cp_library/alg/iter/enumerate_rev_fn.py

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• Last update: 2025-03-30 20:17:47+09:00

Code

import cp_library.alg.iter.__header__
from typing import Reversible

def enumerate_rev(A: Reversible, start: int = 0):
    start -= 1
    for i in range(len(A)-1,-1,-1):
        yield (start:=start+1), A[i]

'''
╺━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╸
             https://kobejean.github.io/cp-library               
'''
from typing import Reversible

def enumerate_rev(A: Reversible, start: int = 0):
    start -= 1
    for i in range(len(A)-1,-1,-1):
        yield (start:=start+1), A[i]

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