Awesomeness of Strings - Editorial

Problem link : contest
practice

Difficulty : Easy

Pre-requisites : Simple Iteration

Solution :

We will iterate over the string and keep a counter of maximum obtained upto now and the smallest character corresponding to that maximum number, We will
update this information depending on whether the current number is equal to last number or not. Time complexity of this is O(N).

One possible issue was people were not considering the last part of the string. eg aabbb. In this case, they were not counting bbb part.

Tester’s solution: link

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