How do you remove duplicates in consecutive strings?

How do you remove duplicates in consecutive strings?

Recursive Solution:

1. If the string is empty, return.
2. Else compare the adjacent characters of the string. If they are same then shift the characters one by one to the left. Call recursion on string S.
3. If they not same then call recursion from S+1 string.

How do you remove duplicates from a string in Java?

Algorithm

1. Define a string.
2. Convert the string into lowercase to make the comparison insensitive.
3. Split the string into words.
4. Two loops will be used to find duplicate words.
5. If a match found, then increment the count by 1 and set the duplicates of word to ‘0’ to avoid counting it again.

How do you find duplicate characters in a string in Java without using collections?

Approach:

1. Create a HashMap and character of String will be inserted as key and its count as value.
2. If Hashamap already contains char,increase its count by 1, else put char in HashMap.
3. If value of Char is more than 1, that means it is duplicate character in that String.

How do I get rid of adjacent duplicates?

The following approach can be followed to remove duplicates in O(N) time:

1. Start from the leftmost character and remove duplicates at left corner if there are any.
2. The first character must be different from its adjacent now.
3. Let the string obtained after reducing right substring of length n-1 be rem_str.
4. Return rem_str.

How do you remove adjacent duplicate characters from a string in Java?

1. using namespace std; // Function to remove adjacent duplicates characters from a string. void removeDuplicates(string &s)
2. { char prev; for (auto it = s. begin(); it != s.
3. if (prev == *it) { s. erase(it);
4. } else { prev = *it; }
5. } } int main()
6. { string s = “AAABBCDDD”; removeDuplicates(s);
7. cout << s << endl; return 0; }

How do you remove duplicates from string array in Java with collections?

Java Program to remove duplicate element in an Array

1. public class RemoveDuplicateInArrayExample{
2. public static int removeDuplicateElements(int arr[], int n){
3. if (n==0 || n==1){
4. return n;
5. }
6. int[] temp = new int[n];
7. int j = 0;
8. for (int i=0; i

How do you find duplicates in a string in Java?

Find duplicate characters in string

1. Split the string into character array.
2. Iterate over character array.
3. For each iteration, use character as map key and check is same character is present in map, already.
4. If map key does not exist it means the character has been encountered first time.

How do you find the characters that are being repeated in a string?

An efficient solution is to use Hashing to solve this in O(N) time on average.

1. Create an empty hash.
2. Scan each character of input string and insert values to each keys in the hash.
3. When any character appears more than once, hash key value is increment by 1, and return the character.

How do you remove all duplicates from a string algorithm?

1) By using for loop

1. In the first step, we have to convert the string into a character array.
2. Calculate the size of the array.
3. Call removeDuplicates() method by passing the character array and the length.
4. Traverse all the characters present in the character array.
5. Check whether the str[i] is present before or not.

How do I get rid of consecutive duplicates in CPP?

remove consecutive duplicates

1. #include using namespace std;
2. void stringCompression(char input[]) {
3. int i = 0; int j = 1;
4. int k = 0; while(i
5. input[k]=input[i]; while(input[i]==input[j]){
6. i++; j++;
7. } i++;
8. j++; k++;

How to remove the duplicate characters from a string in Java?

We can remove the duplicate characters from a string by using the simple for loop, sorting, hashing, and IndexOf () method. So, there can be more than one way for removing duplicates. By using the simple for loop. By using the sorting algorithm. By using the hashing. By using the indexOf () method.

How do I remove duplicates from an array in Python?

Call removeDuplicates () method by passing the character array and the length. Traverse all the characters present in the character array. Check whether the str [i] is present before or not. If it is not present before, add it to the result.

How to make the current character a duplicate in Python?

Start iterating from the first index to the end of the input string. If the current character is different from stored duplicate variable then add it to our answer string and make the current character as a duplicate character.