7226 | 2024. 01. 03 19:28:38 | MagyarKendeSZLG | Fasor (40) | cpp17 | Elfogadva 40/40 | 28ms | 7000 KiB |
#include <bits/stdc++.h>
#define speed cin.tie(0); ios::sync_with_stdio(0)
#define cinv(v) for (auto& e : v) cin >> e;
#define all(v) v.begin(), v.end()
#define has(s, e) s.count(e)
using namespace std;
using ll = long long;
using point = array<int, 2>;
int main() {
speed;
int N, K;
cin >> N >> K;
vector<int> v(N);
cinv(v);
if (N <= K + 1) {
cout << max_element(all(v)) - v.begin() + 1;
exit(0);
}
deque<point> q;
for (int i = 0; i < K + 1; i++) {
while (!q.empty() && q.back()[0] < v[i]) {
q.pop_back();
}
q.push_back({v[i], i});
}
if (q.front()[0] == v[0]) {
cout << 1;
exit(0);
}
int bagoly = 1, left = 1 - K, right = 1 + K;
while (bagoly < N) {
if (!q.empty() && q.front()[1] < left) {
q.pop_front();
}
if (right < N) {
while (!q.empty() && q.back()[0] < v[right]) {
q.pop_back();
}
q.push_back({v[right], right});
}
if (!q.empty() && q.front()[0] == v[bagoly]) {
cout << bagoly + 1;
exit(0);
}
left++;
bagoly++;
right++;
}
cout << -1;
}
Részfeladat | Összpont | Teszt | Verdikt | Idő | Memória | ||
---|---|---|---|---|---|---|---|
base | 40/40 | ||||||
1 | Elfogadva | 0/0 | 3ms | 1976 KiB | |||
2 | Elfogadva | 0/0 | 4ms | 2072 KiB | |||
3 | Elfogadva | 2/2 | 3ms | 2196 KiB | |||
4 | Elfogadva | 2/2 | 3ms | 2444 KiB | |||
5 | Elfogadva | 2/2 | 2ms | 2504 KiB | |||
6 | Elfogadva | 2/2 | 3ms | 2620 KiB | |||
7 | Elfogadva | 2/2 | 3ms | 2864 KiB | |||
8 | Elfogadva | 2/2 | 3ms | 3004 KiB | |||
9 | Elfogadva | 2/2 | 4ms | 3092 KiB | |||
10 | Elfogadva | 2/2 | 4ms | 3408 KiB | |||
11 | Elfogadva | 2/2 | 4ms | 3364 KiB | |||
12 | Elfogadva | 2/2 | 3ms | 3624 KiB | |||
13 | Elfogadva | 2/2 | 16ms | 4732 KiB | |||
14 | Elfogadva | 2/2 | 14ms | 4516 KiB | |||
15 | Elfogadva | 2/2 | 24ms | 6548 KiB | |||
16 | Elfogadva | 2/2 | 26ms | 6244 KiB | |||
17 | Elfogadva | 2/2 | 28ms | 6588 KiB | |||
18 | Elfogadva | 2/2 | 28ms | 5796 KiB | |||
19 | Elfogadva | 2/2 | 28ms | 5604 KiB | |||
20 | Elfogadva | 2/2 | 12ms | 5508 KiB | |||
21 | Elfogadva | 2/2 | 26ms | 7000 KiB | |||
22 | Elfogadva | 2/2 | 28ms | 5860 KiB |