Problem 1582 众数问题 from http://acm.fzu.edu.cn/problem.php?pid=1582
来源:互联网 发布:查士丁尼瘟疫 知乎 编辑:程序博客网 时间:2024/05/01 18:42
Problem Description
给定含有n个元素的多重集合S,每个元素在S中出现的次数称为该元素的重数。多重集S中重数最大的元素称为众数。
例如,S={1,2,2,2,3,5}。
多重集S的众数是2,其重数为3。
Input
输入包括多组数据,请处理到EOF结束。
每组数据,以一个n(1<=n<=100,000)开始,接下n行,每行有一个数字(-231~231)。
Output
对于每组输入数据,输出一行一个数字,表示众数。如果存在多个解,只需输出值最小的众数即可。
Sample Input
61222353-1-1-1
Sample Output
2-1
Source
FOJ月赛-2008年4月这种思路还可以应用在求最小差上面
- #include<cstdio>
- #include<iostream>
- #include<algorithm>
- #include<cstring>
- #include<map>
- using namespace std;
- int a[100000];
- int main(){
- int n, t, max, val;
- //freopen("in.txt", "r", stdin);
- while(scanf("%d", &n)!=EOF){
- for(int i=0;i<n;++i)
- scanf("%d", a+i);
- sort(a, a+n);
- int pre = a[0];
- int count = 1, max = 1, val=pre;
- for(int i=1;i<n;++i){
- if(a[i] == pre)
- count++;
- else{
- pre = a[i];
- count = 1;
- }
- if(max<count){
- max = count;
- val = a[i];
- }
- }
- printf("%d\n", val);
- }
- //fclose(stdin);
- }
- Problem 1582 众数问题 from http://acm.fzu.edu.cn/problem.php?pid=1582
- Problem 1207 半数集问题 from http://acm.fzu.edu.cn/problem.php?pid=1207
- Problem 1057 ab from http://acm.fzu.edu.cn/problem.php?pid=1057
- Problem 1453 Bignum Arithmetic from http://acm.fzu.edu.cn/problem.php?pid=1453
- Problem 1410 变位词 from http://acm.fzu.edu.cn/problem.php?pid=1410
- Problem 1607 Greedy division from http://acm.fzu.edu.cn/problem.php?pid=1607
- Problem 1478 环形整数串 from http://acm.fzu.edu.cn/problem.php?pid=1478
- Problem 1202 信与信封问题 from http://acm.fzu.edu.cn/problem.php?pid=1202
- Problem 1046 Tempter of the Bone, from http://acm.fzu.edu.cn/problem.php?pid=1046
- fzu 1402 中国剩余定理 http://acm.fzu.edu.cn/problem.php?pid=1402
- http://acm.fzu.edu.cn/problem.php?pid=1698 最大乘积
- http://acm.fzu.edu.cn/problem.php?pid=2113 数位DP
- 单调队列入门 foj 1894 http://acm.fzu.edu.cn/problem.php?pid=1894
- http://acm.fzu.edu.cn/problem.php?pid=1564 C(n,k)和素数P的问题
- http://acm.uestc.edu.cn/problem.php?pid=1784&&
- http://acm.uestc.edu.cn/problem.php?pid=1480&cid=164
- A + B Problem II &&http://acm.hdu.edu.cn/showproblem.php?pid=1002
- http://acm.nyist.edu.cn/JudgeOnline/problem.php?pid=301 (矩阵的用法)
- http://ac.jobdu.com/problem.php?pid=1012
- http://ac.jobdu.com/problem.php?pid=1011
- http://ac.jobdu.com/problem.php?pid=1010
- 餐饮经营思考(一)——利润&成本
- Problem 1607 Greedy division from http://acm.fzu.edu.cn/problem.php?pid=1607
- Problem 1582 众数问题 from http://acm.fzu.edu.cn/problem.php?pid=1582
- Problem 1478 环形整数串 from http://acm.fzu.edu.cn/problem.php?pid=1478
- Visual CertExam Suite v3 0 1 Cracked-BLiZZARD
- ZOJ Problem Set - 3661 Palindromic Substring
- JPEG图片存储格式及原理
- JS + CSS 超漂亮切换效果
- MyBatis传参方式和批量操作总结
- 光标控制器
- 通过libvirt和convirt来管理KVM虚拟机