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Refer to group elements by letters instead of numbers, in keeping

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with usual abstract group notation. In puzzles with a clear
identity, it's called e.

[originally from svn r8812]
This commit is contained in:
Simon Tatham
2010-01-05 23:40:41 +00:00
parent 13d7ff6ae5
commit dd4c8ceb1f
2 changed files with 218 additions and 202 deletions
Download Patch File Download Diff File Expand all files Collapse all files

414
unfinished/group.c
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@ -65,11 +65,16 @@ enum {
NCOLOURS NCOLOURS
}; };
#define FROMCHAR(c) ((c)>='0'&&(c)<='9' ? (c)-'0' : \ /*
(c)>='A'&&(c)<='Z' ? (c)-'A'+10 : (c)-'a'+10) * In identity mode, we number the elements e,a,b,c,d,f,g,h,...
#define ISCHAR(c) (((c)>='0'&&(c)<='9') || \ * Otherwise, they're a,b,c,d,e,f,g,h,... in the obvious way.
((c)>='A'&&(c)<='Z') || ((c)>='a'&&(c)<='z')) */
#define TOCHAR(c) ((c)>=10 ? (c)-10+'a' : (c)+'0') #define E_TO_FRONT(c,id) ( (id) && (c)<=5 ? (c) % 5 + 1 : (c) )
#define E_FROM_FRONT(c,id) ( (id) && (c)<=5 ? ((c) + 3) % 5 + 1 : (c) )
#define FROMCHAR(c,id) E_TO_FRONT((((c)-('A'-1)) & ~0x20), id)
#define ISCHAR(c) (((c)>='A'&&(c)<='Z') || ((c)>='a'&&(c)<='z'))
#define TOCHAR(c,id) (E_FROM_FRONT(c,id) + ('a'-1))
struct game_params { struct game_params {
int w, diff, id; int w, diff, id;
@ -97,10 +102,10 @@ static game_params *default_params(void)
const static struct game_params group_presets[] = { const static struct game_params group_presets[] = {
{ 6, DIFF_NORMAL, TRUE }, { 6, DIFF_NORMAL, TRUE },
{ 6, DIFF_NORMAL, FALSE }, { 6, DIFF_NORMAL, FALSE },
{ 6, DIFF_HARD, TRUE },
{ 6, DIFF_HARD, FALSE },
{ 8, DIFF_NORMAL, TRUE }, { 8, DIFF_NORMAL, TRUE },
{ 8, DIFF_NORMAL, FALSE }, { 8, DIFF_NORMAL, FALSE },
{ 8, DIFF_HARD, TRUE },
{ 8, DIFF_HARD, FALSE },
{ 12, DIFF_NORMAL, TRUE }, { 12, DIFF_NORMAL, TRUE },
}; };
@ -158,6 +163,10 @@ static void decode_params(game_params *params, char const *string)
} }
} else if (*p == 'i') { } else if (*p == 'i') {
params->id = FALSE; params->id = FALSE;
p++;
} else {
/* unrecognised character */
p++;
} }
} }
} }
@ -219,10 +228,20 @@ static game_params *custom_params(config_item *cfg)
static char *validate_params(game_params *params, int full) static char *validate_params(game_params *params, int full)
{ {
if (params->w < 3 || params->w > 31) if (params->w < 3 || params->w > 26)
return "Grid size must be between 3 and 31"; return "Grid size must be between 3 and 26";
if (params->diff >= DIFFCOUNT) if (params->diff >= DIFFCOUNT)
return "Unknown difficulty rating"; return "Unknown difficulty rating";
if (!params->id && params->diff == DIFF_TRIVIAL) {
/*
* We can't have a Trivial-difficulty puzzle (i.e. latin
* square deductions only) without a clear identity, because
* identityless puzzles always have two rows and two columns
* entirely blank, and no latin-square deduction permits the
* distinguishing of two such rows.
*/
return "Trivial puzzles must have an identity";
}
return NULL; return NULL;
} }
@ -233,6 +252,9 @@ static char *validate_params(game_params *params, int full)
static int solver_normal(struct latin_solver *solver, void *vctx) static int solver_normal(struct latin_solver *solver, void *vctx)
{ {
int w = solver->o; int w = solver->o;
#ifdef STANDALONE_SOLVER
char **names = solver->names;
#endif
digit *grid = solver->grid; digit *grid = solver->grid;
int i, j, k; int i, j, k;
@ -253,13 +275,14 @@ static int solver_normal(struct latin_solver *solver, void *vctx)
int n = grid[(grid[i*w+j]-1)*w+k]; int n = grid[(grid[i*w+j]-1)*w+k];
#ifdef STANDALONE_SOLVER #ifdef STANDALONE_SOLVER
