Consumer behaviour is the study of when,why,how and where people do or don’t buy a product。 用户行为一般指用户通过中间资源,购买、使用和评价某种产品的记录。同时辅以用户、资源、产品自身及环境的信息。 用户行为 ...
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其他好文 时间:
2018-09-11 11:21:37
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161
C*M....死于update的一个long long写成int了 心累 不想写过程了 ******** 树状数组,一个平的一个斜着的,怎么斜都行 题库链接:https://nanti.jisuanke.com/t/31460 ...
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其他好文 时间:
2018-09-11 01:02:04
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149
题目链接: https://nanti.jisuanke.com/t/31458 题解: 建立两个树状数组,第一个是,a[1]*n+a[2]*(n-1)....+a[n]*1;第二个是正常的a[1],a[2],a[3]...a[n] 262144K Morgana is learning compu ...
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其他好文 时间:
2018-09-10 19:46:50
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395
题目链接: https://nanti.jisuanke.com/t/31458 题解: 建立两个树状数组,第一个是,a[1]*n+a[2]*(n-1)....+a[n]*1;第二个是正常的a[1],a[2],a[3]...a[n] 262144K Morgana is learning compu ...
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其他好文 时间:
2018-09-10 19:43:15
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187
Ryuji is not a good student, and he doesn't want to study. But there are n books he should learn, each book has its knowledge a[i]a[i]. Unfortunately, ...
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编程语言 时间:
2018-09-10 19:08:45
阅读次数:
216
[TOC] A. Hard to prepare B. BE, GE or NE C. Cacti Lottery D. Easy Math E. End Fantasy VIX F. Features Track G. Trace H. Ryuji doesn't want to study I. ...
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其他好文 时间:
2018-09-10 11:15:37
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305
Ryuji is not a good student, and he doesn't want to study. But there are n books he should learn, each book has its knowledge a[i]a[i]. Unfortunately, ...
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其他好文 时间:
2018-09-09 23:11:16
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289
262144K Ryuji is not a good student, and he doesn't want to study. But there are n books he should learn, each book has its knowledge a[i]a[i]. Unfort ...
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其他好文 时间:
2018-09-09 22:15:52
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252
现代计算机的原型 冯·诺依曼 1946年,普林斯顿高等研究院(the Institute for Advance Study at Princeton,IAS )开始设计“存储程序”计算机,被称为IAS计算机. 冯·诺依曼结构最重要的思想是“存储程序(Stored-program)” 工作方式: 任 ...
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其他好文 时间:
2018-09-08 18:01:48
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503
study from: 静态主席树:https://blog.csdn.net/a1351937368/article/details/78884526 动态主席树:https://blog.csdn.net/WilliamSun0122/article/details/77885781 静态: h ...
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其他好文 时间:
2018-09-07 22:51:43
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191