human
Construct a sequence from given frequencies of N consecutive integers with unit adjacent difference | Function generates the sequence.
Map to store the frequency of numbers.
Sum of all frequencies.
Try all possibilities for the starting element.
If the frequency of current element is non - zero.
vector to store the answer.
Copy of the map for every possible starting element.
Decrement the frequency.
Push the starting element to the vector.
The last element inserted is i.
Try to fill the rest of the positions if possible.
If the frequency of last - 1 is non - zero.
Decrement the frequency of last - 1.
Insert it into the sequence.
Update last number added to sequence.
Break from the inner loop.
If the size of the sequence vector is equal to sum of total frequqncies.
Return sequence.
If no such sequence if found return empty sequence.
Function Call to print the sequence.
The required sequence.
If the size of sequence if zero it means no such sequence was found.
Otherwise print the sequence.
Driver Code.
Frequency of all elements from 0 to n - 1.
Number of elements whose frequencies are given.
Function Call"
Solution in Python:
 ... Can you provide a code to construct a sequence from given frequencies of N consecutive integers with unit adjacent difference and the other steps required?
assistant
#Here is code to construct a sequence from given frequencies of N consecutive integers with unit adjacent difference and the other steps required.
 def generateSequence ( freq , n ) :
	m = { }
	total = 0
	for i in range ( n ) :
		m [ i ] = freq [ i ]
		total += freq [ i ]
	for i in range ( n ) :
		if ( m [ i ] ) :
			sequence = [ ]
			mcopy = { }
			for j in m :
				mcopy [ j ] = m [ j ]
			mcopy [ i ] -= 1
			sequence . append ( i )
			last = i
			for j in range ( total - 1 ) :
				if ( ( last - 1 ) in mcopy and mcopy [ last - 1 ] > 0 ) :
					mcopy [ last - 1 ] -= 1
					sequence . append ( last - 1 )
					last -= 1
				elif ( mcopy [ last + 1 ] ) :
					mcopy [ last + 1 ] -= 1
					sequence . append ( last + 1 )
					last += 1
				else :
					break
			if ( len ( sequence ) == total ) :
				return sequence
	return [ ]
def PrintSequence ( freq , n ) :
	sequence = generateSequence ( freq , n )
	if ( len ( sequence ) == 0 ) :
		print ( " - 1" )
	else :
		for i in range ( len ( sequence ) ) :
			print ( sequence [ i ] , end = " ▁ " )
if __name__ == ' _ _ main _ _ ' :
	freq = [ 2 , 2 , 2 , 3 , 1 ]
	N = 5
	PrintSequence ( freq , N )