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2022-05-02 23:44:12 +08:00
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leetcode-cn/originData/target-sum.json
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@@ -12,7 +12,7 @@
"translatedContent": "<p>给你一个整数数组 <code>nums</code> 和一个整数 <code>target</code> 。</p>\n\n<p>向数组中的每个整数前添加 <code>'+'</code> 或 <code>'-'</code> ，然后串联起所有整数，可以构造一个 <strong>表达式</strong> ：</p>\n\n<ul>\n\t<li>例如，<code>nums = [2, 1]</code> ，可以在 <code>2</code> 之前添加 <code>'+'</code> ，在 <code>1</code> 之前添加 <code>'-'</code> ，然后串联起来得到表达式 <code>\"+2-1\"</code> 。</li>\n</ul>\n\n<p>返回可以通过上述方法构造的、运算结果等于 <code>target</code> 的不同 <strong>表达式</strong> 的数目。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>nums = [1,1,1,1,1], target = 3\n<strong>输出：</strong>5\n<strong>解释：</strong>一共有 5 种方法让最终目标和为 3 。\n-1 + 1 + 1 + 1 + 1 = 3\n+1 - 1 + 1 + 1 + 1 = 3\n+1 + 1 - 1 + 1 + 1 = 3\n+1 + 1 + 1 - 1 + 1 = 3\n+1 + 1 + 1 + 1 - 1 = 3\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>nums = [1], target = 1\n<strong>输出：</strong>1\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 <= nums.length <= 20</code></li>\n\t<li><code>0 <= nums[i] <= 1000</code></li>\n\t<li><code>0 <= sum(nums[i]) <= 1000</code></li>\n\t<li><code>-1000 <= target <= 1000</code></li>\n</ul>\n",
"isPaidOnly": false,
"difficulty": "Medium",
"likes": 1136,
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"similarQuestions": "[{\"title\": \"Expression Add Operators\", \"titleSlug\": \"expression-add-operators\", \"difficulty\": \"Hard\", \"translatedTitle\": \"\\u7ed9\\u8868\\u8fbe\\u5f0f\\u6dfb\\u52a0\\u8fd0\\u7b97\\u7b26\"}]",
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