deploy: dcaf658

Author: acbin

en/lc/2462/index.html

@@ -65552,9 +65552,9 @@
       <ul class="md-nav__list">
 
           <li class="md-nav__item">
-  <a href="#solution-1" class="md-nav__link">
+  <a href="#solution-1-iteration-and-counting" class="md-nav__link">
     <span class="md-ellipsis">
-      Solution 1
+      Solution 1: Iteration and Counting
     </span>
   </a>
 
@@ -75320,7 +75320,10 @@ <h2 id="description">Description</h2>
 </ul>
 
 <h2 id="solutions">Solutions</h2>
-<h3 id="solution-1">Solution 1</h3>
+<h3 id="solution-1-iteration-and-counting">Solution 1: Iteration and Counting</h3>
+<p>We can iterate through the array $hours$. For each employee, if their working hours $x$ is greater than or equal to $target$, then we increment the counter $ans$ by one.</p>
+<p>After the iteration, we return the answer.</p>
+<p>The time complexity is $O(n)$, where $n$ is the length of the array $hours$. The space complexity is $O(1)$.</p>
 <div class="tabbed-set tabbed-alternate" data-tabs="1:6"><input checked="checked" id="__tabbed_1_1" name="__tabbed_1" type="radio" /><input id="__tabbed_1_2" name="__tabbed_1" type="radio" /><input id="__tabbed_1_3" name="__tabbed_1" type="radio" /><input id="__tabbed_1_4" name="__tabbed_1" type="radio" /><input id="__tabbed_1_5" name="__tabbed_1" type="radio" /><input id="__tabbed_1_6" name="__tabbed_1" type="radio" /><div class="tabbed-labels"><label for="__tabbed_1_1">Python3</label><label for="__tabbed_1_2">Java</label><label for="__tabbed_1_3">C++</label><label for="__tabbed_1_4">Go</label><label for="__tabbed_1_5">TypeScript</label><label for="__tabbed_1_6">Rust</label></div>
 <div class="tabbed-content">
 <div class="tabbed-block">
@@ -75356,23 +75359,15 @@ <h3 id="solution-1">Solution 1</h3>
 </code></pre></div></td></tr></table></div>
 </div>
 <div class="tabbed-block">
-<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"> 1</span>
-<span class="normal"> 2</span>
-<span class="normal"> 3</span>
-<span class="normal"> 4</span>
-<span class="normal"> 5</span>
-<span class="normal"> 6</span>
-<span class="normal"> 7</span>
-<span class="normal"> 8</span>
-<span class="normal"> 9</span>
-<span class="normal">10</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="k">class</span><span class="w"> </span><span class="nc">Solution</span><span class="w"> </span><span class="p">{</span>
+<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal">1</span>
+<span class="normal">2</span>
+<span class="normal">3</span>
+<span class="normal">4</span>
+<span class="normal">5</span>
+<span class="normal">6</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="k">class</span><span class="w"> </span><span class="nc">Solution</span><span class="w"> </span><span class="p">{</span>
 <span class="k">public</span><span class="o">:</span>
 <span class="w">    </span><span class="kt">int</span><span class="w"> </span><span class="n">numberOfEmployeesWhoMetTarget</span><span class="p">(</span><span class="n">vector</span><span class="o">&lt;</span><span class="kt">int</span><span class="o">&gt;&amp;</span><span class="w"> </span><span class="n">hours</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">target</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
-<span class="w">        </span><span class="kt">int</span><span class="w"> </span><span class="n">ans</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
-<span class="w">        </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">x</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="n">hours</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
-<span class="w">            </span><span class="n">ans</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="n">x</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="n">target</span><span class="p">;</span>
-<span class="w">        </span><span class="p">}</span>
-<span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">ans</span><span class="p">;</span>
+<span class="w">        </span><span class="k">return</span><span class="w"> </span><span class="n">count_if</span><span class="p">(</span><span class="n">hours</span><span class="p">.</span><span class="n">begin</span><span class="p">(),</span><span class="w"> </span><span class="n">hours</span><span class="p">.</span><span class="n">end</span><span class="p">(),</span><span class="w"> </span><span class="p">[</span><span class="n">target</span><span class="p">](</span><span class="kt">int</span><span class="w"> </span><span class="n">h</span><span class="p">)</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">h</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="n">target</span><span class="p">;</span><span class="w"> </span><span class="p">});</span>
 <span class="w">    </span><span class="p">}</span>
 <span class="p">};</span>
 </code></pre></div></td></tr></table></div>
@@ -75398,43 +75393,25 @@ <h3 id="solution-1">Solution 1</h3>
 <div class="tabbed-block">
 <div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal">1</span>
 <span class="normal">2</span>
+<span class="normal">3</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="kd">function</span><span class="w"> </span><span class="nx">numberOfEmployeesWhoMetTarget</span><span class="p">(</span><span class="nx">hours</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[],</span><span class="w"> </span><span class="nx">target</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
