2022-03-27 20:56:26 +08:00
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<p>给你一个由数字和运算符组成的字符串 <code>expression</code> ，按不同优先级组合数字和运算符，计算并返回所有可能组合的结果。你可以 <strong>按任意顺序</strong> 返回答案。</p>
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2023-12-09 18:42:21 +08:00
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<p>生成的测试用例满足其对应输出值符合 32 位整数范围，不同结果的数量不超过 <code>10<sup>4</sup></code> 。</p>
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2022-03-27 20:56:26 +08:00
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<p> </p>
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<p><strong>示例 1：</strong></p>
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<pre>
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<strong>输入：</strong>expression = "2-1-1"
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<strong>输出：</strong>[0,2]
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<strong>解释：</strong>
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((2-1)-1) = 0
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(2-(1-1)) = 2
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</pre>
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<p><strong>示例 2：</strong></p>
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<pre>
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<strong>输入：</strong>expression = "2*3-4*5"
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<strong>输出：</strong>[-34,-14,-10,-10,10]
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<strong>解释：</strong>
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(2*(3-(4*5))) = -34
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((2*3)-(4*5)) = -14
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((2*(3-4))*5) = -10
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(2*((3-4)*5)) = -10
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(((2*3)-4)*5) = 10
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</pre>
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<p> </p>
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<p><strong>提示：</strong></p>
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<ul>
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<li><code>1 <= expression.length <= 20</code></li>
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<li><code>expression</code> 由数字和算符 <code>'+'</code>、<code>'-'</code> 和 <code>'*'</code> 组成。</li>
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<li>输入表达式中的所有整数值在范围 <code>[0, 99]</code> </li>
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</ul>
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