if (solver_show_working) { if (solver_show_working) {
printf("%*sassociativity on %d,%d,%d: %d*%d = %d*%d\n", printf("%*sassociativity on %s,%s,%s: %s*%s = %s*%s\n",
solver_recurse_depth*4, "", solver_recurse_depth*4, "",
i+1, j+1, k+1, names[i], names[j], names[k],
grid[i*w+j], k+1, i+1, grid[j*w+k]); names[grid[i*w+j]-1], names[k],
printf("%*s placing %d at (%d,%d)\n", names[i], names[grid[j*w+k]-1]);
printf("%*s placing %s at (%d,%d)\n",
solver_recurse_depth*4, "", solver_recurse_depth*4, "",
n, x+1, y+1); names[n-1], x+1, y+1);
} }
#endif #endif
if (solver->cube[(x*w+y)*w+n-1]) { if (solver->cube[(x*w+y)*w+n-1]) {
@ -280,13 +303,14 @@ static int solver_normal(struct latin_solver *solver, void *vctx)
int n = grid[i*w+(grid[j*w+k]-1)]; int n = grid[i*w+(grid[j*w+k]-1)];
#ifdef STANDALONE_SOLVER #ifdef STANDALONE_SOLVER
if (solver_show_working) { if (solver_show_working) {
printf("%*sassociativity on %d,%d,%d: %d*%d = %d*%d\n", printf("%*sassociativity on %s,%s,%s: %s*%s = %s*%s\n",
solver_recurse_depth*4, "", solver_recurse_depth*4, "",
i+1, j+1, k+1, names[i], names[j], names[k],
grid[i*w+j], k+1, i+1, grid[j*w+k]); names[grid[i*w+j]-1], names[k],
printf("%*s placing %d at (%d,%d)\n", names[i], names[grid[j*w+k]-1]);
printf("%*s placing %s at (%d,%d)\n",
solver_recurse_depth*4, "", solver_recurse_depth*4, "",
n, x+1, y+1); names[n-1], x+1, y+1);
} }
#endif #endif
if (solver->cube[(x*w+y)*w+n-1]) { if (solver->cube[(x*w+y)*w+n-1]) {
@ -309,14 +333,32 @@ static int solver_normal(struct latin_solver *solver, void *vctx)
#define SOLVER(upper,title,func,lower) func, #define SOLVER(upper,title,func,lower) func,
static usersolver_t const group_solvers[] = { DIFFLIST(SOLVER) }; static usersolver_t const group_solvers[] = { DIFFLIST(SOLVER) };
static int solver(int w, digit *grid, int maxdiff) static int solver(game_params *params, digit *grid, int maxdiff)
{ {
int w = params->w;
int ret; int ret;
struct latin_solver solver;
#ifdef STANDALONE_SOLVER
char *p, text[100], *names[50];
int i;
#endif
ret = latin_solver(grid, w, maxdiff, latin_solver_alloc(&solver, grid, w);
DIFF_TRIVIAL, DIFF_HARD, DIFF_EXTREME, #ifdef STANDALONE_SOLVER
DIFF_EXTREME, DIFF_UNREASONABLE, for (i = 0, p = text; i < w; i++) {
group_solvers, NULL, NULL, NULL); names[i] = p;
*p++ = TOCHAR(i+1, params->id);
*p++ = '\0';
}
solver.names = names;
#endif
ret = latin_solver_main(&solver, maxdiff,
DIFF_TRIVIAL, DIFF_HARD, DIFF_EXTREME,
DIFF_EXTREME, DIFF_UNREASONABLE,
group_solvers, NULL, NULL, NULL);
latin_solver_free(&solver);
return ret; return ret;
} }
@ -376,187 +418,151 @@ struct groups {
static const struct group groupdata[] = { static const struct group groupdata[] = {
/* order 2 */ /* order 2 */
{1L, 2, 1, "21"}, {1L, 2, 1, "BA"},
/* order 3 */ /* order 3 */
{2L, 3, 1, "231"}, {2L, 3, 1, "BCA"},
/* order 4 */ /* order 4 */
{2L, 4, 1, "2341"}, {2L, 4, 1, "BCDA"},
{6L, 4, 2, "2143" "3412"}, {6L, 4, 2, "BADC" "CDAB"},
/* order 5 */ /* order 5 */
{4L, 5, 1, "23451"}, {4L, 5, 1, "BCDEA"},
/* order 6 */ /* order 6 */
{6L, 6, 2, "365214" "214365"}, {6L, 6, 2, "CFEBAD" "BADCFE"},
{2L, 6, 1, "436521"}, {2L, 6, 1, "DCFEBA"},
/* order 7 */ /* order 7 */
{6L, 7, 1, "2345671"}, {6L, 7, 1, "BCDEFGA"},
/* order 8 */ /* order 8 */
{4L, 8, 1, "23564781"}, {4L, 8, 1, "BCEFDGHA"},
{8L, 8, 2, "24567183" "57284361"}, {8L, 8, 2, "BDEFGAHC" "EGBHDCFA"},
{8L, 8, 2, "57284361" "21563487"}, {8L, 8, 2, "EGBHDCFA" "BAEFCDHG"},
{24L, 8, 2, "24567183" "38472516"}, {24L, 8, 2, "BDEFGAHC" "CHDGBEAF"},
{168L, 8, 3, "21563487" "35172846" "46718235"}, {168L, 8, 3, "BAEFCDHG" "CEAGBHDF" "DFGAHBCE"},
/* order 9 */ /* order 9 */
{6L, 9, 1, "245378691"}, {6L, 9, 1, "BDECGHFIA"},
