Chief Hopper Discussions | Algorithms | HackerRank
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Chief Hopper

  • tuan_lq121100
     + 0 comments

    Just brute force

    function checkEnergy(n, arr) {
    let en = n;
    for(let i=0;i<arr.length;i++) {
        en = 2*en - arr[i];
        if(en < 0) return false;
    }
    return true;
}
function chiefHopper(arr) {
    // Write your code here
    if(checkEnergy(arr[0], arr)) {
        let i = arr[0] - 1;
        while(checkEnergy(i, arr)) {
            i--;
        }
        i++;
        return i;
    } else {
        let i = arr[0] + 1;
        while(!checkEnergy(i, arr)) {
            i++;
        }
        return i;        
    }
}