Given two strings S and T of equal length. Both strings contain only the characters ‘0’ and ‘1’. The task is to find the minimum number of operations to convert string S to T. There are 2 types of operations allowed on string S:
- Swap any two characters of the string.
- Replace a ‘0’ with a ‘1’ or vice versa.
Input: S = “011”, T = “101”
Swap the first and second character.
Input: S = “010”, T = “101”
Swap the first and second character and replace the third character with ‘1’.
Approach: Find 2 values for the string S, the number of indices that have 0 but should be 1 and the number of indices that have 1 but should be 0. The result would be the maximum of these 2 values since we can use swaps on the minimum of these 2 values and the remaining unmatched characters can be inverted i.e. ‘0’ can be changed to ‘1’ and ‘1’ can be changed to ‘0’.
Below is the implementation of the above approach:
Time Complexity: O(N)
- Minimum number of operations required to sum to binary string S
- Minimum swaps required to convert one binary string to another
- Minimum changes required to make first string substring of second string
- Operations required to make the string empty
- Minimum number of given operations required to make two strings equal
- Minimum rotations required to get the same string
- Minimum reduce operations to covert a given string into a palindrome
- Minimum swaps required to make a binary string alternating
- Minimum cost to convert string into palindrome
- Minimum steps to convert one binary string to other only using negation
- Convert the string into palindrome string by changing only one character.
- Convert Hexadecimal value String to ASCII value String
- Find the character in first string that is present at minimum index in second string
- Minimum deletions from string to reduce it to string with at most 2 unique characters
- Count the number of carry operations required to add two numbers