How do you find the smallest substring which contains all characters from a given string?

Method 1 ( Brute force solution )

1. Generate all substrings of string1 (“this is a test string”)
2. For each substring, check whether the substring contains all characters of string2 (“tist”)
3. Finally, print the smallest substring containing all characters of string2.

How do you find the subsequence of a string?

Step 1: Iterate over the entire String Step 2: Iterate from the end of string in order to generate different substring add the substring to the list Step 3: Drop kth character from the substring obtained from above to generate different subsequence. Step 4: if the subsequence is not in the list then recur.

How do you print the shortest common Supersequence?

If the characters corresponding to current cell (i, j) in X and Y are same, then the character is part of shortest supersequence. We append it in output string and move diagonally to next cell (i.e. (i – 1, j – 1)).

What is lexicographically smallest string?

Explanation: The possible strings formed by placing the character C in string at different indices are {“eabcd”, “aebcd”, “abecd”, “abced”, “abcde”}. The lexicographically smallest string is “abcde”.

How do I find the shortest substring in Python?

Program to Find Out the Smallest Substring Containing a Specific String in Python

1. N := size of S.
2. dp := a new list of size N initialized with infinity.
3. for i in range 0 to N − 1, do.
4. for j in range 1 to size of T − 1, do.
5. m := minimum of dp.
6. i := return the index containing m in dp.
7. if m is infinity, then.

What is super string in Java?

super String> is any class which is a superclass of String (including String itself). (In this case, the only other suitable class is Object .) What you described would be (which in this specific case wouldn’t be very useful as String is final , so it can have no subclasses).

What is a subsequence in a string?

A subsequence of a string is a new string that is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. (i.e., “ace” is a subsequence of “abcde” while “aec” is not).

How do you find the lexicographically smallest character from a given string?

Explanation: Inserting character b in the second position gives the lexicographically smallest string. Explanation: Inserting character e in the last index gives the lexicographically smallest string.

What is alphabetically smallest string?

6 Answers. The smallest lexicographical order is an order relation where string s is smaller than t, given the first character of s (s1) is smaller than the first character of t (t1), or in case they are equivalent, the second character, etc.