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传送门DescriptionAs the new term comes, the Ignatius Train Station is very busy nowadays. A lot of student want to get back to school by train(because th...
E - Train Problem I
As the new term comes, the Ignatius Train Station is very busy nowadays. A lot of student want to get back to school by train(because the trains in th...
[LeetCode&Python] Problem 383. Ransom Note
Given an arbitrary ransom note string and another string containing letters from all the magazines, write a function that will return true if the rans...
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#include<stdio.h>int main(){ int n; while(scanf("%d",&n)!=EOF){ int x1,x2,i,x; x1=; x2=; if(n==) printf(""); if(n==)...
CF1096D Easy Problem(DP)
题意：给出一个字符串，去掉第i位的花费为a[i]，求使字符串中子串不含hard的最小代价。题解：这题的思路还是比较套路的， dp[i][kd]两维，kd=0表示不含d的最小花费，1表示不含rd的，2表示不含ard的，3表示不含hard的那么转移方程就显而易见了，一言概之就是如果前面没有，我这也...
01 The Learning Problem
什么时候适合用机器学习算法？1.存在某种规则／模式，能够使性能提升，比如准确率；2.这种规则难以程序化定义，人难以给出准确定义；3.存在能够反映这种规则的资料。所以，机器学习就是设计算法A，从包含许多假设的假设集合H里，根据所给的数据集D，选出和实际规则f最为相似的假设g。注：g和f相似度的衡量是基...
BZoj 2301 Problem b（容斥定理+莫比乌斯反演）
2301: [HAOI2011]Problem bTime Limit: 50 Sec Memory Limit: 256 MBSubmit: 7732 Solved: 3750[Submit][Status][Discuss]Description对于给出的n个询问，每次求有多少个数对(x,y...
uva--11991 - Easy Problem from Rujia Liu?（sort+二分 map+vector vector）
11991 - Easy Problem from Rujia Liu?Though Rujia Liu usually sets hard problems for contests (for example, regional contests likeXi’an 2006, Beijing 2...
NYOJ--513--A+B Problem IV(大数)
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UESTC_全都是秋实大哥 2015 UESTC Training for Search Algorithm & String
J - 全都是秋实大哥Time Limit: 5000/2000MS (Java/Others) Memory Limit: 32000/32000KB (Java/Others)Submit Status秋实大哥是一个多愁善感的人，偶尔也会唱唱两句伤情的歌。每次唱完后，秋实大哥都能解决一道...
UESTC_基爷与加法等式 2015 UESTC Training for Search Algorithm & String
C - 基爷与加法等式Time Limit: 3000/1000MS (Java/Others) Memory Limit: 65535/65535KB (Java/Others)Submit Status一天，上小学的妹妹跑过来问基爷一道字母加法等式，基爷不假思索的便给出了一组可行解。聪明...
UESTC_王之迷宫 2015 UESTC Training for Search Algorithm & String
A - 王之迷宫Time Limit: 3000/1000MS (Java/Others) Memory Limit: 65535/65535KB (Java/Others)Submit Status王被困在了一个3维的迷宫中，他很想逃离这个迷宫回去当学霸，你能帮助他么? 由于王很仁慈，他悄...
UESTC_韩爷的梦 2015 UESTC Training for Search Algorithm & String
N - 韩爷的梦Time Limit: 200/100MS (Java/Others) Memory Limit: 1300/1300KB (Java/Others)Submit Status一天，韩爷去百度面试，面试官给了他这么一个问题。给你2万个字符串，每个字符串长度都是100，然后把2...
UESTC_秋实大哥の恋爱物语 2015 UESTC Training for Search Algorithm & String
K - 秋实大哥の恋爱物语Time Limit: 5000/2000MS (Java/Others) Memory Limit: 32000/32000KB (Java/Others)Submit Status传说有这么一个故事！在一个月白风清的晚上，秋实大哥约一位他心仪的妹子一起逛校园，浪...
《DSP using MATLAB》Problem 7.23
%% ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++%% Output Info about this m-filefprintf('\n*************...
HDOJ 4974 A simple water problem
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Gym 102028C - Supreme Command - [思维题][2018-2019 ACM-ICPC Asia Jiaozuo Regional Contest Problem C]
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android 6.0编译时出现ERROR：Security problem ，see jack server log【转】
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