17.3---阶乘尾多少个0(CC150)

  思路,其实这题easy,就是看多少个5.

答案:

    public static int getFactorSuffixZero(int n) {
        // write code here
        int res = 0;
        while(n != 0){
            res += n / 5;
            n = n / 5;
        }
        
        
        return res;
    }
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posted @ 2016-01-05 14:46  仔细思考一切  阅读(210)  评论(0)    收藏  举报