n=8
for i in range(1,5):
for j in range(n-2,i,-1):
if s[j] < s[j+1]:
s[j],s[j+1]=s[j+1],s[j]
该程序段实现的是( )
A.s[0]到 s[3]的升序排列 | B.s[4]到 s[7]的升序排列 |
C.s[2]到 s[5]的降序排列 | D.s[1]到 s[4]的降序排列 |
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