Bracket Problem (Asked in Toptal Interview )

bracket-problem.js

'use strict';

function solution(S) {
    var arr = [];
    var K = 0;
    for (var i=0; i<S.length; i++) {
        if (S[i]=='(') {
            arr.push(S[i]);
        } else {
            if(arr.length){
                arr.pop();
            }
            K++;
        }
    }
    return K;
}

Hi abhinav,
Thanks for sharing. what were the other two problems? I am preparing for Toptal. I would like to know the difficulty level of problems asked