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  1. Arrays: Left Rotation
  2. Discussions

Arrays: Left Rotation

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4981 Discussions

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  • 99chxn
     + 0 comments

    C++ solution

    vector<int> rotLeft(vector<int> a, int d) {
    while(d)
    {
        int temp = a[0];
        a.push_back(temp);
        a.erase(a.begin());
        d--;
    }
    
    return a;
}

  • sachinmore108
     + 0 comments
        int n = a.Count;

    for (int i = 0; i < d; i++)
    {
        int firstElement = a[0];
        a.RemoveAt(0);
        a.Insert(n - 1, firstElement);
    }

    return a;

  • javierwang010521
     + 0 comments

    Python efficient using mod:

    def rotLeft(a, d): 
    realRots = d % len(a) 
    return a[realRots:] + a[:realRots]

  • nokors
     + 0 comments

    Python:

    def rotLeft(a, d):
    # Write your code here
    for i in range(d):
        item = a.pop(0)
        a.append(item)
    return a

  • nokors
     + 0 comments

    Python:

        for i in range(d):
        item = a.pop(0)
        a.append(item)
    return a