How to Solve Lexicographically Smallest String After Operations With Constraint Problem
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Lexicographically Smallest String After Operations With Constraint
You are given a string s and an integer k. Define a function distance(s1, s2) between two strings s1 and s2 of the same length n as: For example, distance("ab", "cd") == 4, and distance("a", "z") == 1. You can change any letter of s to any other lowercase English letter, any number of times. Return a string denoting the lexicographically smallest string t you can get after some changes, such that distance(s, t) <= k.
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Understanding the Lexicographically Smallest String After Operations With Constraint Problem
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Problem Statement
You are given a string s and an integer k. Define a function distance(s1, s2) between two strings s1 and s2 of the same length n as: For example, distance("ab", "cd") == 4, and distance("a", "z") == 1. You can change any letter of s to any other lowercase English letter, any number of times. Return a string denoting the lexicographically smallest string t you can get after some changes, such that distance(s, t) <= k.
Lexicographically Smallest String After Operations With Constraint
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Examples
# Example 1
s = "zbbz", k = 3
"aaaz"
# Example 2
s = "xaxcd", k = 4
"aawcd"
# Example 3
s = "lol", k = 0
"lol"
Constraints
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Solve Lexicographically Smallest String After Operations With Constraint — You are given a string s and an integer k. Define a function distance(s1, s2) be...
Here's the optimal approach using String:
Time: O(n) | Space: O(n)
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