+<span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="nx">hours</span><span class="p">.</span><span class="nx">filter</span><span class="p">(</span><span class="nx">x</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="nx">x</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="nx">target</span><span class="p">).</span><span class="nx">length</span><span class="p">;</span>
+<span class="p">}</span>
+</code></pre></div></td></tr></table></div>
+</div>
+<div class="tabbed-block">
+<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal">1</span>
+<span class="normal">2</span>
 <span class="normal">3</span>
 <span class="normal">4</span>
 <span class="normal">5</span>
 <span class="normal">6</span>
 <span class="normal">7</span>
-<span class="normal">8</span>
-<span class="normal">9</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="kd">function</span><span class="w"> </span><span class="nx">numberOfEmployeesWhoMetTarget</span><span class="p">(</span><span class="nx">hours</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[],</span><span class="w"> </span><span class="nx">target</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
-<span class="w">    </span><span class="kd">let</span><span class="w"> </span><span class="nx">ans</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
-<span class="w">    </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">const</span><span class="w"> </span><span class="nx">x</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="nx">hours</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
-<span class="w">        </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">x</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="nx">target</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
-<span class="w">            </span><span class="o">++</span><span class="nx">ans</span><span class="p">;</span>
-<span class="w">        </span><span class="p">}</span>
-<span class="w">    </span><span class="p">}</span>
-<span class="w">    </span><span class="k">return</span><span class="w"> </span><span class="nx">ans</span><span class="p">;</span>
-<span class="p">}</span>
-</code></pre></div></td></tr></table></div>
-</div>
-<div class="tabbed-block">
-<div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span></span><span class="normal"> 1</span>
-<span class="normal"> 2</span>
-<span class="normal"> 3</span>
-<span class="normal"> 4</span>
-<span class="normal"> 5</span>
-<span class="normal"> 6</span>
-<span class="normal"> 7</span>
-<span class="normal"> 8</span>
-<span class="normal"> 9</span>
-<span class="normal">10</span>
-<span class="normal">11</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="k">impl</span><span class="w"> </span><span class="n">Solution</span><span class="w"> </span><span class="p">{</span>
+<span class="normal">8</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="k">impl</span><span class="w"> </span><span class="n">Solution</span><span class="w"> </span><span class="p">{</span>
 <span class="w">    </span><span class="k">pub</span><span class="w"> </span><span class="k">fn</span> <span class="nf">number_of_employees_who_met_target</span><span class="p">(</span><span class="n">hours</span>: <span class="nb">Vec</span><span class="o">&lt;</span><span class="kt">i32</span><span class="o">&gt;</span><span class="p">,</span><span class="w"> </span><span class="n">target</span>: <span class="kt">i32</span><span class="p">)</span><span class="w"> </span>-&gt; <span class="kt">i32</span> <span class="p">{</span>
-<span class="w">        </span><span class="kd">let</span><span class="w"> </span><span class="k">mut</span><span class="w"> </span><span class="n">ans</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
-<span class="w">        </span><span class="k">for</span><span class="w"> </span><span class="o">&amp;</span><span class="n">v</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">hours</span><span class="p">.</span><span class="n">iter</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
-<span class="w">            </span><span class="k">if</span><span class="w"> </span><span class="n">v</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="n">target</span><span class="w"> </span><span class="p">{</span>
-<span class="w">                </span><span class="n">ans</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
-<span class="w">            </span><span class="p">}</span>
-<span class="w">        </span><span class="p">}</span>
-<span class="w">        </span><span class="n">ans</span>
+<span class="w">        </span><span class="n">hours</span>
+<span class="w">            </span><span class="p">.</span><span class="n">iter</span><span class="p">()</span>
+<span class="w">            </span><span class="p">.</span><span class="n">filter</span><span class="p">(</span><span class="o">|&amp;</span><span class="n">x</span><span class="o">|</span><span class="w"> </span><span class="o">*</span><span class="n">x</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="n">target</span><span class="p">)</span>
+<span class="w">            </span><span class="p">.</span><span class="n">count</span><span class="p">()</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="kt">i32</span>
 <span class="w">    </span><span class="p">}</span>
 <span class="p">}</span>
 </code></pre></div></td></tr></table></div>