Cod sursa(job #601462)

Utilizator Catah15Catalin Haidau Catah15 Data 6 iulie 2011 19:05:17
Problema Secventa Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.61 kb
#include <fstream>

using namespace std;

#define inf (1 << 30)
#define maxN 500005

int A[maxN], D[maxN];
int sol = - inf, poz, pozf;

int main()
{
	ifstream f ("secventa.in");
	ofstream g ("secventa.out");
	
	int N, K;
	
	f >> N >> K;
	
	int st = 1, dr = 0;	
	
	for (int i = 1; i <= N; ++ i)
	{
		f >> A[i];
		
		if (st <= dr && D[st] <= i - K) ++ st;
		
		while (st <= dr && A[D[dr]] > A[i]) -- dr;
		
		D[++ dr] = i;
		
		if (i >= K && sol < A[D[st]])
		{
			poz = i - K + 1;
			pozf = i;
			sol = A[D[st]];
		}
	}

	
	g << poz << " " << pozf << " " << sol;
	
	
	return 0;
}