Please help as only one of the test case is passing

#1
#2

@sarthaksingh
Hello Sarthak,
your code line number 12 should be as follows
ans = (ans-dp[v[s[i-1]]]+1000000007)%1000000007;
because of modulo property
i.e (a-b)%m = (a-b+m)%m

#3

rest of ur code is totally correct .
please don’t forget to mark your doubt as resolved

#4

@sarthaksingh @sarthaksingh
hello sarthak,please mark your doubt as resolved

#5

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