计算 s=1+2+3+……+10 时,可以使用语句 s=s+i 来实现累加。为了计算 s=12+22+32+……+102 ,可以使用下列哪个语句实现平方之后再累加 - V2EX
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Dynamicer

计算 s=1+2+3+……+10 时,可以使用语句 s=s+i 来实现累加。为了计算 s=12+22+32+……+102 ,可以使用下列哪个语句实现平方之后再累加

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  •   Dynamicer May 23, 2014 5016 views
    This topic created in 4357 days ago, the information mentioned may be changed or developed.
    计算s=1+2+3+……+10时,可以使用语句s=s+i来实现累加。为了计算s=12+22+32+……+102 ,可以使用下列哪个语句实现平方之后再累加。[注:下面表达式中的星号代表乘法符号]
    A.s=s*i B.s=s*i*i C.s=s+i*i D.s=s+i+i
    7 replies    2014-05-23 21:24:42 +08:00
    raptium
        1
    raptium  
       May 23, 2014 via Android   1
    楼主你好歹写成 1^2 才能让人看懂啊
    Mutoo
        2
    Mutoo  
       May 23, 2014
    c
    qiayue
        3
    qiayue  
    PRO
       May 23, 2014   1
    这种考试题目直接发上来问好吗?

    而且,这也太简单了吧
    lizheming
        4
    lizheming  
       May 23, 2014
    看了半天看了一楼才明白啥意思...话说平方和不是有公式咩?这个不是最简单的?

    s = n*(n+1)*(2*n+1)/6
    niseter
        5
    niseter  
       May 23, 2014
    有公式用公式,别学编程学傻了,这种题循环再牛逼哪有高斯算法牛逼啊
    jsonline
        6
    jsonline  
       May 23, 2014
    伸手党?
    aec4d
        7
    aec4d  
       May 23, 2014
    sum([i**2 for i in range(1,11)]) 当然有现成公式不用是傻X>_<
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