{48L, 9, 2, "245178396" "356781924"}, {48L, 9, 2, "BDEAGHCIF" "CEFGHAIBD"},
/* order 10 */ /* order 10 */
{20L, 10, 2, "3A52749618" "21436587A9"}, {20L, 10, 2, "CJEBGDIFAH" "BADCFEHGJI"},
{4L, 10, 1, "436587A921"}, {4L, 10, 1, "DCFEHGJIBA"},
/* order 11 */ /* order 11 */
{10L, 11, 1, "23456789AB1"}, {10L, 11, 1, "BCDEFGHIJKA"},
/* order 12 */ /* order 12 */
{12L, 12, 2, "7C4BA5832916" "2356179A4BC8"}, {12L, 12, 2, "GLDKJEHCBIAF" "BCEFAGIJDKLH"},
{4L, 12, 1, "589AB32C4761"}, {4L, 12, 1, "EHIJKCBLDGFA"},
{24L, 12, 2, "256719AB34C8" "6A2B8C574391"}, {24L, 12, 2, "BEFGAIJKCDLH" "FJBKHLEGDCIA"},
{12L, 12, 2, "7C4BA5832916" "2156349A78CB"}, {12L, 12, 2, "GLDKJEHCBIAF" "BAEFCDIJGHLK"},
{12L, 12, 2, "649A78C2B153" "794B6C83A512"}, {12L, 12, 2, "FDIJGHLBKAEC" "GIDKFLHCJEAB"},
/* order 13 */ /* order 13 */
{12L, 13, 1, "23456789ABCD1"}, {12L, 13, 1, "BCDEFGHIJKLMA"},
/* order 14 */ /* order 14 */
{42L, 14, 2, "5C7E92B4D6183A" "21436587A9CBED"}, {42L, 14, 2, "ELGNIBKDMFAHCJ" "BADCFEHGJILKNM"},
{6L, 14, 1, "6587A9CBED2143"}, {6L, 14, 1, "FEHGJILKNMBADC"},
/* order 15 */ /* order 15 */
{8L, 15, 1, "5783AB6DE9F2C41"}, {8L, 15, 1, "EGHCJKFMNIOBLDA"},
/* order 16 */ /* order 16 */
{8L, 16, 1, "DBEG6F1427C3958A"}, {8L, 16, 1, "MKNPFOADBGLCIEHJ"},
{96L, 16, 2, "9CB3FE6G54A87D12" "2467891BCDE3F5GA"}, {96L, 16, 2, "ILKCONFPEDJHGMAB" "BDFGHIAKLMNCOEPJ"},
{32L, 16, 2, "D98G643FE2C1BA75" "25678AB1CDEF34G9"}, {32L, 16, 2, "MIHPFDCONBLAKJGE" "BEFGHJKALMNOCDPI"},
{32L, 16, 2, "9613F7CD45A2EGB8" "25678AB1CDEF34G9"}, {32L, 16, 2, "IFACOGLMDEJBNPKH" "BEFGHJKALMNOCDPI"},
{16L, 16, 2, "DF8G6B39E2C14A75" "2467895BCDEAF1G3"}, {16L, 16, 2, "MOHPFKCINBLADJGE" "BDFGHIEKLMNJOAPC"},
{16L, 16, 2, "D98G64AFE2C5B371" "2467895BCDEAF1G3"}, {16L, 16, 2, "MIHPFDJONBLEKCGA" "BDFGHIEKLMNJOAPC"},
{32L, 16, 2, "DF8G6439E2C5BA71" "21678345CDE9ABGF"}, {32L, 16, 2, "MOHPFDCINBLEKJGA" "BAFGHCDELMNIJKPO"},
{16L, 16, 2, "D98G6BAFE2C14375" "74G8EF5B6C2391DA"}, {16L, 16, 2, "MIHPFKJONBLADCGE" "GDPHNOEKFLBCIAMJ"},
{32L, 16, 2, "D92G64AF78C5B3E1" "3C59A7DGB1F8E642"}, {32L, 16, 2, "MIBPFDJOGHLEKCNA" "CLEIJGMPKAOHNFDB"},
{192L, 16, 3, {192L, 16, 3,
"D38G619AE2C45F7B" "25678AB1CDEF34G9" "7BC2EF546G8A91D3"}, "MCHPFAIJNBLDEOGK" "BEFGHJKALMNOCDPI" "GKLBNOEDFPHJIAMC"},
{64L, 16, 3, "D38G619AE2C45F7B" "CF76GBA92ED54381" "3D19A8G645FE2CB7"}, {64L, 16, 3, "MCHPFAIJNBLDEOGK" "LOGFPKJIBNMEDCHA" "CMAIJHPFDEONBLKG"},
{192L, 16, 3, {192L, 16, 3,
"9GB3F7DC54A2E618" "25678AB1CDEF34G9" "3D59A2G6B1F78C4E"}, "IPKCOGMLEDJBNFAH" "BEFGHJKALMNOCDPI" "CMEIJBPFKAOGHLDN"},
{48L, 16, 3, "9G4AFE6C5B327D18" "6A2CD5F378GB19E4" "4795BC8EAF1DG236"}, {48L, 16, 3, "IPDJONFLEKCBGMAH" "FJBLMEOCGHPKAIND" "DGIEKLHNJOAMPBCF"},
{20160L, 16, 4, {20160L, 16, 4,
"58AB1DE2F34G679C" "21678345CDE9ABGF" "3619A2CD45F78GBE" "EHJKAMNBOCDPFGIL" "BAFGHCDELMNIJKPO" "CFAIJBLMDEOGHPKN"
"4791BC2E3F56G8AD"}, "DGIAKLBNCOEFPHJM"},
/* order 17 */ /* order 17 */
{16L, 17, 1, "56789ABCDEFGH1234"}, {16L, 17, 1, "EFGHIJKLMNOPQABCD"},
/* order 18 */ /* order 18 */
{54L, 18, 2, "DB9HFGE17CI5342A86" "215634ABC789FGDEIH"}, {54L, 18, 2, "MKIQOPNAGLRECDBJHF" "BAEFCDJKLGHIOPMNRQ"},
{6L, 18, 1, "53AB786FG4DECI9H21"}, {6L, 18, 1, "ECJKGHFOPDMNLRIQBA"},
{12L, 18, 2, "53AB782FG1DE6I4HC9" "BEFGH36I5978CA1D24"}, {12L, 18, 2, "ECJKGHBOPAMNFRDQLI" "KNOPQCFREIGHLJAMBD"},
{432L, 18, 3, {432L, 18, 3,
"96E1BCH34FG278I5DA" "EFH36I978BCA1DG245" "215634ABC789FGDEIH"}, "IFNAKLQCDOPBGHREMJ" "NOQCFRIGHKLJAMPBDE" "BAEFCDJKLGHIOPMNRQ"},
{48L, 18, 2, "53AB782FG1DE6I4HC9" "64BC89FG2DE1I5H3A7"}, {48L, 18, 2, "ECJKGHBOPAMNFRDQLI" "FDKLHIOPBMNAREQCJG"},
/* order 19 */ /* order 19 */
{18L, 19, 1, "56789ABCDEFGHIJ1234"}, {18L, 19, 1, "EFGHIJKLMNOPQRSABCD"},
