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leetcode全解
1. Two Sum 2. Add Two Numbers 3. Longest Substring Without Repeating Characters ...
分类:其他好文   时间:2019-10-07 00:43:53    阅读次数:77
while loop
1. create a function to generate file with the filename start with 10 random characters ...
分类:其他好文   时间:2019-10-06 18:26:43    阅读次数:77
【LeetCode】20. Valid Parentheses
Difficulty:easy More:【目录】LeetCode Java实现 Description https://leetcode.com/problems/valid-parentheses/ Given a string containing just the characters '( ...
分类:其他好文   时间:2019-10-04 23:20:46    阅读次数:186
Lexical Analysis & State Diagrams
Assignment 2: Lexical Analysis & State DiagramsLexical Analysis (Overview):Lexical analysis is the process of converting a sequence of characters from ...
分类:其他好文   时间:2019-10-04 18:49:31    阅读次数:71
Python 内置函数进制转换的用法(十进制转二进制、八进制、十六进制)
使用Python内置函数:bin()、oct()、int()、hex()可实现进制转换。 先看Python官方文档中对这几个内置函数的描述: bin(x)Convert an integer number to a binary string. The result is a valid Pytho ...
分类:编程语言   时间:2019-10-04 09:43:42    阅读次数:136
CodeForces (字符串从字母a开始删除k个字母)
You are given a string s consisting of n lowercase Latin letters. Polycarp wants to remove exactly k characters (k≤n) from the string s. Polycarp uses ...
分类:其他好文   时间:2019-10-03 20:23:26    阅读次数:94
LC 3. Longest Substring Without Repeating Characters
题目描述 Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The an ...
分类:其他好文   时间:2019-10-03 17:47:38    阅读次数:75
Codeforces Round #590 (Div. 3) D. Distinct Characters Queries(线段树, 位运算)
链接: https://codeforces.com/contest/1234/problem/D 题意: You are given a string s consisting of lowercase Latin letters and q queries for this string. Re ...
分类:其他好文   时间:2019-10-03 00:48:22    阅读次数:198
Codeforces Round #590 (Div. 3)
D. Distinct Characters Queries Description You are given a string ss consisting of lowercase Latin letters and qq queries for this string. Recall that ...
分类:其他好文   时间:2019-10-02 14:37:51    阅读次数:112
python3 UnicodeEncodeError错误,cx_oracle模块执行sql报错:UnicodeEncodeError: 'ascii' codec can't encode characters in position
问题描述: 写了一个执行sql的模块,引用了cx_oracle,在windows机器上完美运行,移植到Centos上就会报错, UnicodeEncodeError: 'ascii' codec can't encode characters in position 检查过程: 代码编码为utf-8 ...
分类:数据库   时间:2019-09-30 14:29:29    阅读次数:97
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