26 lines
387 B
Python
26 lines
387 B
Python
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'''
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>25<EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD>Ŀ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>1+2!+3!+...+20!<EFBFBD>ĺ<EFBFBD>
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1.<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ǰ<EFBFBD><EFBFBD>ۼӱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>۳ˡ<EFBFBD>
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2.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD>룺
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'''
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#<23><><EFBFBD><EFBFBD>һ
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n = 0
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s = 0
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t = 1
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for n in range(1,21):
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t *= n
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s += t
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print '1! + 2! + 3! + ... + 20! = %d' % s
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#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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s = 0
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l = range(1,21)
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def op(x):
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r = 1
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for i in range(1,x + 1):
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r *= i
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return r
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s = sum(map(op,l))
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print '1! + 2! + 3! + ... + 20! = %d' % s
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