Leetcode Problem 2466. Count Ways To Build Good Strings

2466. Count Ways To Build Good Strings

Leetcode Solutions

Initialize an array dp of size high + 1 with all elements set to 0.
Set dp[0] to 1, as the empty string is a valid starting point.
Iterate over each length i from 1 to high:
- If i >= zero, increment dp[i] by dp[i - zero].
- If i >= one, increment dp[i] by dp[i - one].
After filling the dp array, sum up the values from dp[low] to dp[high] to get the total count.
Return the total count modulo 10^9 + 7.

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