Lecture 95:- Last Occurence Of A Char

To find the last occurrence of a specific character in a given string, you can iterate through the string from right to left and stop when you encounter the desired character. Here's a Python function to achieve this:

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def last_occurrence_of_char(s, char):    for i in range(len(s) - 1, -1, -1):        if s[i] == char:            return i    return -1 # Example usage: input_string = "Hello, World!" target_char = "o" index = last_occurrence_of_char(input_string, target_char) if index != -1:    print(f"The last occurrence of '{target_char}' is at index: {index}") else:    print(f"'{target_char}' not found in the string.")

In this example, we are finding the last occurrence of the character "o" in the string "Hello, World!" and printing its index. The output will be:

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The last occurrence of 'o' is at index: 8

Keep in mind that Python uses 0-based indexing, so the first character's index is 0, the second character's index is 1, and so on. If the character is not found in the string, the function will return -1 to indicate that the character was not present.