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#41286: python


suyueh (suyueh)

a044. 空間切割 -- 許介彥 | From: [125.229.229.84] | 發表日期: 2024-07-16 14:06
import sys
def max_regions(n):
    return (n**3 + 5*n + 6) // 6
def main():
    input = sys.stdin.read().strip()
    numbers = list(map(int, input.split()))
    for n in numbers:
        print(max_regions(n))
if __name__ == "__main__":
    main()
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