记录编号	243522	评测结果	AAAAAAAAAA
题目名称	[HAOI 2009]巧克力	最终得分	100
用户昵称	Fmuckss	是否通过	通过
代码语言	C++	运行时间	0.004 s
提交时间	2016-03-30 09:29:50	内存使用	0.42 MiB

#include<iostream>
#include<cstdio>
#include<algorithm>
using namespace std;
const int maxn = 2e4+5;
int n, m;
int ans = 0;
inline int get_num() {
	int ans = 0;
	char tmp = getchar();
	while(tmp < '0' || tmp > '9') tmp = getchar();
	while(tmp <= '9' && tmp >= '0') {
		ans = ans*10 + tmp - '0';
		tmp = getchar();
	}
	return ans;
}
struct line {
	int v;
	bool x;
	inline line() {}
	inline line(int v_, bool x_) { v = v_, x = x_; }
	inline bool operator < (const line &b) const {
		return v > b.v;
	}
}ls[maxn];
inline void read() {
	n = get_num();
	m = get_num();
	for(int i = 1; i <= n-1; i++)   ls[i] = line(get_num(),  true);
	for(int i = n; i <= n+m-2; i++) ls[i] = line(get_num(), false);
}
inline void solve() {
	sort(ls+1, ls+n+m-1);
	int x = 1, y = 1;
	for(int i = 1; i <= n+m-2; i++) ans += (ls[i].x ? (x++, y) : (y++, x)) * ls[i].v; 
}
int main() {
	freopen("chocolate.in", "r", stdin);
	freopen("chocolate.out", "w", stdout); 
	read();
	solve();
	printf("%d", ans);
	return 0;
}