部分整理自Stack Overflow: Java String: Q: I have some question that I wonder about. I know that string are immutable in Java and therefore a new string obj ...
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编程语言 时间:
2019-03-17 13:57:23
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135
ABSTRACT In this paper, we propose a novel Deep Reinforcement Learning framework for news recommendation . Therefore, to address the aforementioned ch ...
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其他好文 时间:
2019-03-05 21:29:09
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251
跨域访问出错信息:No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:9100' is therefore not allowed access. ...
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Web程序 时间:
2019-02-13 20:54:52
阅读次数:
209
There are N (1 ≤ N ≤ 105) cities on land, and there are N - 1 wires connecting the cities. Therefore, each city can transmit electricity to all other ...
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其他好文 时间:
2019-02-07 22:05:50
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153
https://leetcode.com/problems/sort-characters-by-frequency/ Given a string, sort it in decreasing order based on the frequency of characters. Example ...
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其他好文 时间:
2019-01-30 20:53:43
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199
在Manage Roles中设置Table Filter: The USERNAME() DAX function returns the user's domain login in the format domain\user) locally, but returns the user pri ...
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其他好文 时间:
2019-01-30 15:57:15
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238
https://leetcode.com/tag/array/ ...
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编程语言 时间:
2019-01-20 11:46:13
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171
想了想还是分开来发好了 求 $B$ 满足 $AB \equiv 1 \pmod{x^{2n}}$ 假设已经求出 $B_0$ 满足 $AB_0 \equiv 1 \pmod{x^n}$ $\because B B_0\equiv 0 \pmod{x^n}$ $\therefore B^2 2BB_0+ ...
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其他好文 时间:
2019-01-13 14:25:13
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186
题面 题解 数位dp都是套路题 设$f[i][0/1][k][l]$表示$dp$到第$i$位,是否卡上界,现在$1$的个数为$k$,所求的$1$的个数为$l$的方案数 转移看一下代码吧,很好懂的。 $\because10^7+7$不是质数,$\therefore\;f$要开$\text{long l ...
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其他好文 时间:
2019-01-05 13:29:06
阅读次数:
158