/* order 20 */ /* order 20 */
{40L, 20, 2, "7K4BI58F29CJ6DG3AH1E" "5129346D78AHBCEKFGIJ"}, {40L, 20, 2, "GTDKREHOBILSFMPCJQAN" "EABICDFMGHJQKLNTOPRS"},
{8L, 20, 1, "589AC3DEG7HIJB2K4F61"}, {8L, 20, 1, "EHIJLCMNPGQRSKBTDOFA"},
{20L, 20, 2, "4AJ8HE3CKI7G52B196FD" "5129346D78AHBCEKFGIJ"}, {20L, 20, 2, "DJSHQNCLTRGPEBKAIFOM" "EABICDFMGHJQKLNTOPRS"},
{40L, 20, 2, "7K4BI58F29CJ6DG3AH1E" "5329176D4BAH8FEKCJIG"}, {40L, 20, 2, "GTDKREHOBILSFMPCJQAN" "ECBIAGFMDKJQHONTLSRP"},
{24L, 20, 2, "976D4BAH8FEKCJI5G321" "649A78DEBCHIFGK2J153"}, {24L, 20, 2, "IGFMDKJQHONTLSREPCBA" "FDIJGHMNKLQROPTBSAEC"},
/* order 21 */ /* order 21 */
{42L, 21, 2, "9KCJ2FL5I4817B3AE6DHG" "5A8CDBFGEIJH1LK342679"}, {42L, 21, 2, "ITLSBOUERDHAGKCJNFMQP" "EJHLMKOPNRSQAUTCDBFGI"},
{12L, 21, 1, "5783AB6DE9GHCJKFL2I41"}, {12L, 21, 1, "EGHCJKFMNIPQLSTOUBRDA"},
/* order 22 */ /* order 22 */
{110L, 22, 2, "5K7M92B4D6F8HAJCLE1G3I" "21436587A9CBEDGFIHKJML"}, {110L, 22, 2, "ETGVIBKDMFOHQJSLUNAPCR" "BADCFEHGJILKNMPORQTSVU"},
{10L, 22, 1, "6587A9CBEDGFIHKJML2143"}, {10L, 22, 1, "FEHGJILKNMPORQTSVUBADC"},
/* order 23 */ /* order 23 */
{22L, 23, 1, "56789ABCDEFGHIJKLMN1234"}, {22L, 23, 1, "EFGHIJKLMNOPQRSTUVWABCD"},
/* order 24 */ /* order 24 */
{24L, 24, 2, "HO5ANGLDBCI9M26KJ1378E4F" "8IEFGJN3KLM2C49AO671BHD5"}, {24L, 24, 2, "QXEJWPUMKLRIVBFTSACGHNDO" "HRNOPSWCTUVBLDIJXFGAKQME"},
{8L, 24, 1, "DH2KL4IN678OA5C9EFGBJ1M3"}, {8L, 24, 1, "MQBTUDRWFGHXJELINOPKSAVC"},
{24L, 24, 2, "9FHI25LM6N78BC1ODEGJ34KA" "EAOFM74BJDK69GH5C3LI2N18"}, {24L, 24, 2, "IOQRBEUVFWGHKLAXMNPSCDTJ" "NJXOVGDKSMTFIPQELCURBWAH"},
{48L, 24, 2, "HL5ANMO6BCI9G7DEJ132FK48" "8JEFGNC4KLM2I91BO673H5DA"}, {48L, 24, 2, "QUEJWVXFKLRIPGMNSACBOTDH" "HSNOPWLDTUVBRIAKXFGCQEMJ"},
{24L, 24, 2, "HO5ANGLDBCI9M26KJ1378E4F" "KN8EOCI9FGLDJ13HM2645A7B"}, {24L, 24, 2, "QXEJWPUMKLRIVBFTSACGHNDO" "TWHNXLRIOPUMSACQVBFDEJGK"},
{48L, 24, 2, "HL5ANMO6BCI9G7DEJ132FK48" "21678345DEFG9ABCKLMHIJON"}, {48L, 24, 2, "QUEJWVXFKLRIPGMNSACBOTDH" "BAFGHCDEMNOPIJKLTUVQRSXW"},
{48L, 24, 3, {48L, 24, 3,
"HOBANMLD5JI9G76KC432FE18" "AL5HIGO6BCN3M2DEJ1978K4F" "QXKJWVUMESRIPGFTLDCBONAH" "JUEQRPXFKLWCVBMNSAIGHTDO"
"8JEFGNC4KLM2I91BO673H5DA"}, "HSNOPWLDTUVBRIAKXFGCQEMJ"},
{24L, 24, 3, {24L, 24, 3,
"HLBANGO65JI9M2DEC4378K1F" "AO5HIMLDBCN3G76KJ192FE48" "QUKJWPXFESRIVBMNLDCGHTAO" "JXEQRVUMKLWCPGFTSAIBONDH"
"KIFEOCN38MLDJ19AG7645H2B"}, "TRONXLWCHVUMSAIJPGFDEQBK"},
{16L, 24, 2, "DI7KLCN9FG6OJ4AH2ME5B381" "MBO8FH1JEKG23N45L679ACDI"}, {16L, 24, 2, "MRGTULWIOPFXSDJQBVNEKCHA" "VKXHOQASNTPBCWDEUFGIJLMR"},
{16L, 24, 2, "DI7KLCN9FG6OJ4AH2ME5B381" "IDCN97KLJ4AHFG6O5B32ME18"}, {16L, 24, 2, "MRGTULWIOPFXSDJQBVNEKCHA" "RMLWIGTUSDJQOPFXEKCBVNAH"},
{48L, 24, 2, "9LCHI7ODJ43NFGEK5BA2M618" "7CDFGIJ4KL2MN95B6O8AH1E3"}, {48L, 24, 2, "IULQRGXMSDCWOPNTEKJBVFAH" "GLMOPRSDTUBVWIEKFXHJQANC"},
{24L, 24, 2, "LAGODI3JE87KCN9B6M254HF1" "EIL6MCN9GODFA54H87K3J12B"}, {24L, 24, 2, "UJPXMRCSNHGTLWIKFVBEDQOA" "NRUFVLWIPXMOJEDQHGTCSABK"},
{24L, 24, 2, "D92KL1HI678O345NEFGABCMJ" "FBOM6NJ37LKE4IHA2GD1C985"}, {24L, 24, 2, "MIBTUAQRFGHXCDEWNOPJKLVS" "OKXVFWSCGUTNDRQJBPMALIHE"},
{144L, 24, 3, {144L, 24, 3,
"HOBANMLD5JI9G76KC432FE18" "AL5HIGO6BCN3M2DEJ1978K4F" "QXKJWVUMESRIPGFTLDCBONAH" "JUEQRPXFKLWCVBMNSAIGHTDO"
"21678345DEFG9ABCKLMHIJON"}, "BAFGHCDEMNOPIJKLTUVQRSXW"},
{336L, 24, 3, {336L, 24, 3,
"HKBANFEO5JI98MLDC43G7612" "AE5HI8KLBCN3FGO6J19M2D47" "QTKJWONXESRIHVUMLDCPGFAB" "JNEQRHTUKLWCOPXFSAIVBMDG"
"85EFGABCKLM2HIJ1O67N34D9"}, "HENOPJKLTUVBQRSAXFGWCDMI"},
/* order 25 */ /* order 25 */
{20L, 25, 1, "589CDEGHIJ6KLM2ANO4FP71B3"}, {20L, 25, 1, "EHILMNPQRSFTUVBJWXDOYGAKC"},
{480L, 25, 2, "589CDEGHIJ3KLM26NO4AP7FB1" "245789BCDE1GHIJ3KLM6NOAPF"}, {480L, 25, 2, "EHILMNPQRSCTUVBFWXDJYGOKA" "BDEGHIKLMNAPQRSCTUVFWXJYO"},
