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http://codeforces.com/problemset/problem/1217/E 这题的思路是: 1.首先不能有进位 2.由于要求和最小,所以我们只要选择两个数就可以了。 1 #include<bits/stdc++.h> 2 using namespace std; 3 int co 阅读全文
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It is vitally important to have all the cities connected by highways in a war. If a city is conquered by the enemy, all the highways from/toward that 阅读全文
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As the manager of your company, you have to carefully consider, for each project, the time taken to finish it, the deadline, and the profit you can ga 阅读全文