human
Can you provide a code to smallest index in given range of indices which is not equal to X and the other steps required given the following:
Smallest index in given range of indices which is not equal to X | Precompute the index of next different element in the array for every array element.
Default value.
Compute nextpos [ i ] using nextpos [ i + 1 ].
Function to return the smallest index.
nextpos [ i ] will store the next position p where arr [ p ] != arr [ i ].
If X is not present at l.
Otherwise.
Find the index which stores a value different from X.
If that index is within the range.
Driver code"
Solution in Python:
assistant
#Here is code to smallest index in given range of indices which is not equal to X and the other steps required.
 def precompute ( nextpos , arr , N ) :
	nextpos [ N - 1 ] = N
	for i in range ( N - 2 , - 1 , - 1 ) :
		if arr [ i ] == arr [ i + 1 ] :
			nextpos [ i ] = nextpos [ i + 1 ]
		else :
			nextpos [ i ] = i + 1
def findIndex ( query , arr , N , Q ) :
	nextpos = [ 0 ] * N
	precompute ( nextpos , arr , N )
	for i in range ( Q ) :
		l = query [ i ] [ 0 ]
		r = query [ i ] [ 1 ]
		x = query [ i ] [ 2 ]
		ans = - 1
		if arr [ l ] != x :
			ans = l
		else :
			d = nextpos [ l ]
			if d <= r :
				ans = d
		print ( ans )
N = 6
Q = 3
arr = [ 1 , 2 , 1 , 1 , 3 , 5 ]
query = [ [ 0 , 3 , 1 ] , [ 1 , 5 , 2 ] , [ 2 , 3 , 1 ] ]
findIndex ( query , arr , N , Q )