leetcode-problemset/leetcode-cn/originData/fraction-addition-and-subtraction.json

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            "title": "Fraction Addition and Subtraction",
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            "content": "<p>Given a string <code>expression</code> representing an expression of fraction addition and subtraction, return the calculation result in string format.</p>\n\n<p>The final result should be an <a href=\"https://en.wikipedia.org/wiki/Irreducible_fraction\" target=\"_blank\">irreducible fraction</a>. If your final result is an integer, change it to the format of a fraction that has a denominator <code>1</code>. So in this case, <code>2</code> should be converted to <code>2/1</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> expression = &quot;-1/2+1/2&quot;\n<strong>Output:</strong> &quot;0/1&quot;\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> expression = &quot;-1/2+1/2+1/3&quot;\n<strong>Output:</strong> &quot;1/3&quot;\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> expression = &quot;1/3-1/2&quot;\n<strong>Output:</strong> &quot;-1/6&quot;\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li>The input string only contains <code>&#39;0&#39;</code> to <code>&#39;9&#39;</code>, <code>&#39;/&#39;</code>, <code>&#39;+&#39;</code> and <code>&#39;-&#39;</code>. So does the output.</li>\n\t<li>Each fraction (input and output) has the format <code>&plusmn;numerator/denominator</code>. If the first input fraction or the output is positive, then <code>&#39;+&#39;</code> will be omitted.</li>\n\t<li>The input only contains valid <strong>irreducible fractions</strong>, where the <strong>numerator</strong> and <strong>denominator</strong> of each fraction will always be in the range <code>[1, 10]</code>. If the denominator is <code>1</code>, it means this fraction is actually an integer in a fraction format defined above.</li>\n\t<li>The number of given fractions will be in the range <code>[1, 10]</code>.</li>\n\t<li>The numerator and denominator of the <strong>final result</strong> are guaranteed to be valid and in the range of <strong>32-bit</strong> int.</li>\n</ul>\n",
            "translatedTitle": "分数加减运算",
            "translatedContent": "<p>给定一个表示分数加减运算的字符串&nbsp;<code>expression</code>&nbsp;，你需要返回一个字符串形式的计算结果。&nbsp;</p>\n\n<p>这个结果应该是不可约分的分数，即<a href=\"https://baike.baidu.com/item/%E6%9C%80%E7%AE%80%E5%88%86%E6%95%B0\" target=\"_blank\">最简分数</a>。&nbsp;如果最终结果是一个整数，例如&nbsp;<code>2</code>，你需要将它转换成分数形式，其分母为&nbsp;<code>1</code>。所以在上述例子中, <code>2</code>&nbsp;应该被转换为&nbsp;<code>2/1</code>。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例&nbsp;1:</strong></p>\n\n<pre>\n<strong>输入:</strong>&nbsp;<code>expression</code>&nbsp;= \"-1/2+1/2\"\n<strong>输出:</strong> \"0/1\"\n</pre>\n\n<p><strong>&nbsp;示例 2:</strong></p>\n\n<pre>\n<strong>输入:</strong>&nbsp;<code>expression</code>&nbsp;= \"-1/2+1/2+1/3\"\n<strong>输出:</strong> \"1/3\"\n</pre>\n\n<p><strong>示例 3:</strong></p>\n\n<pre>\n<strong>输入:</strong>&nbsp;<code>expression</code>&nbsp;= \"1/3-1/2\"\n<strong>输出:</strong> \"-1/6\"\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li>输入和输出字符串只包含&nbsp;<code>'0'</code> 到&nbsp;<code>'9'</code>&nbsp;的数字，以及&nbsp;<code>'/'</code>, <code>'+'</code> 和&nbsp;<code>'-'</code>。&nbsp;</li>\n\t<li>输入和输出分数格式均为&nbsp;<code>±分子/分母</code>。如果输入的第一个分数或者输出的分数是正数，则&nbsp;<code>'+'</code>&nbsp;会被省略掉。</li>\n\t<li>输入只包含合法的<strong>最简分数</strong>，每个分数的<strong>分子</strong>与<strong>分母</strong>的范围是&nbsp;&nbsp;[1,10]。&nbsp;如果分母是1，意味着这个分数实际上是一个整数。</li>\n\t<li>输入的分数个数范围是 [1,10]。</li>\n\t<li><strong>最终结果</strong>的分子与分母保证是 32 位整数范围内的有效整数。</li>\n</ul>\n",
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