add 2010

code_circle_leftmove_2010.cpp

@@ -0,0 +1,25 @@
+#include<stdio.h>
+#include<stdlib.h>
+
+void reverse(int a[], int start, int end) {
+    //逆置start～end之间的所有数
+    int i = 0;
+    while (start + i < end - i) {
+        int tmp = a[start + i];
+        a[start + i] = a[end - i];
+        a[end - i] = tmp;
+        i++;
+    }
+}
+
+void move(int a[], int p, int length) {
+    reverse(a, 0, p - 1);
+    reverse(a, p, length - 1);
+    reverse(a, 0, length - 1);
+}
+
+int main() {
+    int a[] = { 1,2,3,4,5,6,7,8,9,10 };
+    move(a, 7, 10);
+    return 0;
+}