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mary hw
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########### hw 4 ############# | |
print([num for num in xrange(1000) if sum(map(int, str(num))) == 10]) | |
################ hw 5 ################ | |
def occ(n, specific): | |
for num in xrange(n): | |
times = len([x for x in str(num) if str(specific) == x]) | |
yield (num, times) | |
for num, times in occ(100,2): | |
print("%s -> %s" % (num,times)) | |
################ hw 6 ################ | |
def is_prime(num): | |
if num in [0,1]: | |
return False | |
if num == 2: | |
return True | |
return False if num & 1 == 0 else not any(num % n == 0 for n in xrange(3,int(num**0.5),2)) | |
for n in xrange(100): | |
print("%s %s prime" % (n,"is" if is_prime(n) else "is not")) | |
################ hw 7 ################ | |
def fib(num): | |
a,b = 0,1 | |
while a + b < num: | |
a, b = b, a + b | |
yield b | |
print(list(fib(100))) |
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