Cod sursa(job #483227)

Utilizator andunhillMacarescu Sebastian andunhill Data 7 septembrie 2010 15:34:49
Problema Buline Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.67 kb
#include<fstream>
#include<deque>
using namespace std;
#define oo 1<<30
ifstream f("buline.in");
ofstream g("buline.out");
int N,i,nr,col,bst,min1,beg,end,be;
int sum[400001];
deque<int>d;
int main()
{	f>>N;
	for(i=1;i<=N;i++)
	{	f>>nr>>col;
		sum[i]=sum[i-1]+(col?nr:-nr);
	}
	for(i=1;i<N;i++)
		sum[i+N]=sum[N]+sum[i];
	d.push_back(1);
	bst=-oo;
	for(i=1;i<2*N;i++)
	{	while(!d.empty() && sum[d.back()]>sum[i])
			d.pop_back();
		d.push_back(i);
		if(bst<sum[i]-sum[d.front()])
			bst=sum[i]-sum[d.front()] , end=i , beg=d.front()+1;
		if(i-d.front()>=N)
			d.pop_front();
	}
	g<<bst<<" "<<beg<<" "<<end-beg+1;
	f.close();
	g.close();
	return 0;
}