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6-10 Strongly Connected Components (30分)
Write a program to find the strongly connected components in a digraph. Format of functions: void StronglyConnectedComponents( Graph G, void (*visit)( ...
分类:其他好文   时间:2020-02-02 16:07:23    阅读次数:263
PAT Advanced 1013 Battle Over Cities (25分)
It is vitally important to have all the cities connected by highways in a war. If a city is occupied by the enemy, all the highways from/toward that c ...
分类:其他好文   时间:2020-02-01 01:04:58    阅读次数:91
题解 CF1196E Connected Component on a Chessboard
感觉这题还可以 因为总空间比输入数量 _不知高到哪里去了_ ,所以完全不需要考虑放不下的问题 从 贪心 的角度考虑,如果要使相差数量巨大的$b$和$w$能够成功放下来,应该使这些方块尽量分散(似乎有点抽象) 来一发图解 作者因为太懒于是决定直接以B表示黑色,W表示白色 假设有一组方块拼成了一个正方形 ...
分类:其他好文   时间:2020-01-31 17:22:10    阅读次数:63
PAT Advanced 1003 Emergency (25分)
As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some ro ...
分类:其他好文   时间:2020-01-31 12:10:59    阅读次数:88
显示当前的连接状况
show status like 'Threads%'; Threads_cached 5 (当前线程缓存中有多少空闲线程)Threads_connected 127 (当前连接的线程)Threads_created 7295 (从数据库启动,已经创建过的线程)Threads_running 1 ( ...
分类:其他好文   时间:2020-01-31 10:27:05    阅读次数:74
pytorch基础(二)
[TOC] An easy way 使用 来更快地构建神经网络: Save and reload 两种保存网络模型的方法: 读取模型: 只读取模型参数: Train on batch 通过 中的 参数来控制加载数据时的batch大小 打印结果: Optimizers 比较不同的优化方法对网络的影响: ...
分类:其他好文   时间:2020-01-30 21:16:11    阅读次数:87
LeetCode 466 - Count The Repetitions - Hard ( Python)
Define S = [s,n] as the string S which consists of n connected strings s. For example, ["abc", 3] ="abcabcabc". On the other hand, we define that stri ...
分类:编程语言   时间:2020-01-30 10:06:46    阅读次数:88
Fully Connected Layer:全连接层
1. 全连接层:主要用于分类,把分布式特征映射到样本标记空间。全连接层的每一个结点都与上一层的所有结点相连,用来把前边提取到的特征综合起来。全连接层中的权值矩阵Wi的每一行相当于一个分类模版,xi与Wi矩阵乘法,即可得到xi与每一个模板的匹配度,从中选取得分最高的匹配模板。 在 CNN 结构中,经多 ...
分类:其他好文   时间:2020-01-29 21:49:30    阅读次数:232
并查集判断几个环
You are given an undirected graph consisting of nn vertices and mm edges. Your task is to find the number of connected components which are cycles. He ...
分类:其他好文   时间:2020-01-28 19:13:14    阅读次数:152
[LeetCode] 694. Number of Distinct Islands
Given a non-empty 2D array grid of 0's and 1's, an island is a group of 1's (representing land) connected 4-directionally (horizontal or vertical.) Yo ...
分类:其他好文   时间:2020-01-24 09:22:44    阅读次数:62
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