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题解 | 数位之和

n = str(abs(int(input()))) print(sum(int(i) for i in n))

2025-07-16

1 23

题解 | 牛牛学数列5

懒得写矩阵快速幂了 n = int(input()) a,b = 1,1 for _ in range(n-2): a,b = a+b,a print(a)

2025-07-16

3 32

题解 | 牛牛学数列4

这题很显然能O1，但是我就要n^2，你把我怎么滴！ n = int(input()) print(sum(sum(i for i in range(j+1)) for j in range(n+1)))

2025-07-16

1 29

题解 | 牛牛学数列2

n = int(input()) s = 0 for i in range(1,n+1): s += 1/i print(s)

2025-07-16

1 32

题解 | 牛牛学数列

好累，不想写一行了，暴力偷懒 n = int(input()) s = 0 for i in range(1,n+1): if i%2 == 1: s += i else: s -= i print(s)

2025-07-16

0 28

题解 | 素数判断

@烤点老白薯(637174235)这是真爽了 [print("No" if (lambda x: x == 1 or (x!=2 and any(x%i==0 for i in range(2,int(x**0.5)+1))))(int(input())) else "...

2025-07-16

1 36

题解 | 多组数据a+b III

放弃了，好像写不出一行 while 1: a,b = map(int,input().split()) if a == b == 0: exit() print(a+b)

2025-07-16

2 50

题解 | 多组输入a+b II

压行技巧2@烤点老白薯(637174235) [print(sum(map(int, input().split()))) for _ in range(int(input()))]

2025-07-16

1 29

题解 | 四季

print((lambda m:'spring' if 3 <= m <= 5 else 'summer' if 6 <= m <= 8 else 'autumn' if 9 <= m <= 11 else 'winter')(int(input()[-2:]))...

2025-07-16

1 22

题解 | 最大最小值

print((lambda a,b,c:f"The maximum number is : {max(a,b,c)}\nThe minimum number is : {min(a,b,c)}")(*map(int, input().split())))

2025-07-16

1 24