http://codeforces.com/contest/816/problem/B To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the perfect cup of coffee. Indeed, she has spent some time r…
http://codeforces.com/contest/816/problem/A 题意: 给出一个时间,问最少过多少时间后是回文串. 思路: 模拟,先把小时的逆串计算出来: ① 如果逆串=分钟,那么此时已经是回文串了. ② 如果逆串>分钟,那么只需要逆串-分钟即可.(注意此时逆串>=60的情况) ③ 如果逆串<分钟,此时在这个小时内要构成回文串已经是不可能的了,那么就加上60-minute分钟,进入一个新的小时,然后重复上述步骤. #include<iostream>…
C. Karen and Game time limit per test 2 seconds memory limit per test 512 megabytes input standard input output standard output On the way to school, Karen became fixated on the puzzle game on her phone! The game is played as follows. In each level,…
To stay woke and attentive during classes, Karen needs some coffee! Karen, a coffee aficionado, wants to know the optimal temperature for brewing the perfect cup of coffee. Indeed, she has spent some time reading several recipe books, including the u…
容易发现,删除的顺序不影响答案. 所以可以随便删. 如果行数大于列数,就先删列:否则先删行. #include<cstdio> #include<algorithm> using namespace std; int p1,ans1[510*110],ans2[510*110],p2; int n,m,a[110][110]; int main(){ scanf("%d%d",&n,&m); for(int i=1;i<=n;++i){ f…
C. Karen and Supermarket On the way home, Karen decided to stop by the supermarket to buy some groceries. She needs to buy a lot of goods, but since she is a student her budget is still quite limited. In fact, she can only spend up to b dollars.…
