check-distances-between-same-letters

Check Distances Between Same Letters

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checkDistances

You are given a 0-indexed string <code>s</code> consisting of only lowercase English letters, where each letter in <code>s</code> appears exactly twice. You are also given a 0-indexed integer array <code>distance</code> of length <code>26</code>.

Each letter in the alphabet is numbered from <code>0</code> to <code>25</code> (i.e. <code>&#39;a&#39; -&gt; 0</code>, <code>&#39;b&#39; -&gt; 1</code>, <code>&#39;c&#39; -&gt; 2</code>, ... , <code>&#39;z&#39; -&gt; 25</code>).

In a well-spaced string, the number of letters between the two occurrences of the <code>ith</code> letter is <code>distance[i]</code>. If the <code>ith</code> letter does not appear in <code>s</code>, then <code>distance[i]</code> can be ignored.

Return <code>true</code> if <code>s</code> is a well-spaced string, otherwise return <code>false</code>.

&nbsp;
Example 1:

<pre>
Input: s = &quot;abaccb&quot;, distance = [1,3,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
Output: true
Explanation:
- &#39;a&#39; appears at indices 0 and 2 so it satisfies distance[0] = 1.
- &#39;b&#39; appears at indices 1 and 5 so it satisfies distance[1] = 3.
- &#39;c&#39; appears at indices 3 and 4 so it satisfies distance[2] = 0.
Note that distance[3] = 5, but since &#39;d&#39; does not appear in s, it can be ignored.
Return true because s is a well-spaced string.
</pre>

Example 2:

<pre>
Input: s = &quot;aa&quot;, distance = [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
Output: false
Explanation:
- &#39;a&#39; appears at indices 0 and 1 so there are zero letters between them.
Because distance[0] = 1, s is not a well-spaced string.
</pre>

&nbsp;
Constraints:

<ul>
	<li><code>2 &lt;= s.length &lt;= 52</code></li>
	<li><code>s</code> consists only of lowercase English letters.</li>
	<li>Each letter appears in <code>s</code> exactly twice.</li>
	<li><code>distance.length == 26</code></li>
	<li><code>0 &lt;= distance[i] &lt;= 50</code></li>
</ul>

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