I have a basic question about list-manipulation. I have two lists:
l1 = {{1, 1}, {2, 2}, {3, 3}}
l2 = {a, b, c}
The desired outcome is: {{a,1,1},{b,2,2},{c,3,3}}
I tried with Transpose but didn't get it to work; any suggestions?
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asked Mar 17, 2017 at 13:52
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1 Answer
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MapThread[Prepend, {l1, l2}]
or
Flatten /@ Transpose[{l1, l2}]
