Q29Multiple correct4 Marks11 Dec 2022

A function compress uses a string data and a list flag of the same size and returns a substring of characters from data if the corresponding value in flag is set to 1, otherwise it is skipped. Select correct implementation of the function compress.

A

``` def compress(data, flag): return "".join(i for i, j in filter(lambda x : x[1], zip(data, flag))) ```

B

``` def compress(data, flag): return "".join(j for i, j in enumerate(list(data)) if flag[i]) ```

C

``` def compress(data, flag): output = "" for i in range(len(data)): if flag[i] == 1: output += data[i] return output ```

D

None of these