human
Largest number made up of X and Y with count of X divisible by Y and of Y by X | Function to generate and return the largest number.
Store the smaller in Y.
Store the larger in X.
Stores respective counts.
If N is divisible by Y.
Append X , N times to the answer.
Reduce N to zero.
Reduce N by x.
Append Y , X times to the answer.
If number can be formed.
Otherwise.
Driver code"
Solution in Python:
assistant
#Here is code to largest number made up of X and Y with count of X divisible by Y and of Y by X and the other steps required.
 def largestNumber ( n , X , Y ) :
	maxm = max ( X , Y )
	Y = X + Y - maxm
	X = maxm
	Xs = 0
	Ys = 0
	while ( n > 0 ) :
		if ( n % Y == 0 ) :
			Xs += n
			n = 0
		else :
			n -= X
			Ys += X
	if ( n == 0 ) :
		while ( Xs > 0 ) :
			Xs -= 1
			print ( X , end = ' ' )
		while ( Ys > 0 ) :
			Ys -= 1
			print ( Y , end = ' ' )
	else :
		print ( " - 1" )
n = 19
X = 7
Y = 5
largestNumber ( n , X , Y )