【2017多校第二场】HDU 6075 Questionnaire【思维】
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Questionnaire
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 524288/524288 K (Java/Others)Total Submission(s): 714 Accepted Submission(s): 487
Special Judge
Problem Description
In order to get better results in official ACM/ICPC contests, the team leader comes up with a questionnaire. He asked everyone in the team whether to have more training.
Picture from Wikimedia Commons
Obviously many people don't want more training, so the clever leader didn't write down their words such as ''Yes'' or ''No''. Instead, he let everyone choose a positive integerai to represent his opinion. When finished, the leader will choose a pair of positive interges m(m>1) and k(0≤k<m) , and regard those people whose number is exactly k modulo m as ''Yes'', while others as ''No''. If the number of ''Yes'' is not less than ''No'', the leader can have chance to offer more training.
Please help the team leader to find such pair ofm and k .
Picture from Wikimedia Commons
Obviously many people don't want more training, so the clever leader didn't write down their words such as ''Yes'' or ''No''. Instead, he let everyone choose a positive integer
Please help the team leader to find such pair of
Input
The first line of the input contains an integer T(1≤T≤15) , denoting the number of test cases.
In each test case, there is an integern(3≤n≤100000) in the first line, denoting the number of people in the ACM/ICPC team.
In the next line, there aren distinct integers a1,a2,...,an(1≤ai≤109) , denoting the number that each person chosen.
In each test case, there is an integer
In the next line, there are
Output
For each test case, print a single line containing two integers m and k , if there are multiple solutions, print any of them.
Sample Input
1623 3 18 8 13 9
Sample Output
5 3
Source
2017 Multi-University Training Contest - Team 4
原题链接:http://acm.hdu.edu.cn/showproblem.php?pid=6075
题意:每个人选择一个正整数,队长选择两个数m,k,对于每个人选择的数,如果对m取余,结果为k,则得到一个‘yes’,否则得到‘No’,如果最后‘Yes’的数量大于等于‘No’,则队长将得到更多的训练机会
问,队长如何选择m,k
一个数对m取余,结果为[0,m-1],所以我们取m=2,判断奇偶即可。
AC代码:
/** * 行有余力,则来刷题! * 博客链接:http://blog.csdn.net/hurmishine * 个人博客网站:http://wuyunfeng.cn/*/#include <iostream>#include <cstdio>#include <cmath>using namespace std;const int maxn=800000+5;char a[maxn],b[maxn];int main(){ int T; cin>>T; int n,x,y; while(T--) { scanf("%d%d%d",&n,&x,&y); scanf("%s",a); scanf("%s",b); int cnt=0; for(int i=0;i<n;i++) { if(a[i]!=b[i]) cnt++; } if(abs(x-y)<=cnt&&x+y<=2*n-cnt) printf("Not lying\n"); else printf("Lying\n"); } return 0;}
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