mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-09-03 22:42:52 +08:00
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leetcode/originData/[no content]popularity-percentage.json
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leetcode/originData/[no content]popularity-percentage.json
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"insert into Friends (user1, user2) values ('2', '6')",
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56
leetcode/originData/add-two-promises.json
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leetcode/originData/add-two-promises.json
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leetcode/originData/calculator-with-method-chaining.json
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leetcode/originData/calculator-with-method-chaining.json
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"title": "Calculator with Method Chaining",
|
||||
"titleSlug": "calculator-with-method-chaining",
|
||||
"content": "<p>Design a <code>Calculator</code> class. The class should provide the mathematical operations of addition, subtraction, multiplication, division, and exponentiation. It should also allow consecutive operations to be performed using method chaining. The <code>Calculator</code> class constructor should accept a number which serves as the initial value of <code>result</code>.</p>\n\n<p>Your <font face=\"monospace\"><code>Calculator</code> </font>class should have the following methods:</p>\n\n<ul>\n\t<li><code>add</code> - This method adds the given number <code>value</code> to the <code>result</code> and returns the updated <code>Calculator</code>.</li>\n\t<li><code>subtract</code> - This method subtracts the given number <code>value</code> from the <code>result</code> and returns the updated <code>Calculator</code>.</li>\n\t<li><code>multiply</code> - This method multiplies the <code>result</code> by the given number <code>value</code> and returns the updated <code>Calculator</code>.</li>\n\t<li><code>divide</code> - This method divides the <code>result</code> by the given number <code>value</code> and returns the updated <code>Calculator</code>. If the passed value is <code>0</code>, an error <code>"Division by zero is not allowed"</code> should be thrown.</li>\n\t<li><code>power</code> - This method raises the <code>result</code> to the power of the given number <code>value</code> and returns the updated <code>Calculator</code>.</li>\n\t<li><code>getResult</code> - This method returns the <code>result</code>.</li>\n</ul>\n\n<p>Solutions within <code>10<sup>-5</sup></code> of the actual result are considered correct.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> actions = ["Calculator", "add", "subtract", "getResult"], values = [10, 5, 7]\n<strong>Output:</strong> 8\n<strong>Explanation:</strong> \nnew Calculator(10).add(5).subtract(7).getResult() // 10 + 5 - 7 = 8\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> actions = ["Calculator", "multiply", "power", "getResult"], values = [2, 5, 2]\n<strong>Output:</strong> 100\n<strong>Explanation:</strong> \nnew Calculator(2).multiply(5).power(2).getResult() // (2 * 5) ^ 2 = 100\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> actions = ["Calculator", "divide", "getResult"], values = [20, 0]\n<strong>Output:</strong> "Division by zero is not allowed"\n<strong>Explanation:</strong> \nnew Calculator(20).divide(0).getResult() // 20 / 0 \n\nThe error should be thrown because we cannot divide by zero.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>2 <= actions.length <= 2 * 10<sup>4</sup></code></li>\n\t<li><code>1 <= values.length <= 2 * 10<sup>4</sup></code><code> - 1</code></li>\n\t<li><code>actions[i] is one of "Calculator", "add", "subtract", "multiply", "divide", "power", and "getResult"</code></li>\n\t<li><code><font face=\"monospace\">Last action is always "getResult"</font></code></li>\n\t<li><code><font face=\"monospace\">values is a JSON array of numbers</font></code></li>\n</ul>\n",
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161
leetcode/originData/check-if-the-number-is-fascinating.json
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leetcode/originData/check-if-the-number-is-fascinating.json
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leetcode/originData/collecting-chocolates.json
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leetcode/originData/collecting-chocolates.json
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leetcode/originData/count-of-integers.json
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leetcode/originData/count-of-integers.json
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"content": "<p>Given an array of asynchronous functions <code>functions</code>, return a new promise <code>promise</code>. Each function in the array accepts no arguments and returns a promise.</p>\n\n<p><code>promise</code> resolves:</p>\n\n<ul>\n\t<li>When all the promises returned from <code>functions</code> were resolved successfully. The resolved value of <code>promise</code> should be an array of all the resolved values of promises in the same order as they were in the <code>functions.</code></li>\n</ul>\n\n<p><code>promise</code> rejects:</p>\n\n<ul>\n\t<li>When any of the promises returned from <code>functions</code> were rejected. <code>promise</code> should also reject with the reason of the first rejection.</li>\n</ul>\n\n<p>Please solve it without using the built-in <code>Promise.all</code> function.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> functions = [\n () => new Promise(resolve => setTimeout(() => resolve(5), 200))\n]\n<strong>Output:</strong> {"t": 200, "resolved": [5]}\n<strong>Explanation:</strong> \npromiseAll(functions).then(console.log); // [5]\n\nThe single function was resolved at 200ms with a value of 5.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> functions = [\n () => new Promise(resolve => setTimeout(() => resolve(1), 200)), \n () => new Promise((resolve, reject) => setTimeout(() => reject("Error"), 100))\n]\n<strong>Output:</strong> {"t": 100, "rejected": "Error"}\n<strong>Explanation:</strong> Since one of the promises rejected, the returned promise also rejected with the same error at the same time.\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> functions = [\n () => new Promise(resolve => setTimeout(() => resolve(4), 50)), \n () => new Promise(resolve => setTimeout(() => resolve(10), 150)), \n () => new Promise(resolve => setTimeout(() => resolve(16), 100))\n]\n<strong>Output:</strong> {"t": 150, "resolved": [4, 10, 16]}\n<strong>Explanation:</strong> All the promises resolved with a value. The returned promise resolved when the last promise resolved.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>functions is an array of functions that returns promises</code></li>\n\t<li><code>1 <= functions.length <= 10</code></li>\n</ul>\n",
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162
leetcode/originData/find-a-good-subset-of-the-matrix.json
Normal file
162
leetcode/originData/find-a-good-subset-of-the-matrix.json
Normal file
File diff suppressed because one or more lines are too long
File diff suppressed because one or more lines are too long
56
leetcode/originData/interval-cancellation.json
Normal file
56
leetcode/originData/interval-cancellation.json
Normal file
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56
leetcode/originData/is-object-empty.json
Normal file
56
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56
leetcode/originData/join-two-arrays-by-id.json
Normal file
56
leetcode/originData/join-two-arrays-by-id.json
Normal file
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leetcode/originData/maximum-sum-queries.json
Normal file
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leetcode/originData/maximum-sum-queries.json
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leetcode/originData/minimize-string-length.json
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leetcode/originData/minimize-string-length.json
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leetcode/originData/movement-of-robots.json
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leetcode/originData/movement-of-robots.json
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leetcode/originData/neither-minimum-nor-maximum.json
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leetcode/originData/neither-minimum-nor-maximum.json
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174
leetcode/originData/semi-ordered-permutation.json
Normal file
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leetcode/originData/semi-ordered-permutation.json
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56
leetcode/originData/sort-by.json
Normal file
56
leetcode/originData/sort-by.json
Normal file
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175
leetcode/originData/sum-of-matrix-after-queries.json
Normal file
175
leetcode/originData/sum-of-matrix-after-queries.json
Normal file
File diff suppressed because one or more lines are too long
Reference in New Issue
Block a user