codeforces297B
Fish Weight
It is known that there are k fish species in the polar ocean, numbered from 1 to k. They are sorted by non-decreasing order of their weight, which is a positive number. Let the weight of the i-th type of fish be wi, then 0 < w1 ≤ w2 ≤ ... ≤ wk holds.
Polar bears Alice and Bob each have caught some fish, and they are guessing who has the larger sum of weight of the fish he/she's caught. Given the type of the fish they've caught, determine whether it is possible that the fish caught by Alice has a strictly larger total weight than Bob's. In other words, does there exist a sequence of weights wi (not necessary integers), such that the fish caught by Alice has a strictly larger total weight?
Input
The first line contains three integers n, m, k (1 ≤ n, m ≤ 105, 1 ≤ k ≤ 109) — the number of fish caught by Alice and Bob respectively, and the number of fish species.
The second line contains n integers each from 1 to k, the list of fish type caught by Alice. The third line contains m integers each from 1 to k, the list of fish type caught by Bob.
Note that one may have caught more than one fish for a same species.
Output
Output "YES" (without quotes) if it is possible, and "NO" (without quotes) otherwise.
Examples
3 3 3
2 2 2
1 1 3
YES
4 7 9
5 2 7 3
3 5 2 7 3 8 7
NO
Note
In the first sample, if w1 = 1, w2 = 2, w3 = 2.5, then Alice has a total of 2 + 2 + 2 = 6weight units, while Bob only has 1 + 1 + 2.5 = 4.5.
In the second sample, the fish that Alice caught is a subset of Bob's. Therefore, the total weight of Bob’s fish is always not less than the total weight of Alice’s fish.
sol:贪心乱搞,先后后缀和只要个数大于另一个就是YES了
#include <bits/stdc++.h>
using namespace std;
typedef int ll;
inline ll read()
{
ll s=;
bool f=;
char ch=' ';
while(!isdigit(ch))
{
f|=(ch=='-'); ch=getchar();
}
while(isdigit(ch))
{
s=(s<<)+(s<<)+(ch^); ch=getchar();
}
return (f)?(-s):(s);
}
#define R(x) x=read()
inline void write(ll x)
{
if(x<)
{
putchar('-'); x=-x;
}
if(x<)
{
putchar(x+''); return;
}
write(x/);
putchar((x%)+'');
return;
}
#define W(x) write(x),putchar(' ')
#define Wl(x) write(x),putchar('\n')
const int N=;
int n,m,K,a[N],b[N],Hash[N<<];
int main()
{
int i;
R(n); R(m); R(K);
for(i=;i<=n;i++) Hash[++*Hash]=(a[i]=read());
for(i=;i<=m;i++) Hash[++*Hash]=(b[i]=read());
sort(Hash+,Hash+*Hash+);
*Hash=unique(Hash+,Hash+*Hash+)-Hash-;
for(i=;i<=n;i++) a[i]=lower_bound(Hash+,Hash+*Hash+,a[i])-Hash;
for(i=;i<=m;i++) b[i]=lower_bound(Hash+,Hash+*Hash+,b[i])-Hash;
sort(a+,a+n+);
sort(b+,b+m+);
int Now=m+;
for(i=n;i>=;i--)
{
while(Now>&&b[Now-]>=a[i]) Now--;
if(n-i+>m-Now+) return puts("YES"),;
}
puts("NO");
return ;
}
/*
Input
3 3 3
2 2 2
1 1 3
Output
YES Input
4 7 9
5 2 7 3
3 5 2 7 3 8 7
Output
NO
*/
codeforces297B的更多相关文章
随机推荐
- Go语言GOMAXPROCS(调整并发的运行性能)
在 Go语言程序运行时(runtime)实现了一个小型的任务调度器.这套调度器的工作原理类似于操作系统调度线程,Go 程序调度器可以高效地将 CPU 资源分配给每一个任务.传统逻辑中,开发者需要维护线 ...
- MapReduces计数实验
实验内容 现有某电商网站用户对商品的收藏数据,记录了用户收藏的商品id以及收藏日期,名为buyer_favorite1. buyer_favorite1包含:买家id,商品id,收藏日期这三个字段,数 ...
- H5移动端弹幕动画实现
思路 把单个内容编辑好,计算自身宽度,确定初始位置 移动的距离是屏幕宽度 js动态的添加css动画函数,将高度.动画移动时间.动画延迟时间都用随机数控制 代码: html骨架结构 (以三个为例,如果觉 ...
- js把一串字符串去重(能统计出字符重复次数更佳)
原文来自:https://juejin.im/post/5ba6e77e6fb9a05d0b14359b <script> let str = "12qwe345671dsfa2 ...
- Qt5配置winpCap
在网上查了很多资料,搞了差不多一天总算解决Qt5使用winPcap配置的问题了!记录一下 以便后续忘记 1.下载winpcap4.1.3,百度即可搜索到 2.下载winpCap开发者工具包http:/ ...
- ble ic
ti cc25xxnordic nrf24xx nrf51xx nrf52xx Beken bk34xx
- linux 重定向类型 超级块 i节点
超级块:定义文件系统的元数据(总大小.块大小.空闲.......):在格式化的时候确定 查看超级块信息:tune2fs -l 目录 i节点:定义文件的元数据(名称.大小.存放位置.权限.修改时间 ...
- Satellite-Hacking 攻击卫星/卫星安全
虽说卫星安全这种东西也是高富帅才玩得起的领域,但是了解了解总是没坏处.参考了一些资料,如果想详细了解可以戳进去看看.看了这么多资料,总结一下吧. Why? 卫星存在安全问题主要有一下俩原因,首先是成本 ...
- zencart设置默认货币三种方法
zencart设置默认货币为USD 方法一:mysql UPDATE configuration SET configuration_value = 'USD' WHERE configuration ...
- ubuntu学习笔记-tar 解压缩命令详解(转)
tar 解压缩命令详解 -c: 建立压缩档案 -x:解压-t:查看内容-r:向压缩归档文件末尾追加文件-u:更新原压缩包中的文件 这五个是独立的命令,压缩解压都要用到其中一个,可以和别的命令连用但只能 ...