/* order 26 */ /* order 26 */
{156L, 26, 2, {156L, 26, 2,
"5O7Q92B4D6F8HAJCLENGPI1K3M" "21436587A9CBEDGFIHKJMLONQP"}, "EXGZIBKDMFOHQJSLUNWPYRATCV" "BADCFEHGJILKNMPORQTSVUXWZY"},
{12L, 26, 1, "6587A9CBEDGFIHKJMLONQP2143"}, {12L, 26, 1, "FEHGJILKNMPORQTSVUXWZYBADC"},
/* order 27 */
{18L, 27, 1, "53BC689IJKDE4GHOP7LMANRFQ12"},
{108L, 27, 2,
"54BC79AIJKEFGH1OPLM2N3RQ68D" "DI2LG5O67Q4NBCREF9A8JKMH1P3"},
{432L, 27, 2,
"51BC234IJK6789AOPDEFGHRLMNQ" "3E89PLM1GHRB7Q64NKIJFDA5O2C"},
{54L, 27, 2,
"54BC79AIJKEFGH1OPLM2N3RQ68D" "DR2LNKI67QA8P5OEFH1GBCM34J9"},
{11232L, 27, 3,
"51BC234IJK6789AOPDEFGHRLMNQ" "3689BDE1GHIJ2LM4N5OP7QACRFK"
"479ACEFGH1JKLM2N3OP5Q68RBDI"},
/* order 28 */
{84L, 28, 2,
"7S4BQ58F29CJ6DGNAHKRELO3IP1M" "5129346D78AHBCELFGIPJKMSNOQR"},
{12L, 28, 1, "589AC3DEG7HIKBLMOFPQRJ2S4N61"},
{84L, 28, 2,
"7S4BQ58F29CJ6DGNAHKRELO3IP1M" "5329176D4BAH8FELCJIPGNMSKRQO"},
{36L, 28, 2,
"976D4BAH8FELCJIPGNMSKRQ5O321" "649A78DEBCHIFGLMJKPQNOS2R153"},
/* order 29 */
{28L, 29, 1, "56789ABCDEFGHIJKLMNOPQRST1234"},
/* order 30 */
{24L, 30, 2,
"LHQ7NOTDERSA9JK6UGF1PBCM34I285" "BFHIL3NO5Q78RSATDE6UG9JKCM1P24"},
{40L, 30, 2,
"DU4JOA89PS2GEFT56MKL7BCRQ1HI3N" "BQGHT36MNL78CRS1DEIU54JKOA9P2F"},
{120L, 30, 2,
"DS4JU589POABEFT2GHKL76MNQ1CR3I" "215634ABC789GHIDEFMNOJKLRSPQUT"},
{8L, 30, 1, "HEMNJKCRS9PQIU5FT3OABL782G1D64"},
/* order 31 */
{30L, 31, 1, "56789ABCDEFGHIJKLMNOPQRSTUV1234"},
}; };
static const struct groups groups[] = { static const struct groups groups[] = {
{0, NULL}, /* trivial case: 0 */ {0, NULL}, /* trivial case: 0 */
{0, NULL}, /* trivial case: 1 */ {0, NULL}, /* trivial case: 1 */
{1, groupdata + 0}, /* 2 */ {1, groupdata + 0}, /* 2 */
{1, groupdata + 1}, /* 3 */ {1, groupdata + 1}, /* 3 */
{2, groupdata + 2}, /* 4 */ {2, groupdata + 2}, /* 4 */
{1, groupdata + 4}, /* 5 */ {1, groupdata + 4}, /* 5 */
{2, groupdata + 5}, /* 6 */ {2, groupdata + 5}, /* 6 */
{1, groupdata + 7}, /* 7 */ {1, groupdata + 7}, /* 7 */
{5, groupdata + 8}, /* 8 */ {5, groupdata + 8}, /* 8 */
{2, groupdata + 13}, /* 9 */ {2, groupdata + 13}, /* 9 */
{2, groupdata + 15}, /* 10 */ {2, groupdata + 15}, /* 10 */
{1, groupdata + 17}, /* 11 */ {1, groupdata + 17}, /* 11 */
{5, groupdata + 18}, /* 12 */ {5, groupdata + 18}, /* 12 */
{1, groupdata + 23}, /* 13 */ {1, groupdata + 23}, /* 13 */
{2, groupdata + 24}, /* 14 */ {2, groupdata + 24}, /* 14 */
{1, groupdata + 26}, /* 15 */ {1, groupdata + 26}, /* 15 */
{14, groupdata + 27}, /* 16 */ {14, groupdata + 27}, /* 16 */
{1, groupdata + 41}, /* 17 */ {1, groupdata + 41}, /* 17 */
{5, groupdata + 42}, /* 18 */ {5, groupdata + 42}, /* 18 */
{1, groupdata + 47}, /* 19 */ {1, groupdata + 47}, /* 19 */
{5, groupdata + 48}, /* 20 */ {5, groupdata + 48}, /* 20 */
{2, groupdata + 53}, /* 21 */ {2, groupdata + 53}, /* 21 */
{2, groupdata + 55}, /* 22 */ {2, groupdata + 55}, /* 22 */
{1, groupdata + 57}, /* 23 */ {1, groupdata + 57}, /* 23 */
{15, groupdata + 58}, /* 24 */ {15, groupdata + 58}, /* 24 */
{2, groupdata + 73}, /* 25 */ {2, groupdata + 73}, /* 25 */
{2, groupdata + 75}, /* 26 */ {2, groupdata + 75}, /* 26 */
{5, groupdata + 77}, /* 27 */
{4, groupdata + 82}, /* 28 */
{1, groupdata + 86}, /* 29 */
{4, groupdata + 87}, /* 30 */
{1, groupdata + 91}, /* 31 */
}; };
/* ----- data generated by group.gap ends ----- */ /* ----- data generated by group.gap ends ----- */
@ -583,10 +589,12 @@ static char *new_game_desc(game_params *params, random_state *rs,
* I tested it using the following shell command: * I tested it using the following shell command:
for d in t n h x u; do for d in t n h x u; do
for i in {3..9}; do for id in '' i; do
echo ./group --generate 1 ${i}d${d} for i in {3..9}; do
