import random
q=[""]*100;head=0;tail=0
ans=""
s=input()
for i in range(len(s)):
q[tail]=s[i];tail+=1
while head<tail:
x=random.randint(0,1)#随机生成整数0或1
ans+=q[head];head+=1
if head < tail and x%2==0:
q[tail]=q[head]
tail+=1;head+=1
print(ans)
当s的输入值为"Hello-world!"时,程序输出的结果不可能是( )
A.Hll-wrd!eool | B.Hell-wordol! | C.Hlo-ord!elwl | D.eHll-wrd!ool |
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