n=8
for i in range(n-1):
for j in range(n-1,i,-1):
if a[j] < a[j-1] and j %4!=0:
a[j-1],a[j]=a[j],a[j-1]
该程序段实现的是( )
A.a[0]到a[7]升序排序 | B.a[4]到a[7]升序排序 |
C.a[0]到a[7]的数据对4取余之后升序排序 | D.a[0]到a[3]、a[4]到a[7]分别升序排序 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2