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.
Sample Solution:
Python Code:
def last_occurrence(l1, ch):
return ''.join(l1).rindex(ch)
chars = ['s','d','f','s','d','f','s','f','k','o','p','i','w','e','k','c']
print("Original list:")
print(chars)
ch = 'f'
print("Last occurrence of",ch,"in the said list:")
print(last_occurrence(chars, ch))
ch = 'c'
print("Last occurrence of",ch,"in the said list:")
print(last_occurrence(chars, ch))
ch = 'k'
print("Last occurrence of",ch,"in the said list:")
print(last_occurrence(chars, ch))
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
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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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Python: Tips of the Day
Returns True if the provided function returns True for every element in the list, False otherwise:
Example:
def tips_every(lst, fn=lambda x: x): return all(map(fn, lst)) print(tips_every([2, 4, 3], lambda x: x > 1)) print(tips_every([1, 2, 3]))
Output:
True True
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