- initial import

git-svn-id: http://moon:8086/svn/mips@1 a8ebac50-d88d-4704-bea3-6648445a41b3
2014-07-20 15:01:37 +00:00
commit 26291bca3d
1549 changed files with 3997969 additions and 0 deletions
@@ -0,0 +1,36 @@
+/* permutation generation */
+
+#include <stdio.h>
+
+#define N 5
+
+int val[N], id;
+
+writeperm() {
+  int i;
+
+  for(i=0; i<N; i++) printf("%d ",val[i]);
+  printf("\n");
+}
+
+
+main() {
+  int i;
+  for(i=0; i<N; i++) val[i] = 0;
+  id = -1;
+  visit(0);
+}
+
+visit(k)
+int k;
+{
+  int t;
+
+  id++;
+  val[k] = id;
+  if (id == N-1) writeperm();
+  for(t=0; t<N; t++)
+    if( val[t] == 0) visit(t);
+  id--;
+  val[k] = 0;
+}