根据题目,我们可以找最短的LIS和最长的LIS,找最短LIS时,可以将每一个increase序列分成一组,从左到右将最大的还未选择的数字填写进去,不同组之间一定不会存在s[i]<s[j]的情况,保证满足题意,找最长LIS,可以找补集,将每个decrease序列分成一组,找到后取反即可 #include<bits/stdc++.h> using namespace std; #define lowbit(x) ((x)&(-x)) typedef long long LL; vec…
A. Two Rabbits (手速题) #include<bits/stdc++.h> using namespace std; typedef long long ll; int main(){ int t; cin>>t; while(t--){ ll x,y,a,b; cin>>x>>y>>a>>b; ll sum = a+b; ){ cout<<(y-x)/sum<<endl; } else{ cou…
A. Two Rabbits 思路: 很明显,如果(y-x)%(a+b)==0的话ans=(y-x)/(a+b),否则就为-1 #include<iostream> #include<algorithm> using namespace std; +; int main(){ int k; scanf("%d",&k); while(k--){ long long x,y,a,b,ans; cin>>x>>y>>a&g…
Codeforces Round #620 (Div. 2) A. Two Rabbits 题意 两只兔子相向而跳,一只一次跳距离a,另一只一次跳距离b,每次同时跳,问是否可能到同一位置 题解 每次跳相对距离减少Δ=(a+b)\Delta=(a+b)Δ=(a+b),如果总距离是Δ\DeltaΔ的倍数,就证明可以到同一位置 代码 #include<iostream> #include<cstdio> using namespace std; int main() { long N,x…
原题链接在这里:https://leetcode.com/problems/number-of-longest-increasing-subsequence/description/ 题目: Given an unsorted array of integers, find the number of longest increasing subsequence. Example 1: Input: [1,3,5,4,7] Output: 2 Explanation: The two longe…
题目描述: 1015. Jill's Tour Paths Constraints Time Limit: 1 secs, Memory Limit: 32 MB Description Every year, Jill takes a bicycle tour between two villages. There are different routes she can take between these villages, but she does have an upper limit…
What Is Mathematics? The National Council of Teachers of Mathematics (NCTM), the world's largest organization devoted to improving mathematics education, is developing a set of mathematics concepts, or standards, that are important for teaching and l…
Radio Basics for RFID The following is excerpted from Chapter 3: Radio Basics for UHF RFID from the Book, The RF in RFID: Passive UHF RFID in Practice by Daniel M. Dobkin. Order a copy of The RF in RFID: Passive UHF RFID in Practice before December 3…
Lweb and String Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 368 Accepted Submission(s): 243 Problem Description Lweb has a string S. Oneday, he decided to transform this string to a new s…
Lweb and String 题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5842 Description Lweb has a string S. Oneday, he decided to transform this string to a new sequence. You need help him determine this transformation to get a sequence which has the longe…
描述 In the book All Creatures of Mythology, gnomes are kind, bearded creatures, while goblins tend to be bossy and simple-minded. The goblins like to harass the gnomes by making them line up in groups of three, ordered by the length of their beards. T…
Problem Description Lweb has a string $S$. Oneday, he decided to transform this string to a new sequence. You need help him determine this transformation to get a sequence which has the longest LIS(Strictly Increasing). You need transform every lette…
Problem Description Lweb has a string S. Oneday, he decided to transform this string to a new sequence. You need help him determine this transformation to get a sequence which has the longest LIS(Strictly Increasing). You need transform every letter…
Lweb and String Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 492 Accepted Submission(s): 312 Problem Description Lweb has a string S. Oneday, he decided to transform this string to a new s…
题目链接 题目要求: Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Find and return the shortest palindrome you can find by performing this transformation. For example: Given "aacecaaa", return "a…
Test Design Techniques - STATE BASED TESTING -Test note of “Essential Software Test Design” 2015-08-19 Content: 13.1 The Model 13.1.1 The ATM Machine13.2 Creating Base Test Cases 13.2.1 Ways of Covering the Graph 13.2.2 Coverage According to Chow …
Lweb and String 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5842 Description Lweb has a string S. Oneday, he decided to transform this string to a new sequence. You need help him determine this transformation to get a sequence which has the longe…
Lweb and String Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 261 Accepted Submission(s): 174 Problem Description Lweb has a string S. Oneday, he decided to transform this string to a new s…
CITY表: Field Type ID number NAME VARCHAR2(17) COUNTRYCODE VARCHAR2(3) DISTRICT VARCHAR2(20) POPULATION number 1.Revising the Select Query I Query all columns for all American cities in the CITY table with populations larger than 100000. The CountryCo…
传送门 The task is to find the length of the longest subsequence in a given array of integers such that all elements of the subsequence are sorted in ascending order. For example, the length of the LIS for { 15, 27, 14, 38, 26, 55, 46, 65, 85 } is 6 and…
Longest Ordered Subsequence Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 47465 Accepted: 21120 Description A numeric sequence of ai is ordered if a1 < a2 < ... < aN. Let the subsequence of the given numeric sequence (a1, a2, ...…
