From b9b7c1530abf7a4b6b68b0f732b5a69cbaae772c Mon Sep 17 00:00:00 2001
From: Steve2020 <841532108@qq.com>
Date: Wed, 4 May 2022 23:48:12 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=EF=BC=880494.=E7=9B=AE?=
 =?UTF-8?q?=E6=A0=87=E5=92=8C.md=EF=BC=89=EF=BC=9A=E5=A2=9E=E5=8A=A0typesc?=
 =?UTF-8?q?ript=E7=89=88=E6=9C=AC?=
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---
 problems/0494.目标和.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/problems/0494.目标和.md b/problems/0494.目标和.md
index 99b76834..8ce1f6f1 100644
--- a/problems/0494.目标和.md
+++ b/problems/0494.目标和.md
@@ -351,6 +351,25 @@ const findTargetSumWays = (nums, target) => {
 };
 ```
 
+TypeScript：
+
+```typescript
+function findTargetSumWays(nums: number[], target: number): number {
+    const sum: number = nums.reduce((pre, cur) => pre + cur);
+    if (Math.abs(target) > sum) return 0;
+    if ((target + sum) % 2 === 1) return 0;
+    const bagSize: number = (target + sum) / 2;
+    const dp: number[] = new Array(bagSize + 1).fill(0);
+    dp[0] = 1;
+    for (let i = 0; i < nums.length; i++) {
+        for (let j = bagSize; j >= nums[i]; j--) {
+            dp[j] += dp[j - nums[i]];
+        }
+    }
+    return dp[bagSize];
+};
+```
+
 
 
 -----------------------