{ "data": { "question": { "questionId": "241", "questionFrontendId": "241", "categoryTitle": "Algorithms", "boundTopicId": 1764, "title": "Different Ways to Add Parentheses", "titleSlug": "different-ways-to-add-parentheses", "content": "
Given a string expression
of numbers and operators, return all possible results from computing all the different possible ways to group numbers and operators. You may return the answer in any order.
The test cases are generated such that the output values fit in a 32-bit integer and the number of different results does not exceed 104
.
\n
Example 1:
\n\n\nInput: expression = "2-1-1"\nOutput: [0,2]\nExplanation:\n((2-1)-1) = 0 \n(2-(1-1)) = 2\n\n\n
Example 2:
\n\n\nInput: expression = "2*3-4*5"\nOutput: [-34,-14,-10,-10,10]\nExplanation:\n(2*(3-(4*5))) = -34 \n((2*3)-(4*5)) = -14 \n((2*(3-4))*5) = -10 \n(2*((3-4)*5)) = -10 \n(((2*3)-4)*5) = 10\n\n\n
\n
Constraints:
\n\n1 <= expression.length <= 20
expression
consists of digits and the operator '+'
, '-'
, and '*'
.[0, 99]
.'-'
or '+'
denoting the sign.给你一个由数字和运算符组成的字符串 expression
,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 按任意顺序 返回答案。
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 104
。
\n\n
示例 1:
\n\n\n输入:expression = \"2-1-1\"\n输出:[0,2]\n解释:\n((2-1)-1) = 0 \n(2-(1-1)) = 2\n\n\n
示例 2:
\n\n\n输入:expression = \"2*3-4*5\"\n输出:[-34,-14,-10,-10,10]\n解释:\n(2*(3-(4*5))) = -34 \n((2*3)-(4*5)) = -14 \n((2*(3-4))*5) = -10 \n(2*((3-4)*5)) = -10 \n(((2*3)-4)*5) = 10\n\n\n
\n\n
提示:
\n\n1 <= expression.length <= 20
expression
由数字和算符 '+'
、'-'
和 '*'
组成。[0, 99]
'-'
或 '+'
表示符号。\\u7248\\u672c\\uff1a \\u7f16\\u8bd1\\u65f6\\uff0c\\u5c06\\u4f1a\\u91c7\\u7528 \\u4e3a\\u4e86\\u4f7f\\u7528\\u65b9\\u4fbf\\uff0c\\u5927\\u90e8\\u5206\\u6807\\u51c6\\u5e93\\u7684\\u5934\\u6587\\u4ef6\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8\\u5bfc\\u5165\\u3002<\\/p>\"],\"java\":[\"Java\",\" \\u7248\\u672c\\uff1a \\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u6807\\u51c6\\u5e93\\u7684\\u5934\\u6587\\u4ef6\\u5df2\\u88ab\\u5bfc\\u5165\\u3002<\\/p>\\r\\n\\r\\n \\u5305\\u542b Pair \\u7c7b: https:\\/\\/docs.oracle.com\\/javase\\/8\\/javafx\\/api\\/javafx\\/util\\/Pair.html <\\/p>\"],\"python\":[\"Python\",\" \\u7248\\u672c\\uff1a \\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u5e38\\u7528\\u5e93\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8 \\u5bfc\\u5165\\uff0c\\u5982\\uff1aarray<\\/a>, bisect<\\/a>, 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"book": null,
"isSubscribed": false,
"isDailyQuestion": false,
"dailyRecordStatus": null,
"editorType": "CKEDITOR",
"ugcQuestionId": null,
"style": "LEETCODE",
"exampleTestcases": "\"2-1-1\"\n\"2*3-4*5\"",
"__typename": "QuestionNode"
}
}
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