cp_library/math/series/sum_of_naturals_fn.py

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

Code

import cp_library.math.series.__header__

def sum_of_naturals(n):
    return n * (n + 1) // 2

'''
╺━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╸
             https://kobejean.github.io/cp-library               
'''

def sum_of_naturals(n):
    return n * (n + 1) // 2

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