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๐ค๋ฌธ์ ํด๊ฒฐ
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D3 | ์ํ
๐จ 1๋ถํฐ N ๊น์ง ์ซ์์ ํฉ: N * (N + 1) / 2
๐จ 1๋ถํฐ N ๊ฐ์ ํ์์ ํฉ: N ** 2
๐จ 1๋ถํฐ N ๊ฐ์ ์ง์์ ํฉ: N * (N + 1)
๐ป์์ค ์ฝ๋
# ์ธํ
T = int(input())
Ns = [int(input()) for _ in range(T)]
# ํ์ด
results = []
for tc in range(T):
n = Ns[tc]
result = []
# ์ ์ฒด: n(n+1)//2
result.append(n*(n+1)//2)
# ํ์: n**2
result.append(n**2)
# ์ง์: n(n+1)
result.append(n*(n+1))
results.append(result)
# ๊ฒฐ๊ณผ
for tc in range(T):
print(f'#{tc+1}', end=" ")
print(*results[tc])
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