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  1. Prepare
  2. Algorithms
  3. Strings
  4. Super Reduced String
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Super Reduced String

  • xorumanuh99
     + 0 comments

    Here's my solution in typescript. Strings are immutable in JS and I don't think creating an array is efficient using String.prototype.split('') and then again converting it into a string using Array.prototype.join([ ])

    function superReducedString(s: string): string {
    const [reducedString, cannotBeReducedFurther] = reduceString(s);
    if (cannotBeReducedFurther) {
        return reducedString || 'Empty String';
    }
    return superReducedString(reducedString);
}

function reduceString(s: string): [string, boolean] {
    let idx = 0;
    let result = '';
    let noAdjacentCharactersFound = true;
    while (idx < s.length) {
        if (s.charAt(idx) === s.charAt(idx + 1)) {
            idx += 2;
            noAdjacentCharactersFound = false;
        } else {
            result += s.charAt(idx++);
        }
    }
    return [result, noAdjacentCharactersFound];
}