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Cod sursa(job #905879)
#include <algorithm>
#include <deque>
#include <fstream>
#include <iostream>
#include <utility>
using namespace std;
#ifdef INFOARENA
ifstream in("secventa.in");
ofstream out("secventa.out");
#else
#define out cout
#define in cin
#endif
const int INF = 1 << 30;
int N, K;
deque<pair<int, int> > dq;
int main() {
in >> N >> K;
int best = -INF, a = 0, b = 0;
for (int i = 1, x; i <= N; ++i) {
in >> x;
if (dq.size() < K) {
dq.push_back(make_pair(x, i));
} else {
while (!dq.empty() && dq.back().first > x) {
dq.pop_back();
}
dq.push_back(make_pair(x, i));
if (i - dq.front().second + 1 > K) {
dq.pop_front();
}
if (dq.front().first > best) {
best = dq.front().first;
a = dq.back().second - K + 1;
b = dq.back().second;
}
}
}
out << a << ' ' << b << ' ' << best;
return 0;
}