perl -e 'alarm 30; exec @ARGV' ./group --generate 5 ${i}d${d} >/dev/null \ echo -n "./group --generate 1 ${i}d${d}${id}: "
|| echo broken perl -e 'alarm 30; exec @ARGV' \
./group --generate 1 ${i}d${d}${id} >/dev/null && echo ok
done
done done
done done
@ -594,12 +602,16 @@ done
* _out_, so as to detect exceptions that should be removed as * _out_, so as to detect exceptions that should be removed as
* well as those which should be added. * well as those which should be added.
*/ */
if (w <= 9 && diff == DIFF_EXTREME) #if 0
if (w < 5 && diff == DIFF_UNREASONABLE)
diff--; diff--;
if (w <= 6 && diff == DIFF_HARD) if ((w < 5 || ((w == 6 || w == 8) && params->id)) && diff == DIFF_EXTREME)
diff--; diff--;
if (w <= 4 && diff > DIFF_TRIVIAL) if ((w < 6 || (w == 6 && params->id)) && diff == DIFF_HARD)
diff = DIFF_TRIVIAL; diff--;
if ((w < 4 || (w == 4 && params->id)) && diff == DIFF_NORMAL)
diff--;
#endif
grid = snewn(a, digit); grid = snewn(a, digit);
soln = snewn(a, digit); soln = snewn(a, digit);
@ -640,11 +652,11 @@ done
* Apply each group generator to row, constructing a * Apply each group generator to row, constructing a
* new row. * new row.
*/ */
nri = FROMCHAR(gen[row[0]-1]); /* which row is it? */ nri = gen[row[0]-1] - 'A' + 1; /* which row is it? */
newrow = soln + (nri-1)*w; newrow = soln + (nri-1)*w;
if (!newrow[0]) { /* not done yet */ if (!newrow[0]) { /* not done yet */
for (k = 0; k < w; k++) for (k = 0; k < w; k++)
newrow[k] = FROMCHAR(gen[row[k]-1]); newrow[k] = gen[row[k]-1] - 'A' + 1;
grid[qt++] = nri; grid[qt++] = nri;
} }
} }
@ -680,7 +692,7 @@ done
} }
memcpy(soln2, grid, a); memcpy(soln2, grid, a);
if (solver(w, soln2, diff) > diff) if (solver(params, soln2, diff) > diff)
continue; /* go round again if that didn't work */ continue; /* go round again if that didn't work */
} }
@ -694,7 +706,7 @@ done
for (i = 0; i < k; i++) { for (i = 0; i < k; i++) {
memcpy(soln2, grid, a); memcpy(soln2, grid, a);
soln2[indices[i]] = 0; soln2[indices[i]] = 0;
if (solver(w, soln2, diff) <= diff) if (solver(params, soln2, diff) <= diff)
grid[indices[i]] = 0; grid[indices[i]] = 0;
} }
@ -703,7 +715,7 @@ done
*/ */
if (diff > 0) { if (diff > 0) {
memcpy(soln2, grid, a); memcpy(soln2, grid, a);
if (solver(w, soln2, diff-1) < diff) if (solver(params, soln2, diff-1) < diff)
continue; /* go round and try again */ continue; /* go round and try again */
} }
@ -727,7 +739,7 @@ done
*aux = snewn(a+2, char); *aux = snewn(a+2, char);
(*aux)[0] = 'S'; (*aux)[0] = 'S';
for (i = 0; i < a; i++) for (i = 0; i < a; i++)
(*aux)[i+1] = TOCHAR(soln[i]); (*aux)[i+1] = TOCHAR(soln[i], params->id);
(*aux)[a+1] = '\0'; (*aux)[a+1] = '\0';
sfree(grid); sfree(grid);
@ -873,7 +885,7 @@ static char *solve_game(game_state *state, game_state *currstate,
soln = snewn(a, digit); soln = snewn(a, digit);
memcpy(soln, state->grid, a*sizeof(digit)); memcpy(soln, state->grid, a*sizeof(digit));
ret = solver(w, soln, DIFFCOUNT-1); ret = solver(&state->par, soln, DIFFCOUNT-1);
if (ret == diff_impossible) { if (ret == diff_impossible) {
*error = "No solution exists for this puzzle"; *error = "No solution exists for this puzzle";
@ -885,7 +897,7 @@ static char *solve_game(game_state *state, game_state *currstate,
out = snewn(a+2, char); out = snewn(a+2, char);
out[0] = 'S'; out[0] = 'S';
for (i = 0; i < a; i++) for (i = 0; i < a; i++)
out[i+1] = TOCHAR(soln[i]); out[i+1] = TOCHAR(soln[i], state->par.id);
out[a+1] = '\0'; out[a+1] = '\0';
} }
@ -914,7 +926,7 @@ static char *game_text_format(game_state *state)
if (d == 0) { if (d == 0) {
ch = '.'; ch = '.';
} else { } else {
ch = TOCHAR(d); ch = TOCHAR(d, state->par.id);
} }
*p++ = ch; *p++ = ch;
