Python: Check if a given string contains two similar consecutive letters

Python Basic - 1: Exercise-124 with Solution

Write a Python program to check if a given string contains two similar consecutive letters.

Sample Solution-1:

Python Code:

def test(str1):
    return any(c1 == c2 for c1, c2 in zip(str1, str1[1:]))
str = "PHP"
print("Original string: ",str)
print("Check for consecutive similar letters! ",test(str))
str = "PHHP"
print("\nOriginal string: ",str)
print("Check for consecutive similar letters! ",test(str))
str = "PHPP"
print("\nOriginal string: ",str)
print("Check for consecutive similar letters! ",test(str))

Sample Output:

Original string:  PHP
Check for consecutive similar letters!  False

Original string:  PHHP
Check for consecutive similar letters!  True

Original string:  PHPP
Check for consecutive similar letters!  True

Flowchart:

Sample Solution-2:

Python Code:

def test(str1):
    for el in str1:
        if el*2 in str1:
            return True
    return False

str = "PHP"
print("Original string: ",str)
print("Check for consecutive similar letters! ",test(str))
str = "PHHP"
print("\nOriginal string: ",str)
print("Check for consecutive similar letters! ",test(str))
str = "PHPP"
print("\nOriginal string: ",str)
print("Check for consecutive similar letters! ",test(str))

Sample Output:

Original string:  PHP
Check for consecutive similar letters!  False

Original string:  PHHP
Check for consecutive similar letters!  True

Original string:  PHPP
Check for consecutive similar letters!  True

Flowchart:

Python Code Editor:

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