
70: odds (k,diff-k,addon);
71: if ((j == b || menstuck < 2) && diff < 7)
72: odds (diff,0,addon);
73: }
74: if (j == b && menstuck > 1)
75: break;
76: }
77: return (count());
78: }
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