Python: Find the last occurrence of a specified item in a given list
Python List: Exercise - 162 with Solution
Write a Python program to find the last occurrence of a specified item in a given list.
Pictorial Presentation:
Sample Solution:
Python Code:
# Define a function called 'last_occurrence' that finds the last occurrence of a character 'ch' in a list of characters 'l1'.
def last_occurrence(l1, ch):
# Join the list of characters into a single string and find the last index of the character 'ch'.
return ''.join(l1).rindex(ch)
# Create a list 'chars' containing multiple characters.
chars = ['s', 'd', 'f', 's', 'd', 'f', 's', 'f', 'k', 'o', 'p', 'i', 'w', 'e', 'k', 'c']
# Print a message indicating the original list.
print("Original list:")
print(chars)
# Set the character 'ch' to 'f' and print a message indicating the last occurrence of 'ch' in the list, then call the 'last_occurrence' function.
ch = 'f'
print("Last occurrence of", ch, "in the said list:")
print(last_occurrence(chars, ch))
# Set the character 'ch' to 'c' and print a message indicating the last occurrence of 'ch' in the list, then call the 'last_occurrence' function.
ch = 'c'
print("Last occurrence of", ch, "in the said list:")
print(last_occurrence(chars, ch))
# Set the character 'ch' to 'k' and print a message indicating the last occurrence of 'ch' in the list, then call the 'last_occurrence' function.
ch = 'k'
print("Last occurrence of", ch, "in the said list:")
print(last_occurrence(chars, ch))
# Set the character 'ch' to 'w' and print a message indicating the last occurrence of 'ch' in the list, then call the 'last_occurrence' function.
ch = 'w'
print("Last occurrence of", ch, "in the said list:")
print(last_occurrence(chars, ch))
Sample Output:
Original list: ['s', 'd', 'f', 's', 'd', 'f', 's', 'f', 'k', 'o', 'p', 'i', 'w', 'e', 'k', 'c'] Last occurrence of f in the said list: 7 Last occurrence of c in the said list: 15 Last occurrence of k in the said list: 14 Last occurrence of w in the said list: 12
Flowchart:
Python Code Editor:
Previous: Write a Python program to check if a given list is strictly increasing or not. Moreover, If removing only one element from the list results in a strictly increasing list, we still consider the list true.
Next: Write a Python program to get the index of the first element which is greater than a specified element.
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