胆小的候选人不愿吃饼

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题解 | 上三角矩阵判定

n = int(input()) # 读取矩阵阶数 is_upper_triangular = True # 假设是上三角矩阵 for i in range(n): row = list(map(int, input().split())) for j in range(i):...

2025-07-21

0 13

题解 | 数组计数维护

z = int(input()) for i in range(z): n,k=map(int,input().split()) a=list(map(int,input().split())) S=cnt=0 for j in range(n): i...

2025-07-20

0 11

题解 | 牛牛的数学作业

T = int(input()) for i in range(T): n = int(input()) a=list(map(int,input().split())) avg = sum(a)/len(a) c = max(a)-min(a) b=0 ...

2025-07-20

0 13

题解 | 二维斐波那契数列

MOD = 10 ** 9 + 7 a, b = map(int, input().split()) abs = [[0] * (b + 1) for _ in range(a + 1)] # 改正定义 abs[1][1] = 1 # 初始化第一列 if a >= 2: for...

2025-07-19

0 14

题解 | 牛牛学数列6

n = int(input()) s = [0,1,1] if n >=4: for i in range(3,n): s.append(s[i-3]+2*s[i-2]+s[i-1]) print(s[n-1]) 定义列表，然后再对应的位置放上对应的公式

2025-07-19

0 13

题解 | 牛牛数数

n = int(input()) str1 = str(n) for i in range(1,n+1): if i%4==0 or '4' in str(i): continue else: print(i)

2025-07-19

0 17

题解 | 牛牛学数列4

a = int(input()) b=0 for i in range(1,a+1): b = b+((i+1)*i)/2 print(int(b))

2025-07-19

0 17

题解 | 最大的差

n=input() a = list(map(int, input().split())) b=int(max(a)) - int(min(a)) print(b)

2025-07-18

0 13

题解 | 牛牛学数列2

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

2025-07-18

0 16

题解 | 多组数据a+b III

while True: a, b = map(int, input().split()) if a + b == 0: break print(a + b)

2025-07-18

0 14