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1.快速排序.c

@@ -0,0 +1,66 @@
+#include <stdio.h>
+#include <stdlib.h>
+ 
+#define  N  10
+ 
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+int quick_sort(int *a, int low, int high)
+{
+ int i = low; //<2F><>һλ
+ int j = high; //<2F><><EFBFBD>һλ
+ int key = a[i]; //<2F><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>׼ֵ-- <20><><EFBFBD>ҵ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>׼ֵ
+ 
+ while (i < j)
+ {     
+  while(i < j && a[j] >= key)
+  {
+   j--;
+  }
+  a[i] = a[j]; 
+ 
+  while(i < j && a[i] <= key)
+  {
+   i++;
+  }
+  a[j] = a[i];
+ }
+ a[i] = key;
+ if (i-1 > low) 
+ {
+  quick_sort(a, low, i-1);
+ }
+ 
+ if (i+1 < high)
+ {
+  quick_sort(a, i+1, high);
+ }
+ 
+ return 0;
+} 
+ 
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+int main(int argc, const char *argv[])
+{
+        //<2F><><EFBFBD><EFBFBD><EFBFBD>˸<EFBFBD><CBB8><EFBFBD><EFBFBD>飬<EFBFBD><E9A3AC>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʮ<EFBFBD><CAAE><EFBFBD><EFBFBD>N <20>궨<EFBFBD><EAB6A8><EFBFBD><EFBFBD> 10 
+        int a[N] = {1, 3, 5, 7, 9, 2, 4, 6, 8, 0}; 
+ 
+ int i = 0;
+ printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ:\n");
+ for(i = 0; i < N; i++)
+ {
+  printf("%d ", a[i]);
+ }
+ putchar(10);//<2F><><EFBFBD><EFBFBD>
+ 
+ //<2F><><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD>
+ quick_sort(a, 0, N-1);//<2F><><EFBFBD>飬0 <20><>9
+ 
+ printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD>:\n");
+ for(i = 0; i < N; i++)
+ {
+  printf("%d ", a[i]);
+ }
+ putchar(10);
+ 
+ return 0;
+}