在 skilearn 的手写数据集中,每个数据点都是 0 到 9 之间手写数字的一张 8*8 灰度图像。用 PCA 将其降维到二维,并可视化数据点,如下: 1、digits 数据演示: from sklearn.datasets import load_digits import matplotli ...
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其他好文 时间:
2019-11-26 19:58:32
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106
package bigint; /** * This class encapsulates a BigInteger, i.e. a positive or negative integer * with any number of digits, which overcomes the compu ...
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编程语言 时间:
2019-11-17 14:43:40
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85
Given a non-empty array of digits representing a non-negative integer, plus one to the integer. The digits are stored such that the most significant d ...
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其他好文 时间:
2019-11-17 10:56:47
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52
Given a 32-bit signed integer, reverse digits of an integer. Example 1: Input: 123 Output: 321 Example 2: Input: -123 Output: -321 Example 3: Input: 1 ...
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其他好文 时间:
2019-11-17 10:33:14
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62
链接: https://vjudge.net/problem/LightOJ 1282 题意: You are given two integers: n and k, your task is to find the most significant three digits, and least ...
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其他好文 时间:
2019-11-13 09:19:03
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95
A. Paint the Numbers Description Solution 水题 B. Koala and Lights Description Solution 模拟到1e4。 C. Paint the Digits Description 给出一个序列,将序列每个值染色为1或2。 问能否 ...
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其他好文 时间:
2019-11-10 19:37:44
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93
You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contai ...
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其他好文 时间:
2019-11-10 17:34:22
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104
原题链接在这里:https://leetcode.com/problems/split-array-into-fibonacci-sequence/ 题目: Given a string S of digits, such as S = "123456579", we can split it in ...
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其他好文 时间:
2019-11-10 13:42:47
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78
__ "Codeforces Round 589 (Div. 2)" __ __ "A. Distinct Digits" __ __思路:水题__ AC代码 ...
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其他好文 时间:
2019-11-05 21:56:30
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115
You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contai ...
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其他好文 时间:
2019-11-03 12:24:14
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83