2022-09-03 13:58:20 -04:00
|
|
|
#include <stdio.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <stdint.h>
|
2022-09-10 14:03:23 -04:00
|
|
|
#include "boilerplate.h"
|
2022-09-03 13:58:20 -04:00
|
|
|
|
2022-09-10 14:03:23 -04:00
|
|
|
uint32_t
|
2022-09-10 14:16:43 -04:00
|
|
|
rawWC,
|
|
|
|
fiveUniqWC
|
2022-09-10 14:03:23 -04:00
|
|
|
;
|
2022-09-03 15:23:40 -04:00
|
|
|
|
2022-09-10 14:03:23 -04:00
|
|
|
void findWords(signature* sigs, uint32_t len) {
|
|
|
|
for (uint32_t i1 = 0; i1 < len; i1++) {
|
|
|
|
uint32_t a = sigs[i1].sign;
|
2022-09-03 15:23:40 -04:00
|
|
|
|
2022-09-10 14:03:23 -04:00
|
|
|
for (uint32_t i2 = i1+1; i2 < len; i2++) {
|
|
|
|
uint32_t b = sigs[i2].sign;
|
|
|
|
if (a & b) { continue; }
|
|
|
|
uint32_t ab = a | b;
|
|
|
|
PRINT2
|
2022-09-03 15:23:40 -04:00
|
|
|
|
2022-09-10 14:03:23 -04:00
|
|
|
for (uint32_t i3 = i2+1; i3 < len; i3++) {
|
|
|
|
uint32_t c = sigs[i3].sign;
|
|
|
|
if (ab & c) { continue; }
|
|
|
|
uint32_t abc = ab | c;
|
|
|
|
PRINT3
|
2022-09-03 15:23:40 -04:00
|
|
|
|
2022-09-10 14:03:23 -04:00
|
|
|
for (uint32_t i4 = i3+1; i4 < len; i4++) {
|
|
|
|
uint32_t d = sigs[i4].sign;
|
|
|
|
if (abc & d) { continue; }
|
|
|
|
uint32_t abcd = abc | d;
|
|
|
|
PRINT4
|
2022-09-03 13:58:20 -04:00
|
|
|
|
2022-09-10 14:03:23 -04:00
|
|
|
for (uint32_t i5 = i4+1; i5 < len; i5++) {
|
|
|
|
uint32_t e = sigs[i5].sign;
|
|
|
|
if (abcd & e) { continue; }
|
|
|
|
printf("%s, %s, %s, %s, %s\n", sigs[i1].word, sigs[i2].word, sigs[i3].word, sigs[i4].word, sigs[i5].word);
|
2022-09-03 15:23:40 -04:00
|
|
|
|
2022-09-10 14:03:23 -04:00
|
|
|
#if FIND_ONE
|
|
|
|
goto loopend;
|
|
|
|
#endif
|
2022-09-03 13:58:20 -04:00
|
|
|
|
2022-09-10 14:03:23 -04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#if FIND_ONE
|
|
|
|
loopend:
|
|
|
|
#endif
|
|
|
|
return;
|
2022-09-03 13:58:20 -04:00
|
|
|
}
|
|
|
|
|
2022-09-03 15:23:40 -04:00
|
|
|
signature* makeArray(FILE * f) {
|
2022-09-03 13:58:20 -04:00
|
|
|
signature* sigs = (signature*) calloc(WORDS, sizeof(signature));
|
|
|
|
char word[WORDLEN + sizeof(char)]; // 5 letters + \n
|
|
|
|
|
|
|
|
while (fread(word, sizeof(char), WORDLEN + sizeof(char), f) != 0) {
|
|
|
|
rawWC++;
|
|
|
|
// only assign sign so far, more efficient
|
|
|
|
uint32_t s = getsig(word);
|
|
|
|
if (s != 0) {
|
2022-09-03 15:23:40 -04:00
|
|
|
// no duplicate word letters in word
|
2022-09-03 13:58:20 -04:00
|
|
|
sigs[fiveUniqWC].word = strndup(word, 5);
|
|
|
|
sigs[fiveUniqWC].sign = s;
|
|
|
|
