Cod sursa(job #1697963)

Utilizator quochuyaNguyen Quoc Huy quochuya Data 3 mai 2016 13:06:16
Problema Secventa Scor 80
Compilator c Status done
Runda Arhiva de probleme Marime 0.57 kb
#include <stdio.h>

int a[500000], dq[500000];

void Solve() {
	int n, k;
	scanf("%d %d", &n, &k);

	int r, m, top, bot;
	m = -(int)2E9;

	top = -1; bot = 0;
	for(int i = 0; i < n; ++i) {
		scanf("%d", &a[i]);
		while (top >= bot && a[i] < a[dq[top]]) --top;
		dq[++top] = i;
		if (i >= k-1) {
			while (top >= bot && dq[bot] < i-k+1) ++bot;
			if (a[dq[bot]] > m)
				m = a[dq[bot]], r = i;
		}
	}

	printf("%d %d %d\n", r-k+2, r+1, m);
}

int main(void) {
	freopen("secventa.in", "r", stdin);
	freopen("secventa.out", "w", stdout);
	Solve();
	return 0;
}