題目鏈接:http://www.codechef.com/problems/CLPERM/

題目鏈接:http://www.codechef.com/problems/ANUMLA

題目鏈接:http://www.codechef.com/problems/POUR1

題目鏈接:http://www.codechef.com/problems/ARRAYTRM

題目鏈接:http://www.lydsy.com/JudgeOnline/problem.php?id=1004

題目鏈接:http://arc031.contest.atcoder.jp/tasks/arc031_3

題目鏈接:http://www.lydsy.com/JudgeOnline/problem.php?id=1007

題目鏈接:http://www.lydsy.com/JudgeOnline/problem.php?id=1003

題目鏈接:http://www.lydsy.com/JudgeOnline/problem.php?id=1008

題目鏈接:http://www.lydsy.com/JudgeOnline/problem.php?id=1010

題目鏈接:http://www.lydsy.com/JudgeOnline/problem.php?id=1036

题目链接:http://www.lydsy.com/JudgeOnline/problem.php?id=1001

題目鏈接:http://www.codechef.com/DEC14/problems/XORSUB

題目鏈接:http://arc001.contest.atcoder.jp/tasks/arc001_4