Leetcode Problem 1946. Largest Number After Mutating Substring

1946. Largest Number After Mutating Substring

Leetcode Solutions

Greedy Approach for Single Substring Mutation

  1. Initialize a boolean flag startedMutation to False to track if the mutation has started.
  2. Iterate through each digit in the input string num using an index i.
  3. For each digit, calculate the mapped digit using the change array.
  4. If the mapped digit is greater than the current digit and startedMutation is False, set startedMutation to True.
  5. If startedMutation is True, replace the current digit with the mapped digit.
  6. If the mapped digit is less than the current digit and startedMutation is True, break the loop as the mutation should end.
  7. Continue the loop until all digits are processed or the mutation ends.
  8. Return the mutated string.
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Brute Force Approach for Single Substring Mutation

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