human
Write me a code to count ways to split array into two equal sum subarrays by replacing each array element to 0 once and the other steps required given the following:
Count ways to split array into two equal sum subarrays by replacing each array element to 0 once | Function to find number of ways to split array into 2 subarrays having equal sum by changing element to 0 once.
Stores the count of elements in prefix and suffix of array elements.
Stores the sum of array.
Traverse the array.
Increase the frequency of current element in suffix.
Stores prefix sum upto index i.
Stores sum of suffix of index i.
Stores the desired result.
Traverse the array.
Modify prefix sum.
Add arr [ i ] to prefix map.
Calculate suffix sum by subtracting prefix sum from total sum of elements.
Remove arr [ i ] from suffix map.
Store the difference between the subarrays.
Count number of ways to split the array at index i such that subarray sums are equal.
Update the final result.
Return the result.
Driver Code.
Function Call"
Solution in Python:
assistant
#Here is code to count ways to split array into two equal sum subarrays by replacing each array element to 0 once and the other steps required.
 def countSubArrayRemove ( arr , N ) :
	prefix_element_count = { }
	suffix_element_count = { }
	total_sum_of_elements = 0
	i = N - 1
	while ( i >= 0 ) :
		total_sum_of_elements += arr [ i ]
		suffix_element_count [ arr [ i ] ] = suffix_element_count . get ( arr [ i ] , 0 ) + 1
		i -= 1
	prefix_sum = 0
	suffix_sum = 0
	count_subarray_equal_sum = 0
	for i in range ( N ) :
		prefix_sum += arr [ i ]
		prefix_element_count [ arr [ i ] ] = prefix_element_count . get ( arr [ i ] , 0 ) + 1
		suffix_sum = total_sum_of_elements - prefix_sum
		suffix_element_count [ arr [ i ] ] = suffix_element_count . get ( arr [ i ] , 0 ) - 1
		difference = prefix_sum - suffix_sum
		number_of_subarray_at_i_split = ( prefix_element_count . get ( difference , 0 ) + suffix_element_count . get ( - difference , 0 ) )
		count_subarray_equal_sum += number_of_subarray_at_i_split
	return count_subarray_equal_sum
if __name__ == ' _ _ main _ _ ' :
	arr = [ 1 , 2 , 1 , 1 , 3 , 1 ]
	N = len ( arr )
	print ( countSubArrayRemove ( arr , N ) )