LEETCODE 914 少了一种测试用例 - V2EX
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good1uck

LEETCODE 914 少了一种测试用例

  •  
  •   good1uck Jul 4, 2019 16307 views
    This topic created in 2492 days ago, the information mentioned may be changed or developed.
    https://leetcode-cn.com/problems/x-of-a-kind-in-a-deck-of-cards/comments/

    输入: [10]
    输出:[false]

    没有这个用例可能导致某种正则法可以提交成功。感兴趣的尝试一下
    10 replies    2019-07-08 02:01:44 +08:00
    good1uck
        1
    good1uck  
    OP
       Jul 4, 2019
    CEBBCAT
        2
    CEBBCAT  
       Jul 4, 2019
    这个是不是可以用长度为 10000bit 的内存块去做?就像统计单次出现的数字那种
    CEBBCAT
        3
    CEBBCAT  
       Jul 4, 2019
    @CEBBCAT #2 想错了,忽略我
    geelaw
        4
    geelaw  
       Jul 4, 2019 via iPhone
    简单问题复杂化的高手了

    以及我没有理解

    if(group.length==1){
    return group[0].split(',').join('').length>1?true:false
    }

    是在干什么,是 contrived 写法(故意展示需要测试 [10])么?还是本来有别的含义?

    最后,缺少任何一个测试数据都可以导致一个不正确的程序通过。
    good1uck
        5
    good1uck  
    OP
       Jul 4, 2019 via Android
    大佬你好,那段 if 用来处理[ '1,' ]或['10,'] 这样的只含一个项的数组
    最近开始做 oj,一时没有想到简便一些的法子

    这不是我的最终解法,是在 debug 过程中发现的
    CEBBCAT
        6
    CEBBCAT  
       Jul 7, 2019
    @good1uck #5 你忘了 @geelaw
    CEBBCAT
        7
    CEBBCAT  
       Jul 7, 2019
    @Leetcode 太唬了,(一)点击 Log out 没效果,(二)没验证手机号的会员比游客权限低,哈哈哈
    geelaw
        8
    geelaw  
       Jul 7, 2019 via iPhone
    @good1uck #5 只含一项的数组答案永远是 false,为什么 if 里面还要再判断?

    简单的方法不需要这些字符串操作弄来弄去,计数+计算最大公因数就完了。
    good1uck
        9
    good1uck  
    OP
       Jul 8, 2019 via Android
    @geelaw _(:з」∠)_ 不知道我当时想了啥
    good1uck
        10
    good1uck  
    OP
    /div>   Jul 8, 2019 via Android
    不过计长度时那个数组已经处理过了..还可以是['1,1,'] 然后长度也是 1
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