9. 41.Py

   n=2992
   def py(n,m):
       total = 0
       while n>0:
           total+=n%m
           n=n/m
       return total
   print py(n,10)==py(n,16)==py(n,12) and "Yes" or "No"
   

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10. 40.Integer solutions

    a=8
    b=15
    x=a ** 2 - 4 * b
    print x>=0 and x**0.5==int(x**0.5) and "YES" or "NO"
    

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11. 38.Simple list of conversion

    L=['abc','d','efg']
    
    print "".join([x for x in L])
    

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12. 37.pythagorean theorem

    a=3
    b=4
    
    print "%.3f" % (a**2+b**2)**0.5
    

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13. 36.Maximum not continuous subsequence

    L = [2, -3, 3, 50]
    
    for i in range(2,len(L)):
        L[i]=(max(max(L[0:i-1]),0)+L[i])
    
    print max(L)
    

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14. 35.Maximum continuous subsequence

    maxim=0
    sum=0
    for i in range(len(L)):
        if L[i]<0:
            maxim=max(sum,maxim)
            sum=0
        else:
            sum+=L[i]
    
    print max(sum,maxim) # don't forget the last one
    

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15. 34.The password generated

    a = 1
    b = 77
    x = 1
    y = 14
    
    lister, ans, a = [], [], a%b*10
    while a not in lister:
        lister.append(a)        # 1. not includes x of x.123456
        ans.append(a // b)
        a = (a % b)*10
    
    nolooplen = lister.index(a) # when the iteration appears in ans
    looplen = len(ans ...

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16. 33.Big power operation

    a=9
    n=50
    def pow_mod(a,n,mod):  # a**50=(a**2)**25, a**25=(a**2)**12*a,
        res = 1
        while n > 0 :
            if n % 2 == 1:  # if n is odd, extract new_a%mod and multiply res
                res = res * a % mod
            a = a * a % mod # 1.a=new_a ...

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17. 32.Triangle shape

    a=3
    b=4
    c=5
    [a,b,c]=sorted([a,b,c])
    print a+b<c and 'W' or a*a + b*b < c*c and 'D' or a*a + b*b == c*c and 'Z'or 'R'
    

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18. 31.The number of peaks

    h=[0.9,1.2,1.22,1.1,1.6,0.99]
    print sum([1 for i in range(1,len(h)-1) if h[i]>h[i-1] and h[i]>h[i+1]])
    

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