- 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 +1,60 @@
+/* quick sort */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define N 10000
+
+int a[N];
+
+rnum() {
+  return( rand()%N );
+}
+
+initran() {
+  int i;
+  for(i=0; i<N; i++)
+    a[i] = rnum();
+}
+
+qsort2(l,r)
+int l,r;
+{
+  int v,t,i,j;
+
+  if ( r>l ) {
+    v = a[r];
+    i = l-1;
+    j = r;
+    do {
+      do i++; while (a[i] < v);
+      do j--; while (a[j] > v);
+      t = a[i];
+      a[i] = a[j];
+      a[j] = t;
+    } while( j > i);
+    a[j] = a[i];
+    a[i] = a[r];
+    a[r] = t;
+    qsort2(l,i-1);
+    qsort2(i+1,r);
+  }
+}
+
+show(n)
+int n;
+{
+  int i;
+  for(i=0; i<n; i++) printf("%d ",a[i]);
+  printf("\n");
+}
+
+main() {
+	while(1)
+	{
+  initran();
+  qsort2(0,N);
+  show(N);
+}
+}
+