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Bite 287. Sum indices
Login and get codingWrite a function that accepts a list of strings and returns the total of the indices of the items.
Example 1:
['a', 'b', 'c']=>0 + 1 + 2 = 3The indices for duplicate items should be accumulated in the total as they appear.
Example 2:
['a', 'b', 'b', 'c']=>0 + 1 + (1+2) + 3 = 7Example 3:
['a', 'b', 'b', 'c', 'a', 'b', 'a']=>0 + 1 + (1+2) + 3 + (0+4) + (1+2+5) + (0+4+6) = 29
3X
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