text: import { NotImplementedError } from '../extensions/index.js';
  
  /**
   * There's a list of file, since two files cannot have equal names,
   * the one which comes later will have a suffix (k),
   * where k is the smallest integer such that the found name is not used yet.
   *
   * Return an array of names that will be given to the files.
   *
   * @param {Array} names
   * @return {Array}
   *
   * @example
   * For input ["file", "file", "image", "file(1)", "file"],
   * the output should be ["file", "file(1)", "image", "file(1)(1)", "file(2)"]
   *
   */
  export default function renameFiles(names) {
    let result = [];
    let count = 1;
  
    names.forEach(element => {
      if (result.includes(element)) {
        result.push( (result.includes(element + `(${count})`)) ? element + `(${count + 1})` : element + `(${count})` );
      } else {
        result.push(element);
      }
    });
  
    return result;
  }
  