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题目链接：http://codeforces.com/problemset/problem/771/A点击打开链接A. Bear and Friendship Conditiontime limit per test1 secondmemory limit per test256 megabytesinputstandard in

题目链接：https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=3138点击打开链接I hope you know the beautiful Union-Find structure. In this problem, you’re to implemen

题目链接：http://poj.org/problem?id=1703点击打开链接Find them, Catch themTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 47223 Accepted: 14544Description

题目链接：http://poj.org/problem?id=1182点击打开链接食物链Time Limit: 1000MS Memory Limit: 10000KTotal Submissions: 77446 Accepted: 23074Description动物王国中有三类动物A,B,C，

题目链接：http://codeforces.com/problemset/problem/616/C点击打开链接C. The Labyrinthtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputsta

题目链接：http://codeforces.com/problemset/problem/698/B点击打开链接B. Fix a Treetime limit per test2 secondsmemory limit per test256 megabytesinputstandard input

题目链接http://codeforces.com/problemset/problem/357/C点击打开链接C. Knight Tournamenttime limit per test3 secondsmemory limit per test256 megabytesinputstandard input

题目链接：http://codeforces.com/problemset/problem/505/B点击打开链接B. Mr. Kitayuta's Colorful Graphtime limit per test1 secondmemory limit per test256 megabytesinputstand

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=1213点击打开链接How Many TablesTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 31871    A

题目链接：http://poj.org/problem?id=1611点击打开链接The SuspectsTime Limit: 1000MS Memory Limit: 20000KTotal Submissions: 39369 Accepted: 19056DescriptionSever

题目链接：http://poj.org/problem?id=2236点击打开链接Wireless NetworkTime Limit: 10000MS Memory Limit: 65536KTotal Submissions: 28880 Accepted: 11966DescriptionAn

题目链接：http://codeforces.com/problemset/problem/566/D点击打开链接D. Restructuring Companytime limit per test2 secondsmemory limit per test256 megabytesinputstandard input

题目链接：http://codeforces.com/problemset/problem/371/D点击打开链接D. Vesselstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputou

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=1232点击打开链接畅通工程Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 54973    Accepted Sub

题目链接：http://poj.org/problem?id=2524点击打开链接Ubiquitous ReligionsTime Limit: 5000MS Memory Limit: 65536KTotal Submissions: 35899 Accepted: 17126Description

题目链接：http://codeforces.com/problemset/problem/742/D点击打开链接D. Arpa's weak amphitheater and Mehrdad's valuable Hosestime limit per test1 secondmemory limit per test256 megabytes