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Count pairs from two sorted arrays whose sum is equal to a given value x | function to count all pairs from both the sorted arrays whose sum is equal to a given value.
insert all the elements of 1 st array in the hash table ( unordered_set ' us ' ).
or each element of 'arr2[].
find ( x - arr2 [ j ] ) in 'us  .
required count of pairs.
Driver code"
Solution in Python:

Give me a code to count pairs from two sorted arrays whose sum is equal to a given value x and the other steps required?
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#Here is code to count pairs from two sorted arrays whose sum is equal to a given value x and the other steps required.
 def countPairs ( arr1 , arr2 , m , n , x ) :
	count = 0
	us = set ( )
	for i in range ( m ) :
		us . add ( arr1 [ i ] )
	for j in range ( n ) :
		if x - arr2 [ j ] in us :
			count += 1
	return count
arr1 = [ 1 , 3 , 5 , 7 ]
arr2 = [ 2 , 3 , 5 , 8 ]
m = len ( arr1 )
n = len ( arr2 )
x = 10
print ( " Count ▁ = " , countPairs ( arr1 , arr2 , m , n , x ) )