From ba8e46f241effbb7916bbe777d51c35ad529b4f1 Mon Sep 17 00:00:00 2001
From: Steve2020 <841532108@qq.com>
Date: Wed, 12 Jan 2022 14:32:40 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=EF=BC=88=E9=9D=A2=E8=AF=95?=
 =?UTF-8?q?=E9=A2=9802.07.=E9=93=BE=E8=A1=A8=E7=9B=B8=E4=BA=A4.md=EF=BC=89?=
 =?UTF-8?q?=EF=BC=9A=E5=A2=9E=E5=8A=A0typescript=E7=89=88=E6=9C=AC?=
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---
 problems/面试题02.07.链表相交.md | 37 +++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/problems/面试题02.07.链表相交.md b/problems/面试题02.07.链表相交.md
index e8198aa0..dd91f069 100644
--- a/problems/面试题02.07.链表相交.md
+++ b/problems/面试题02.07.链表相交.md
@@ -239,6 +239,43 @@ var getIntersectionNode = function(headA, headB) {
 };
 ```
 
+TypeScript：
+
+```typescript
+function getIntersectionNode(headA: ListNode | null, headB: ListNode | null): ListNode | null {
+  let sizeA: number = 0,
+    sizeB: number = 0;
+  let curA: ListNode | null = headA,
+    curB: ListNode | null = headB;
+  while (curA) {
+    sizeA++;
+    curA = curA.next;
+  }
+  while (curB) {
+    sizeB++;
+    curB = curB.next;
+  }
+  curA = headA;
+  curB = headB;
+  if (sizeA < sizeB) {
+    [sizeA, sizeB] = [sizeB, sizeA];
+    [curA, curB] = [curB, curA];
+  }
+  let gap = sizeA - sizeB;
+  while (gap-- && curA) {
+    curA = curA.next;
+  }
+  while (curA && curB) {
+    if (curA === curB) {
+      return curA;
+    }
+    curA = curA.next;
+    curB = curB.next;
+  }
+  return null;
+};
+```
+
 C：
 
 ```c