2490_circular_sentence.py

# 2490. Circular Sentence
# Difficulty: Easy
# Topics: String

class Solution:
    def isCircularSentence(self, sentence: str) -> bool:
    
        n = len(sentence)
        
        if sentence[0] != sentence[n-1]:
            return False
            
        for i in range(1, n-1):
            
            if sentence[i] == ' ':

                if sentence[i-1] != sentence[i+1]:
                    return False

        return True