deploy: e780ccd

Author: yanglbme

en/lc/2011/index.html

@@ -49619,18 +49619,9 @@
       <ul class="md-nav__list">
 
           <li class="md-nav__item">
-  <a href="#solution-1-simulation" class="md-nav__link">
+  <a href="#solution-1-counting" class="md-nav__link">
     <span class="md-ellipsis">
-      Solution 1: Simulation
-    </span>
-  </a>
-  
-</li>
-        
-          <li class="md-nav__item">
-  <a href="#solution-2" class="md-nav__link">
-    <span class="md-ellipsis">
-      Solution 2
+      Solution 1: Counting
     </span>
   </a>
 
@@ -82176,9 +82167,9 @@ <h2 id="description">Description</h2>
 <h2 id="solutions">Solutions</h2>
 <!-- solution:start -->
 
-<h3 id="solution-1-simulation">Solution 1: Simulation</h3>
-<p>Traverse the array <code>operations</code>. For each operation $operations[i]$, if it contains <code>'+'</code>, then the answer increases by $1$, otherwise the answer decreases by $1$.</p>
-<p>The time complexity is $O(n)$, where $n$ is the length of the array <code>operations</code>. The space complexity is $O(1)$.</p>
+<h3 id="solution-1-counting">Solution 1: Counting</h3>
+<p>We traverse the array $\textit{operations}$. For each operation $\textit{operations}[i]$, if it contains <code>'+'</code>, we increment the answer by $1$, otherwise, we decrement the answer by $1$.</p>
+<p>The time complexity is $O(n)$, where $n$ is the length of the array $\textit{operations}$. The space complexity is $O(1)$.</p>
 <div class="tabbed-set tabbed-alternate" data-tabs="1:8"><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" /><input id="__tabbed_1_7" name="__tabbed_1" type="radio" /><input id="__tabbed_1_8" 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><label for="__tabbed_1_7">JavaScript</label><label for="__tabbed_1_8">C</label></div>
 <div class="tabbed-content">
 <div class="tabbed-block">
@@ -82210,18 +82201,22 @@ <h3 id="solution-1-simulation">Solution 1: Simulation</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></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>
+<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>
 <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">finalValueAfterOperations</span><span class="p">(</span><span class="n">vector</span><span class="o">&lt;</span><span class="n">string</span><span class="o">&gt;&amp;</span><span class="w"> </span><span class="n">operations</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="k">auto</span><span class="o">&amp;</span><span class="w"> </span><span class="n">s</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="n">operations</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="p">(</span><span class="n">s</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="sc">&#39;+&#39;</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="mi">1</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="k">for</span><span class="w"> </span><span class="p">(</span><span class="k">auto</span><span class="o">&amp;</span><span class="w"> </span><span class="n">s</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="n">operations</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">s</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="sc">&#39;+&#39;</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="mi">1</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="k">return</span><span class="w"> </span><span class="n">ans</span><span class="p">;</span>
 <span class="w">    </span><span class="p">}</span>
 <span class="p">};</span>
@@ -82252,16 +82247,8 @@ <h3 id="solution-1-simulation">Solution 1: Simulation</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>
-<span class="normal">4</span>
-<span class="normal">5</span>
-<span class="normal">6</span>
-<span class="normal">7</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="kd">function</span><span class="w"> </span><span class="nx">finalValueAfterOperations</span><span class="p">(</span><span class="nx">operations</span><span class="o">:</span><span class="w"> </span><span class="kt">string</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">let</span><span class="w"> </span><span class="nx">operation</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="nx">operations</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
-<span class="w">        </span><span class="nx">ans</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">operation</span><span class="p">.</span><span class="nx">includes</span><span class="p">(</span><span class="s1">&#39;+&#39;</span><span class="p">)</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="mf">1</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="o">-</span><span class="mf">1</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="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">finalValueAfterOperations</span><span class="p">(</span><span class="nx">operations</span><span class="o">:</span><span class="w"> </span><span class="kt">string</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">operations</span><span class="p">.</span><span class="nx">reduce</span><span class="p">((</span><span class="nx">acc</span><span class="p">,</span><span class="w"> </span><span class="nx">op</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="nx">acc</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="p">(</span><span class="nx">op</span><span class="p">[</span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="s1">&#39;+&#39;</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="mf">1</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="o">-</span><span class="mf">1</span><span class="p">),</span><span class="w"> </span><span class="mf">0</span><span class="p">);</span>
 <span class="p">}</span>
 </code></pre></div></td></tr></table></div>
 </div>
@@ -82286,26 +82273,18 @@ <h3 id="solution-1-simulation">Solution 1: Simulation</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>
-<span class="normal">11</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="cm">/**</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>
+<span class="normal">7</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="cm">/**</span>
 <span class="cm"> * @param {string[]} operations</span>
 <span class="cm"> * @return {number}</span>
 <span class="cm"> */</span>
 <span class="kd">var</span><span class="w"> </span><span class="nx">finalValueAfterOperations</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kd">function</span><span class="w"> </span><span class="p">(</span><span class="nx">operations</span><span class="p">)</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">s</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="nx">operations</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
-<span class="w">        </span><span class="nx">ans</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">s</span><span class="p">[</span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="s1">&#39;+&#39;</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="mf">1</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="o">-</span><span class="mf">1</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="w">    </span><span class="k">return</span><span class="w"> </span><span class="nx">operations</span><span class="p">.</span><span class="nx">reduce</span><span class="p">((</span><span class="nx">acc</span><span class="p">,</span><span class="w"> </span><span class="nx">op</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="nx">acc</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="p">(</span><span class="nx">op</span><span class="p">[</span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="s1">&#39;+&#39;</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="mf">1</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="o">-</span><span class="mf">1</span><span class="p">),</span><span class="w"> </span><span class="mf">0</span><span class="p">);</span>
 <span class="p">};</span>
 </code></pre></div></td></tr></table></div>
 </div>
@@ -82329,23 +82308,6 @@ <h3 id="solution-1-simulation">Solution 1: Simulation</h3>
 </div>
 <!-- solution:end -->
 
-<!-- solution:start -->
-
-<h3 id="solution-2">Solution 2</h3>
-<div class="tabbed-set tabbed-alternate" data-tabs="2:1"><input checked="checked" id="__tabbed_2_1" name="__tabbed_2" type="radio" /><div class="tabbed-labels"><label for="__tabbed_2_1">TypeScript</label></div>
-<div class="tabbed-content">
-<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">finalValueAfterOperations</span><span class="p">(</span><span class="nx">operations</span><span class="o">:</span><span class="w"> </span><span class="kt">string</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">operations</span><span class="p">.</span><span class="nx">reduce</span><span class="p">((</span><span class="nx">r</span><span class="p">,</span><span class="w"> </span><span class="nx">v</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="nx">r</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="p">(</span><span class="nx">v</span><span class="p">[</span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="s1">&#39;+&#39;</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="mf">1</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="o">-</span><span class="mf">1</span><span class="p">),</span><span class="w"> </span><span class="mf">0</span><span class="p">);</span>
-<span class="p">}</span>
-</code></pre></div></td></tr></table></div>
-</div>
-</div>
-</div>
-<!-- solution:end -->
-
 <!-- problem:end -->