human
Nontrivial undulant Numbers | Function to check if a string is double string or not.
a and b should not be equal.
Condition to check if length is odd make length even.
First half of s.
Second half of s.
Double string if first and last half are equal.
Function to check if N is an Nontrivial undulant number.
Driver Code"
Solution in Python:
 What is a code to nontrivial undulant Numbers and the other steps required?
assistant
#Here is code to nontrivial undulant Numbers and the other steps required.
 def isDouble ( num ) :
	s = str ( num )
	l = len ( s )
	if ( s [ 0 ] == s [ 1 ] ) :
		return False
	if ( l % 2 == 1 ) :
		s = s + s [ 1 ]
		l += 1
	s1 = s [ : l // 2 ]
	s2 = s [ l // 2 : ]
	return s1 == s2
def isNontrivialUndulant ( N ) :
	return N > 100 and isDouble ( N )
n = 121
if ( isNontrivialUndulant ( n ) ) :
	print ( " Yes " )
else :
	print ( " No " )