Arrange characters as per frequency in a string

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The first task is to compute the frequency of each character appearing in the string. In the output, the characters have to be arranged in the same order as they appear in the input string.
Then characters have to be rearranged, such that all the characters having a specific frequency, say x, come together.

What I have tried:

first part of accumulating frequency is done .Whereas second part for rearranging is left.

Posted 26-Sep-20 8:16am

Member 14949318

Updated 26-Sep-20 8:20am

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OriginalGriff · Answer 1 · 2020-09-26T08:20:00

You know the frequency of characters and the actual characters. So create a new string and fill it with n of the first character, m of the second, and so on.

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