随笔分类 - 图论
摘要:题目链接: "http://codeforces.com/contest/740/problem/D" D. Alyona and a tree time limit per test2 secondsmemory limit per test256 megabytes 问题描述 Alyona ha
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摘要:题目链接: "https://acm.bnu.edu.cn/v3/problem_show.php?pid=52318" B. Be Friends Case Time Limit: 2500msMemory Limit: 524288KB 题意 给你n个点,每个点有一个权值a[i],对于两个点u,
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摘要:题目链接: "https://www.bnuoj.com/v3/problem_show.php?pid=52303" Floyd Warshall Time Limit: 60000msMemory Limit: 1048576KB 问题描述 In ICPCCamp, there are n ci
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摘要:题目链接: "http://codeforces.com/problemset/problem/301/B" B. Yaroslav and Time time limit per test2 secondsmemory limit per test256 megabytes 问题描述 Yarosl
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摘要:题目链接: "http://codeforces.com/problemset/problem/498/C" C. Array and Operations time limit per test1 secondmemory limit per test256 megabytes 问题描述 You 
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摘要:题目链接: "http://codeforces.com/problemset/problem/546/E" E. Soldier and Traveling time limit per test1 secondmemory limit per test256 megabytes 问题描述 In 
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摘要:题目链接: "http://codeforces.com/problemset/problem/507/E" E. Breaking Good time limit per test2 secondsmemory limit per test256 megabytes 问题描述 Breaking G
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摘要:题目链接: "http://codeforces.com/contest/14/problem/D" D. Two Paths time limit per test2 secondsmemory limit per test64 megabytes 问题描述 As you know, Bob's 
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摘要:题目链接: "http://acm.csu.edu.cn/OnlineJudge/problem.php?id=1808" 1808: 地铁 Time Limit: 5 SecMemory Limit: 128 MB 问题描述 Bobo 居住在大城市 ICPCCamp。 ICPCCamp 有 n 个
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摘要:题目链接: "http://acm.hdu.edu.cn/showproblem.php?pid=5855" Less Time, More profit Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/65536 K (Java/
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摘要:题目链接: "http://acm.hust.edu.cn/vjudge/problem/129727" D Book Club Time Limit: 5000MS 题意 给你一个无自环的有向图,问你最后能不能将每个点都划分在若干个有向环里(每个点最后只能属于一个环)。 题解 这题一开始思路就跑偏
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摘要:题目链接: "http://acm.hust.edu.cn/vjudge/problem/129723" Flowery Trails Time Limit: 3000MS 题意 求所有位于最短路上的边的权值和的两倍。 题解 起点跑一遍单源最短路,得到距离数组d[],终点跑一遍最短路,得到d2[]。
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摘要:题目链接: "http://acm.hust.edu.cn/vjudge/problem/307216" Froggy Ford Time Limit: 3000MS 题意 青蛙过河,河中有若干个石头,现在你可以加一个石头,使得青蛙从左岸跳到右岸的最大跳跃距离最小。 题解 把左岸和右岸作为两个虚节点
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摘要:题目链接: "http://acm.hust.edu.cn/vjudge/problem/48415" It Can Be Arranged Time Limit: 3000MS 问题描述 Every year, several universities arrange inter universi
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摘要:题目链接: "http://acm.hust.edu.cn/vjudge/problem/48416" Shopping Malls Time Limit: 3000MS 问题描述 We want to create a smartphone application to help visitors
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摘要:题目链接: "http://acm.hust.edu.cn/vjudge/problem/356788" Airports Time Limit: 3000MS 问题描述 An airline company offers flights out of n airports, convenientl
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摘要:题目链接: "http://acm.hdu.edu.cn/showproblem.php?pid=1598" find the most comfortable road Time Limit: 1000/1000 MS (Java/Others)Memory Limit: 32768/32768 
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摘要:题目链接: "http://codeforces.com/problemset/problem/208/C" C. Police Station time limit per test:2 secondsmemory limit per test:256 megabytes 问题描述 The Ber
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摘要:题目链接: 题目 "E. Three States" time limit per test:5 seconds memory limit per test:512 megabytes 问题描述 The famous global economic crisis is approaching rap
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摘要:题目链接: 题目 "D. Tree Requests" time limit per test:2 seconds memory limit per test:256 megabytes 问题描述 Roman planted a tree consisting of n vertices. Each
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