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158. Given 2 strings S1 and S2, Check the first charaster that is repeated in S2.
Microsoft Interview Questions and Answers
(Continued from previous question...)
158. Given 2 strings S1 and S2, Check the first charaster that is repeated in S2.
Question:
Given 2 strings S1 and S2, Check the first charaster that is repeated in S2.
maybe an answer:
If the question is: "Get the first character from s1 that is repeated in s2." (otherwise, reformulate the question and/or give a sample), then:
-Assume ASCII.
-Create a array a[128] where you set the frequency of the characters from s2.
-For every char in s1, check if the frequency is >= 2.
-O(n+m)
maybe an answer2:
1. Create a new string S3 = S1 + S2;
2. Iterate through char in S3;
3. Find index of each char from S3 in S2 and S3.
4. If index from S2 is !=1 && 2 index are not same them return that character.
(Continued on next question...)
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