Tuple index out of range in Python

Question

def max_logged_in(interval_lst,T):
    startArr, endArr = zip(*interval_lst)
    i = 0
    j = 0
    maxOverlap = 0
    currentOverlap = 0
    while (i<T and j<T):
        if (startArr[i] < endArr[j]):
            currentOverlap = currentOverlap + 1
            maxOverlap = max(maxOverlap, currentOverlap)
            i = i + 1
        else:
            currentOverlap = currentOverlap - 1
            j = j + 1

The code is supposed to run through the two arrays and find the max overlap give a list such as [(5,15), (18,25), (3,12), (4, 11), (1,15), (18,19)] in the given time (T). Running this code is giving me a tuple index error. I can't seem to figure out why it is giving me an index error.

Could you elaborate please? I'm having trouble understanding why. — Limbo
– Limbo, Commented Oct 20, 2016 at 1:38

Scott Hunter · Accepted Answer · 2016-10-20 08:03:29Z

1

If T is greater than the length of interval_lst, then i and/or j can get as high as that length, but there is no element in either startArr nor endArr at that index (since they are each the same length as interval_lst).

answered Oct 20, 2016 at 8:03

Scott Hunter

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