python问题请教一下

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img

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![img](https://img-mid.csdnimg.cn/release/static/image/
mid/ask/513683234666132.jpg "#left")

不会了请帮帮忙谢谢

1

import random
boy1 = boy2 = 0
girl1 = girl2 = 0
n = int(input())/100
for i in range(100000):
    x = random.randint(0, 1)#0为女,1为男
    if x == 1:
        boy1 += 1
    else:
        girl1 += 1
        x = random.randint(0, 1)
        if x == 1:
            boy2 += 1
        else:
            girl2 +=1
boy = boy1 + boy2 + girl2*n
girl = girl1 + girl2*(1-n)

s = boy/girl
print("%.2f" % s)