Submission for LCS in atcoder is giving wrong answer

I am not able to understand why my submission for LCS in atcoder is failing. Please help.

My Submission

Question Link

in the line number 34 it should be

 else if(dp[i][j]>=dp[i-1][j])

instead of

 else if(dp[i][j]==dp[i-1][j])

But why so?

Because your code is wrong.

Bruh! still wa