Delete Operation for Two Strings
Delete Operation for Two Strings
Given two strings word1 and word2, return the minimum number of steps required to make both strings identical. In one step, you can delete exactly one character from either string.
Example 1:
Input: word1 = "sea", word2 = "eat"
Output: 2
Explanation: Delete 's' from "sea" to get "ea". Delete 't' from "eat" to get "ea".
Example 2:
Input: word1 = "leetcode", word2 = "etco"
Output: 4
Constraints:
1 <= word1.length, word2.length <= 500word1andword2consist of only lowercase English letters.
Similar LeetCode problem: Delete Operation for Two Strings
AI interview prep
Core dilemma
Minimizing deletions to achieve string equality is equivalent to maximizing the common subsequence, which involves balancing the exploration of character matches and mismatches.
2 tradeoffs and 2 stress tests locked
Interview prep
Unlock the interviewer X-Ray rubric, tradeoff matrix, stress tests, clarifying questions, and key concepts.
Delete Operation for Two Strings
Delete Operation for Two Strings
Given two strings word1 and word2, return the minimum number of steps required to make both strings identical. In one step, you can delete exactly one character from either string.
Example 1:
Input: word1 = "sea", word2 = "eat"
Output: 2
Explanation: Delete 's' from "sea" to get "ea". Delete 't' from "eat" to get "ea".
Example 2:
Input: word1 = "leetcode", word2 = "etco"
Output: 4
Constraints:
1 <= word1.length, word2.length <= 500word1andword2consist of only lowercase English letters.
Similar LeetCode problem: Delete Operation for Two Strings