deploy: acbf443

Author: yanglbme

en/lc/2466/index.html

@@ -59130,6 +59130,15 @@
     </span>
   </a>
 
+</li>
+        
+          <li class="md-nav__item">
+  <a href="#solution-2-dynamic-programming" class="md-nav__link">
+    <span class="md-ellipsis">
+      Solution 2: Dynamic programming
+    </span>
+  </a>
+  
 </li>
 
       </ul>
@@ -81537,9 +81546,9 @@ <h2 id="description">Description</h2>
 <pre>
 <strong>Input:</strong> low = 3, high = 3, zero = 1, one = 1
 <strong>Output:</strong> 8
-<strong>Explanation:</strong> 
-One possible valid good string is &quot;011&quot;. 
-It can be constructed as follows: &quot;&quot; -&gt; &quot;0&quot; -&gt; &quot;01&quot; -&gt; &quot;011&quot;. 
+<strong>Explanation:</strong>
+One possible valid good string is &quot;011&quot;.
+It can be constructed as follows: &quot;&quot; -&gt; &quot;0&quot; -&gt; &quot;01&quot; -&gt; &quot;011&quot;.
 All binary strings from &quot;000&quot; to &quot;111&quot; are good strings in this example.
 </pre>
 
@@ -81771,6 +81780,93 @@ <h3 id="solution-1-memoization-search">Solution 1: Memoization Search</h3>
 </div>
 <!-- solution:end -->
 
+<!-- solution:start -->
+
+<h3 id="solution-2-dynamic-programming">Solution 2: Dynamic programming</h3>
+<div class="tabbed-set tabbed-alternate" data-tabs="2:2"><input checked="checked" id="__tabbed_2_1" name="__tabbed_2" type="radio" /><input id="__tabbed_2_2" name="__tabbed_2" type="radio" /><div class="tabbed-labels"><label for="__tabbed_2_1">TypeScript</label><label for="__tabbed_2_2">JavaScript</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>
+<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>
+<span class="normal">12</span>
+<span class="normal">13</span>
+<span class="normal">14</span>
+<span class="normal">15</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="kd">function</span><span class="w"> </span><span class="nx">countGoodStrings</span><span class="p">(</span><span class="nx">low</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">high</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">zero</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">one</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">const</span><span class="w"> </span><span class="nx">mod</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">10</span><span class="w"> </span><span class="o">**</span><span class="w"> </span><span class="mf">9</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">7</span><span class="p">;</span>
+<span class="w">    </span><span class="kd">const</span><span class="w"> </span><span class="nx">f</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="nx">high</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">).</span><span class="nx">fill</span><span class="p">(</span><span class="mf">0</span><span class="p">);</span>
+<span class="w">    </span><span class="nx">f</span><span class="p">[</span><span class="mf">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">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="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">&lt;=</span><span class="w"> </span><span class="nx">high</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</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">i</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="nx">zero</span><span class="p">)</span><span class="w"> </span><span class="nx">f</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">f</span><span class="p">[</span><span class="nx">i</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="nx">zero</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">i</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="nx">one</span><span class="p">)</span><span class="w"> </span><span class="nx">f</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">f</span><span class="p">[</span><span class="nx">i</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="nx">one</span><span class="p">];</span>
+<span class="w">        </span><span class="nx">f</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">%=</span><span class="w"> </span><span class="nx">mod</span><span class="p">;</span>
+<span class="w">    </span><span class="p">}</span>
+
+<span class="w">    </span><span class="kd">const</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">f</span><span class="p">.</span><span class="nx">slice</span><span class="p">(</span><span class="nx">low</span><span class="p">,</span><span class="w"> </span><span class="nx">high</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</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">cur</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="nx">cur</span><span class="p">,</span><span class="w"> </span><span class="mf">0</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="w"> </span><span class="o">%</span><span class="w"> </span><span class="nx">mod</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>
+<span class="normal">12</span>
+<span class="normal">13</span>
+<span class="normal">14</span>
+<span class="normal">15</span>
+<span class="normal">16</span>
+<span class="normal">17</span>
+<span class="normal">18</span>
+<span class="normal">19</span>
+<span class="normal">20</span>
+<span class="normal">21</span>
+<span class="normal">22</span></pre></div></td><td class="code"><div><pre><span></span><code><span class="cm">/**</span>
+<span class="cm"> * @param {number} low</span>
+<span class="cm"> * @param {number} high</span>
+<span class="cm"> * @param {number} zero</span>
+<span class="cm"> * @param {number} one</span>
+<span class="cm"> * @return {number}</span>
+<span class="cm"> */</span>
+<span class="kd">function</span><span class="w"> </span><span class="nx">countGoodStrings</span><span class="p">(</span><span class="nx">low</span><span class="p">,</span><span class="w"> </span><span class="nx">high</span><span class="p">,</span><span class="w"> </span><span class="nx">zero</span><span class="p">,</span><span class="w"> </span><span class="nx">one</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
+<span class="w">    </span><span class="kd">const</span><span class="w"> </span><span class="nx">mod</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">10</span><span class="w"> </span><span class="o">**</span><span class="w"> </span><span class="mf">9</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">7</span><span class="p">;</span>
+<span class="w">    </span><span class="kd">const</span><span class="w"> </span><span class="nx">f</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="nx">high</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">).</span><span class="nx">fill</span><span class="p">(</span><span class="mf">0</span><span class="p">);</span>
+<span class="w">    </span><span class="nx">f</span><span class="p">[</span><span class="mf">0</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">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="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">&lt;=</span><span class="w"> </span><span class="nx">high</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</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">i</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="nx">zero</span><span class="p">)</span><span class="w"> </span><span class="nx">f</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">f</span><span class="p">[</span><span class="nx">i</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="nx">zero</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">i</span><span class="w"> </span><span class="o">&gt;=</span><span class="w"> </span><span class="nx">one</span><span class="p">)</span><span class="w"> </span><span class="nx">f</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="nx">f</span><span class="p">[</span><span class="nx">i</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="nx">one</span><span class="p">];</span>
+<span class="w">        </span><span class="nx">f</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">%=</span><span class="w"> </span><span class="nx">mod</span><span class="p">;</span>
+<span class="w">    </span><span class="p">}</span>
+
+<span class="w">    </span><span class="kd">const</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">f</span><span class="p">.</span><span class="nx">slice</span><span class="p">(</span><span class="nx">low</span><span class="p">,</span><span class="w"> </span><span class="nx">high</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</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">cur</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="nx">cur</span><span class="p">,</span><span class="w"> </span><span class="mf">0</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="w"> </span><span class="o">%</span><span class="w"> </span><span class="nx">mod</span><span class="p">;</span>
+<span class="p">}</span>
+</code></pre></div></td></tr></table></div>
+</div>
+</div>
+</div>
+<!-- solution:end -->
+
 <!-- problem:end -->
 
 
@@ -81800,6 +81896,11 @@ <h3 id="solution-1-memoization-search">Solution 1: Memoization Search</h3>
 
     <nav>
 
+        <a href="https://github.com/rain84" class="md-author" title="@rain84">
+          
+          <img src="https://avatars.githubusercontent.com/u/1732547?v=4&size=72" alt="rain84">
+        </a>
+      
         <a href="https://github.com/yanglbme" class="md-author" title="@yanglbme">
 
           <img src="https://avatars.githubusercontent.com/u/21008209?v=4&size=72" alt="yanglbme">