<pre class="shiki github-dark shaku"><code>/** * @param {string} input * @returns string */function removeChars(input) { // your code here input = input.split(''); for(let i=0; i&lt;input.length; i++) { let char = input[i]; if(char === 'b') { input.splice(i, 1); i -= 1; } } for(let i=0; i&lt;input.length; i++) { let char = input[i]; let charNxt = input[i+1]; if(char === 'a' &amp;&amp; charNxt === 'c') { input.splice(i, 2); i -= 2; } } input = input.join(""); return input;}</code></pre>

Time complexity - O(N) Space Complexity - O(N)

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