Leetcode Problem 830. Positions of Large Groups

830. Positions of Large Groups

Leetcode Solutions

Initialize an empty list result to store the intervals of large groups.
Initialize two pointers i and j to 0.
Iterate through the string using j as the index. a. If j reaches the end of the string or the character at j is not equal to the character at j + 1, check if the group is large. b. If the group is large (i.e., j - i + 1 >= 3), append the interval [i, j] to result. c. Update i to j + 1 to start the next group.
Return the result list.

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