numpy.py

A = [0] * N
↓
A = np.zeros(N, dtype = np.int64)


A = [1] * N
↓
A = np.ones(N, dtype = np.int64)


A = [float('inf')] * N
↓
A = np.empty(N, dtype = np.int64)
A[:] = np.iinfo(np.int64).max


A = [1, 2, 3, 4]
↓
A = np.array([1, 2, 3, 4])


A = list(map(int, input().split()))
↓
A = np.fromstring(input(), dtype = np.int64, sep = ' ')


A = list(range(N))
↓
A = np.arange(N)


B = [a - 1 for a in A]
↓
B = A - 1


for i in range(len(A)):
    A[i] %= 2
↓
A %= 2


C = [A[i] ^ B[i] for i in range(len(A))]
↓
C = A ^ B


B = [a for a in A if a != 0]
↓
B = np.nonzero(A)[0]


len([a for a in A if a < 0])
↓
np.count_nonzero(A < 0) または np.sum(A < 0)


all(a > 0 for a in A)
↓
all(A > 0) または np.all(A > 0) または (A > 0).all() (any も同様)


for i in range(j, k + 1):
    a[i] = 1
または A[j:k] = [1] * (k - j)
↓
A[j:k] = 1


sum(A)
↓
sum(A) または np.sum(A) または A.sum() (max, min, mean 等も同様)


for i in range(len(A) - 1):
    A[i + 1] += A
↓
A = np.cumsum(A) または A = A.cumsum()


A.sort()
↓
A = np.sort(A) または A.sort()