学步园

//poj2163 注意一下数组的边界就可以了 
#include <iostream>
#include <string>
using namespace std;
double a[10005];
double P1[10005];
double P2[10005];
int main()
{
	//freopen("t.txt", "r", stdin);
	int m, n, k;
	cin>>m>>n>>k;
	memset(P1, 0, sizeof(P1));
	memset(P2, 0, sizeof(P2));
	for(int i = 0; i < k; i++)
	{
		cin>>a[i];
	}
	for(int i = 0; i <= k - m; i++)
	{
		for(int j = m + i - 1; j >= i; j--)
		{
			P1[m+i-1] += a[j];
		}
	} 
	for(int i = 0; i <= k - n; i++)
	{
		for(int j = n + i - 1; j >= i; j--)
		{
			P2[n+i-1] += a[j];
		}
	}
	for(int i = 0; i < k; i++)
	{
		P1[i] = P1[i] / m;
		P2[i] = P2[i] / n;
	}
	for(int i = n-1; i < k; i++)
	{
		if((i == n - 1 || P1[i-1] < P2[i-1]) && P1[i] > P2[i])
		{
			cout<<"BUY ON DAY "<<i+1<<endl;
		}
		if((i == n - 1 || P1[i-1] > P2[i-1]) && P1[i] < P2[i])
		{
			cout<<"SELL ON DAY "<<i+1<<endl; 
		}
	}
	return 0;
}