check-if-the-sentence-is-pangram

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Algorithms

A pangram is a sentence where every letter of the English alphabet appears at least once.

Given a string <code>sentence</code> containing only lowercase English letters, return <code>true</code> if <code>sentence</code> is a pangram, or <code>false</code> otherwise.

&nbsp;
Example 1:

<pre>
Input: sentence = &quot;thequickbrownfoxjumpsoverthelazydog&quot;
Output: true
Explanation: sentence contains at least one of every letter of the English alphabet.
</pre>

Example 2:

<pre>
Input: sentence = &quot;leetcode&quot;
Output: false
</pre>

&nbsp;
Constraints:

<ul>
	<li><code>1 &lt;= sentence.length &lt;= 1000</code></li>
	<li><code>sentence</code> consists of lowercase English letters.</li>
</ul>

第 237 场周赛

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checkIfPangram

Check if the Sentence Is Pangram

Hash Table

String

全字母句 指包含英语字母表中每个字母至少一次的句子。

给你一个仅由小写英文字母组成的字符串 <code>sentence</code> ，请你判断 <code>sentence</code> 是否为 全字母句 。

如果是，返回 <code>true</code> ；否则，返回 <code>false</code> 。

 

示例 1：

<pre>
输入：sentence = "thequickbrownfoxjumpsoverthelazydog"
输出：true
解释：<code>sentence</code> 包含英语字母表中每个字母至少一次。
</pre>

示例 2：

<pre>
输入：sentence = "leetcode"
输出：false
</pre>

 

提示：

<ul>
	<li><code>1 <= sentence.length <= 1000</code></li>
	<li><code>sentence</code> 由小写英语字母组成</li>
</ul>