add #160

jrtx0 · Oct 23, 2023 · 9044ab5 · 9044ab5
1 parent de6996e
commit 9044ab5
Showing 1 changed file with 29 additions and 0 deletions.
diff --git a/leetcode/160.相交链表.c b/leetcode/160.相交链表.c
@@ -0,0 +1,29 @@
+/**
+ * Definition for singly-linked list.
+ * struct ListNode {
+ *     int val;
+ *     struct ListNode *next;
+ * };
+ */
+struct ListNode *getIntersectionNode(struct ListNode *headA, struct ListNode *headB) {
+    struct ListNode *p = headA, *q = headB;
+
+    while (q)
+    {
+        while (p)
+        {
+            if (p -> val == q -> val)
+            {
+                if (p == q)
+                {
+                    return p;
+                }
+            }
+            p = p -> next;
+        }
+        p = headA;
+        q = q -> next;
+    }
+
+    return NULL;
+}