I'm getting in trouble with reading the entries of a sub-array of a numpy array, in python. I've got something like this: a = np.array([ [453,254,[1,2,3,4,5]], [743,251,[10,20,30,40,50]], [127,393,[11...

Given an array of positive integers nums and a positive integer target, return the minimal length of a contiguous subarray [numsl, numsl+1, ..., numsr-1, numsr] of which the sum is greater than or equ...

I created an array with two sub-arrays containing zeros: a=[[0]*3]*2 This looks like so: [[0, 0, 0], [0, 0, 0]] I try to modify the first value of the first sub-array like this: a[0][0] = 1 Then th...