Wa in some test cases

#1

why it is showing wrong ans in test case 3 and 4 but showing correct in all other cases
my code is in coding blocks ide
code no : 139618
name : random query

#2

Hi

Can you please explain little about your logic
(I think this equation is wrong.)

(just this part. :
f1(i,sz-1){
dp[i+1]=dp[i]+(i+1-prevind[v[i+1]]);
prevind[v[i+1]]=i+1;
}
}

your recursive equation ?

#3

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