C. XOR Equation 题目连接： http://www.codeforces.com/contest/635/problem/C Description Two positive integers a and …

A. Vanya and Fence 题目连接： http://www.codeforces.com/contest/677/problem/A Description Vanya and his friends are…

B. Alice, Bob, Two Teams 题目连接： http://www.codeforces.com/contest/632/problem/B Description Alice and Bob are p…

E. Devu and Flowers 题目连接： http://codeforces.com/contest/451/problem/E Description Devu wants to decorate his g…

A. k-Factorization 题意：给你一个n，问你这个数能否分割成k个大于1的数的乘积。 题解：因为n的取值范围很小，所以感觉dfs应该不会有很多种可能…… #include<bits/stdc++.h&…

C. Coloring Trees 题目连接： http://www.codeforces.com/contest/711/problem/C Description ZS the Coder and Chris the…

B. Memory Manager 题目连接： http://www.codeforces.com/contest/7/problem/B Description There is little time left be…

C. Balance 题目链接 http://codeforces.com/contest/17/problem/C 题面 Nick likes strings very much, he likes to rotate…

A. DZY Loves Physics 题目连接： http://codeforces.com/contest/444/problem/A Description DZY loves Physics, and he e…

H. Fibonacci-ish II 题目连接： http://codeforces.com/contest/633/problem/H Description Yash is finally tired of com…

B. Mahmoud and a Triangle 题目连接： http://codeforces.com/contest/766/problem/B Description Mahmoud has n line seg…

A. Mahmoud and Longest Uncommon Subsequence 题目连接： http://codeforces.com/contest/766/problem/A Description Whil…