<pre class="shiki github-dark shaku"><code>/** * @param {string} input * @returns string */function removeChars(input) { let newStr = input; while (newStr.includes("b") || newStr.includes("ac")) { newStr = newStr.replace("b","").replace("ac", "") } return newStr;}removeChars('cabbaabcca')</code></pre>

O(n^2) time complexity, O(n) space complexity

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