@ -1022,6 +1034,7 @@ static void game_changed_state(game_ui *ui, game_state *oldstate,
#define EF_LATIN (1UL << (6*EF_DIGIT_SHIFT)) #define EF_LATIN (1UL << (6*EF_DIGIT_SHIFT))
struct game_drawstate { struct game_drawstate {
game_params par;
int w, tilesize; int w, tilesize;
int started; int started;
long *tiles, *pencil, *errors; long *tiles, *pencil, *errors;
@ -1168,9 +1181,9 @@ static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds,
} }
if (ui->hshow && if (ui->hshow &&
((ISCHAR(button) && FROMCHAR(button) <= w) || ((ISCHAR(button) && FROMCHAR(button, state->par.id) <= w) ||
button == CURSOR_SELECT2 || button == '\b')) { button == CURSOR_SELECT2 || button == '\b')) {
int n = FROMCHAR(button); int n = FROMCHAR(button, state->par.id);
if (button == CURSOR_SELECT2 || button == '\b') if (button == CURSOR_SELECT2 || button == '\b')
n = 0; n = 0;
@ -1212,11 +1225,11 @@ static game_state *execute_move(game_state *from, char *move)
ret->completed = ret->cheated = TRUE; ret->completed = ret->cheated = TRUE;
for (i = 0; i < a; i++) { for (i = 0; i < a; i++) {
if (!ISCHAR(move[i+1]) || FROMCHAR(move[i+1]) > w) { if (!ISCHAR(move[i+1]) || FROMCHAR(move[i+1], from->par.id) > w) {
free_game(ret); free_game(ret);
return NULL; return NULL;
} }
ret->grid[i] = FROMCHAR(move[i+1]); ret->grid[i] = FROMCHAR(move[i+1], from->par.id);
ret->pencil[i] = 0; ret->pencil[i] = 0;
} }
@ -1319,6 +1332,7 @@ static game_drawstate *game_new_drawstate(drawing *dr, game_state *state)
int i; int i;
ds->w = w; ds->w = w;
ds->par = state->par; /* structure copy */
ds->tilesize = 0; ds->tilesize = 0;
ds->started = FALSE; ds->started = FALSE;
ds->tiles = snewn(a, long); ds->tiles = snewn(a, long);
@ -1377,7 +1391,7 @@ static void draw_tile(drawing *dr, game_drawstate *ds, int x, int y, long tile,
/* new number needs drawing? */ /* new number needs drawing? */
if (tile & DF_DIGIT_MASK) { if (tile & DF_DIGIT_MASK) {
str[1] = '\0'; str[1] = '\0';
str[0] = TOCHAR(tile & DF_DIGIT_MASK); str[0] = TOCHAR(tile & DF_DIGIT_MASK, ds->par.id);
draw_text(dr, tx + TILESIZE/2, ty + TILESIZE/2, draw_text(dr, tx + TILESIZE/2, ty + TILESIZE/2,
FONT_VARIABLE, TILESIZE/2, ALIGN_VCENTRE | ALIGN_HCENTRE, FONT_VARIABLE, TILESIZE/2, ALIGN_VCENTRE | ALIGN_HCENTRE,
(error & EF_LATIN) ? COL_ERROR : (error & EF_LATIN) ? COL_ERROR :
@ -1388,7 +1402,8 @@ static void draw_tile(drawing *dr, game_drawstate *ds, int x, int y, long tile,
int b = (error >> (EF_LEFT_SHIFT+1*EF_DIGIT_SHIFT))&EF_DIGIT_MASK; int b = (error >> (EF_LEFT_SHIFT+1*EF_DIGIT_SHIFT))&EF_DIGIT_MASK;
int c = (error >> (EF_LEFT_SHIFT ))&EF_DIGIT_MASK; int c = (error >> (EF_LEFT_SHIFT ))&EF_DIGIT_MASK;
char buf[10]; char buf[10];
sprintf(buf, "(%c%c)%c", TOCHAR(a), TOCHAR(b), TOCHAR(c)); sprintf(buf, "(%c%c)%c", TOCHAR(a, ds->par.id),
TOCHAR(b, ds->par.id), TOCHAR(c, ds->par.id));
draw_text(dr, tx + TILESIZE/2, ty + TILESIZE/6, draw_text(dr, tx + TILESIZE/2, ty + TILESIZE/6,
FONT_VARIABLE, TILESIZE/6, ALIGN_VCENTRE | ALIGN_HCENTRE, FONT_VARIABLE, TILESIZE/6, ALIGN_VCENTRE | ALIGN_HCENTRE,
COL_ERROR, buf); COL_ERROR, buf);
@ -1398,7 +1413,8 @@ static void draw_tile(drawing *dr, game_drawstate *ds, int x, int y, long tile,
int b = (error >> (EF_RIGHT_SHIFT+1*EF_DIGIT_SHIFT))&EF_DIGIT_MASK; int b = (error >> (EF_RIGHT_SHIFT+1*EF_DIGIT_SHIFT))&EF_DIGIT_MASK;
int c = (error >> (EF_RIGHT_SHIFT ))&EF_DIGIT_MASK; int c = (error >> (EF_RIGHT_SHIFT ))&EF_DIGIT_MASK;
char buf[10]; char buf[10];
sprintf(buf, "%c(%c%c)", TOCHAR(a), TOCHAR(b), TOCHAR(c)); sprintf(buf, "%c(%c%c)", TOCHAR(a, ds->par.id),
TOCHAR(b, ds->par.id), TOCHAR(c, ds->par.id));
draw_text(dr, tx + TILESIZE/2, ty + TILESIZE - TILESIZE/6, draw_text(dr, tx + TILESIZE/2, ty + TILESIZE - TILESIZE/6,
