add some solution

1 files changed, 39 insertions, 0 deletions

diff --git a/Computer_Science/leetcode/61-rotate_list.c b/Computer_Science/leetcode/61-rotate_list.c
new file mode 100644
index 0000000..8cbbe17
--- /dev/null
+++ b/Computer_Science/leetcode/61-rotate_list.c
@@ -0,0 +1,39 @@
+#include <stdio.h>
+
+/**
+ * Definition for singly-linked list.
+ * struct ListNode {
+ *     int val;
+ *     struct ListNode *next;
+ * };
+ */
+
+struct ListNode {
+	int val;
+	struct ListNode *next;
+};
+	
+struct ListNode* rotateRight(struct ListNode* head, int k)
+{
+	int i;
+	int length = 1;
+	struct ListNode* p = head;
+
+	if(p == NULL) return head;
+	
+	for(; p->next != NULL; p = p->next)
+		length++;
+
+	p->next = head;
+
+	for(i = 0; i < length - k % length; i++)
+		p = p->next;
+	head = p->next;
+	p->next = NULL;
+
+	return head;
+}
+
+int main()
+{
+}