+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+#include <publib.h>
+
typedef uint32_t AdjWord;
-#define PRADJ PRIx32
+#define PRADJ "08"PRIx32
static int n, m;
-static AdjWord adjmatrix[n];
+static AdjWord *adjmatrix;
static AdjWord adjall;
static double best;
-static AdjWord adjmatrix_best[n];
static void prep(void) {
adjall = ~((~(AdjWord)0) << m);
+ adjmatrix = xmalloc(sizeof(*adjmatrix)*n);
}
static int count_set_adj_bits(AdjWord w) {
- for (int j=0, total=0; j<m; j++)
+ int j, total;
+ for (j=0, total=0; j<m; j++)
total += !!(w & ((AdjWord)1 << j));
return total;
}
static void optimise(void) {
+ int i;
for (i=0; i<n; i++) {
printf("%"PRADJ" ", adjmatrix[i]);
double maxminsize = (double)m / count_set_adj_bits(adjmatrix[i]);
}
static void iterate_recurse(int i, AdjWord min) {
- if (i > n) {
+ if (i >= n) {
optimise();
return;
}
;
adjmatrix[i]++) {
iterate_recurse(i+1, adjmatrix[i]);
+ if (adjmatrix[i] == adjall)
+ return;
}
}