fiveUniqWC++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return sigs;
|
|
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char * argv[]) {
|
2022-09-03 15:23:40 -04:00
|
|
|
#if TIME_SECTIONS
|
|
|
|
clock_t prog_start = clock();
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if ! ASSUME_SAFE
|
2022-09-03 13:58:20 -04:00
|
|
|
if (argc != 2) {
|
|
|
|
fprintf(stderr, "usage: %s file\n", argv[0]);
|
|
|
|
return 2;
|
|
|
|
}
|
2022-09-03 15:23:40 -04:00
|
|
|
#endif
|
|
|
|
|
2022-09-03 13:58:20 -04:00
|
|
|
FILE * f = fopen(argv[1], "r");
|
2022-09-03 15:23:40 -04:00
|
|
|
|
|
|
|
#if ! ASSUME_SAFE
|
2022-09-03 13:58:20 -04:00
|
|
|
if (f == NULL) {
|
2022-09-10 14:03:23 -04:00
|
|
|
fprintf(stderr, "%s, %s, no such file or directory\n", argv[0], argv[1]);
|
2022-09-03 13:58:20 -04:00
|
|
|
return 2;
|
|
|
|
}
|
2022-09-03 15:23:40 -04:00
|
|
|
#endif
|
|
|
|
|
|
|
|
START_TIME("making array")
|
|
|
|
signature* sigs = makeArray(f);
|
|
|
|
END_TIME
|
2022-09-03 13:58:20 -04:00
|
|
|
fclose(f);
|
|
|
|
|
2022-09-03 15:23:40 -04:00
|
|
|
#if PRINT_INTERMEDIATES
|
2022-09-10 14:03:23 -04:00
|
|
|
fprintf(stderr, "INTERMEDIATE: read %u words\n", rawWC);
|
|
|
|
fprintf(stderr, "INTERMEDIATE: kept %u words with 5 unique letters\n", fiveUniqWC);
|
2022-09-03 15:23:40 -04:00
|
|
|
#endif
|
2022-09-03 13:58:20 -04:00
|
|
|
|
2022-09-10 14:03:23 -04:00
|
|
|
#if DELETE
|
2022-09-03 15:23:40 -04:00
|
|
|
START_TIME("sorting")
|
2022-09-03 13:58:20 -04:00
|
|
|
qsort(sigs, fiveUniqWC, sizeof(signature), compare);
|
2022-09-03 15:23:40 -04:00
|
|
|
END_TIME
|
|
|
|
|
|
|
|
START_TIME("removing duplicates")
|
2022-09-10 14:16:43 -04:00
|
|
|
uint32_t cookedWC = rmdups(sigs, fiveUniqWC);
|
2022-09-03 15:23:40 -04:00
|
|
|
END_TIME
|
2022-09-10 14:03:23 -04:00
|
|
|
#else
|
2022-09-10 14:16:43 -04:00
|
|
|
uint32_t cookedWC = fiveUniqWC;
|
2022-09-03 13:58:20 -04:00
|
|
|
#endif
|
|
|
|
|
2022-09-03 15:23:40 -04:00
|
|
|
#if PRINT_INTERMEDIATES
|
2022-09-10 14:03:23 -04:00
|
|
|
fprintf(stderr, "INTERMEDIATE: ended with %u totally unique words\n", cookedWC);
|
2022-09-03 15:23:40 -04:00
|
|
|
#endif
|
2022-09-10 14:03:23 -04:00
|
|
|
START_TIME("finding words")
|
|
|
|
findWords(sigs, cookedWC);
|
2022-09-03 15:23:40 -04:00
|
|
|
END_TIME
|
|
|
|
|
|
|
|
#if TIME_SECTIONS
|
|
|
|
clock_t prog_end = clock();
|
2022-09-10 14:03:23 -04:00
|
|
|
fprintf(stderr, "%s took %fs total\n", argv[0], ((double)(prog_end - prog_start)) / CLOCKS_PER_SEC);
|
2022-09-03 13:58:20 -04:00
|
|
|
#endif
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|