mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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172 lines
16 KiB
JSON
172 lines
16 KiB
JSON
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"title": "Student Attendance Record I",
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"content": "<p>You are given a string <code>s</code> representing an attendance record for a student where each character signifies whether the student was absent, late, or present on that day. The record only contains the following three characters:</p>\n\n<ul>\n\t<li><code>'A'</code>: Absent.</li>\n\t<li><code>'L'</code>: Late.</li>\n\t<li><code>'P'</code>: Present.</li>\n</ul>\n\n<p>The student is eligible for an attendance award if they meet <strong>both</strong> of the following criteria:</p>\n\n<ul>\n\t<li>The student was absent (<code>'A'</code>) for <strong>strictly</strong> fewer than 2 days <strong>total</strong>.</li>\n\t<li>The student was <strong>never</strong> late (<code>'L'</code>) for 3 or more <strong>consecutive</strong> days.</li>\n</ul>\n\n<p>Return <code>true</code><em> if the student is eligible for an attendance award, or </em><code>false</code><em> otherwise</em>.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "PPALLP"\n<strong>Output:</strong> true\n<strong>Explanation:</strong> The student has fewer than 2 absences and was never late 3 or more consecutive days.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = "PPALLL"\n<strong>Output:</strong> false\n<strong>Explanation:</strong> The student was late 3 consecutive days in the last 3 days, so is not eligible for the award.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= s.length <= 1000</code></li>\n\t<li><code>s[i]</code> is either <code>'A'</code>, <code>'L'</code>, or <code>'P'</code>.</li>\n</ul>\n",
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"difficulty": "Easy",
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"exampleTestcases": "\"PPALLP\"\n\"PPALLL\"",
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"categoryTitle": "Algorithms",
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"name": "String",
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"code": "-spec check_record(S :: unicode:unicode_binary()) -> boolean().\ncheck_record(S) ->\n .",
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"sampleTestCase": "\"PPALLP\"",
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