FONT_VARIABLE, TILESIZE/6, ALIGN_VCENTRE | ALIGN_HCENTRE, FONT_VARIABLE, TILESIZE/6, ALIGN_VCENTRE | ALIGN_HCENTRE,
COL_ERROR, buf); COL_ERROR, buf);
@ -1477,7 +1493,7 @@ static void draw_tile(drawing *dr, game_drawstate *ds, int x, int y, long tile,
int dx = j % pw, dy = j / pw; int dx = j % pw, dy = j / pw;
str[1] = '\0'; str[1] = '\0';
str[0] = TOCHAR(i); str[0] = TOCHAR(i, ds->par.id);
draw_text(dr, pl + fontsize * (2*dx+1) / 2, draw_text(dr, pl + fontsize * (2*dx+1) / 2,
pt + fontsize * (2*dy+1) / 2, pt + fontsize * (2*dy+1) / 2,
FONT_VARIABLE, fontsize, FONT_VARIABLE, fontsize,
@ -1521,7 +1537,7 @@ static void game_redraw(drawing *dr, game_drawstate *ds, game_state *oldstate,
for (x = 0; x < w; x++) { for (x = 0; x < w; x++) {
char str[2]; char str[2];
str[1] = '\0'; str[1] = '\0';
str[0] = TOCHAR(x+1); str[0] = TOCHAR(x+1, ds->par.id);
draw_text(dr, COORD(x) + TILESIZE/2, BORDER + TILESIZE/2, draw_text(dr, COORD(x) + TILESIZE/2, BORDER + TILESIZE/2,
FONT_VARIABLE, TILESIZE/2, FONT_VARIABLE, TILESIZE/2,
ALIGN_VCENTRE | ALIGN_HCENTRE, COL_GRID, str); ALIGN_VCENTRE | ALIGN_HCENTRE, COL_GRID, str);
@ -1628,7 +1644,7 @@ static void game_print(drawing *dr, game_state *state, int tilesize)
for (x = 0; x < w; x++) { for (x = 0; x < w; x++) {
char str[2]; char str[2];
str[1] = '\0'; str[1] = '\0';
str[0] = TOCHAR(x+1); str[0] = TOCHAR(x+1, state->par.id);
draw_text(dr, BORDER+LEGEND + x*TILESIZE + TILESIZE/2, draw_text(dr, BORDER+LEGEND + x*TILESIZE + TILESIZE/2,
BORDER + TILESIZE/2, BORDER + TILESIZE/2,
FONT_VARIABLE, TILESIZE/2, FONT_VARIABLE, TILESIZE/2,
@ -1661,7 +1677,7 @@ static void game_print(drawing *dr, game_state *state, int tilesize)
if (state->grid[y*w+x]) { if (state->grid[y*w+x]) {
char str[2]; char str[2];
str[1] = '\0'; str[1] = '\0';
str[0] = TOCHAR(state->grid[y*w+x]); str[0] = TOCHAR(state->grid[y*w+x], state->par.id);
draw_text(dr, BORDER+LEGEND + x*TILESIZE + TILESIZE/2, draw_text(dr, BORDER+LEGEND + x*TILESIZE + TILESIZE/2,
BORDER+LEGEND + y*TILESIZE + TILESIZE/2, BORDER+LEGEND + y*TILESIZE + TILESIZE/2,
FONT_VARIABLE, TILESIZE/2, FONT_VARIABLE, TILESIZE/2,
@ -1769,7 +1785,7 @@ int main(int argc, char **argv)
solver_show_working = FALSE; solver_show_working = FALSE;
for (diff = 0; diff < DIFFCOUNT; diff++) { for (diff = 0; diff < DIFFCOUNT; diff++) {
memcpy(grid, s->grid, p->w * p->w); memcpy(grid, s->grid, p->w * p->w);
ret = solver(p->w, grid, diff); ret = solver(&s->par, grid, diff);
if (ret <= diff) if (ret <= diff)
break; break;
} }
@ -1788,7 +1804,7 @@ int main(int argc, char **argv)
} else { } else {
solver_show_working = really_show_working; solver_show_working = really_show_working;
memcpy(grid, s->grid, p->w * p->w); memcpy(grid, s->grid, p->w * p->w);
ret = solver(p->w, grid, diff); ret = solver(&s->par, grid, diff);
if (ret != diff) if (ret != diff)
printf("Puzzle is inconsistent\n"); printf("Puzzle is inconsistent\n");
else { else {

4
unfinished/group.gap
View File

@ -9,7 +9,7 @@ Print(" const struct group *groups;\n};\n\n");
Print("static const struct group groupdata[] = {\n"); Print("static const struct group groupdata[] = {\n");
offsets := [0]; offsets := [0];
offset := 0; offset := 0;
for n in [2..31] do for n in [2..26] do
Print(" /* order ", n, " */\n"); Print(" /* order ", n, " */\n");
for G in AllSmallGroups(n) do for G in AllSmallGroups(n) do
@ -72,7 +72,7 @@ for n in [2..31] do
fi; fi;
sep := "\\0"; sep := "\\0";
for i in ListPerm(x) do for i in ListPerm(x) do
chars := "123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; chars := "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
Add(s, chars[i]); Add(s, chars[i]);
od; od;
od; od;