Drom's blog

By Drom, history, 5 weeks ago, In English,

We can solve the question using the recurrence $$$dp[i][j]=dp[i−1][j−1]+dp[i−2][j−1]+.....+dp[1][j−1]$$$ where i is the index and j is the length of the sequence and using K BITs to speed up the calculation of the sum.

Is there any way to solve it using segment tree as a different approach?