<pre class="shiki github-dark shaku"><code>/** * @param {string} input * @returns string */function removeChars(input) { let res = ''; for(let ch of input){ if(ch=='b')continue; if(ch=='c' &amp;&amp; res.length &gt; 0 &amp;&amp; res.charAt(res.length-1)=='a'){ res=res.slice(0,res.length-1); continue; } res += ch; } return res;}console.log(removeChars('ab')) // 'a'console.log(removeChars('abc')) // ''console.log(removeChars('cabbaabcca')) // 'caa'</code></pre>

my solution

Given a string contaning only a, b and c, remove all b and ac. removeChars('ab') // 'a'removeChars('abc') // ''removeChars('cabbaabcca') // 'caa' > Wh…