7285 | 2024. 01. 06 09:05:31 | MagyarKendeSZLG | A lehető legkevesebb átszállás (50 pont) | cpp17 | Elfogadva 50/50 | 4ms | 4380 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 rall(v) v.rbegin(), v.rend()
#define size(v) (int)v.size()
#define has(s, e) s.count(e)
#define max_index(v) max_element(all(v)) - v.begin()
#define min_index(v) min_element(all(v)) - v.begin()
#define smax(x, y) x = max(x, y)
#define smin(x, y) x = min(x, y)
using namespace std;
using ll = long long;
using point = array<int, 2>;
int max(point p) { return max(p[0], p[1]); }
int min(point p) { return min(p[0], p[1]); }
int main() {
speed;
int N, M;
cin >> N >> M;
vector<point> AB(N + 1);
for (int i = 1; i <= N; i++) {
cin >> AB[i][0] >> AB[i][1];
}
vector<int> result;
int i = 1, pos = 1;
while (pos < M) {
int curr = -1;
while (i <= N && AB[i][0] <= pos) {
if (curr == -1 || AB[curr][1] < AB[i][1]) {
curr = i;
}
i++;
}
if (curr == -1) {
cout << -1;
exit(0);
}
pos = AB[curr][1];
result.push_back(curr);
}
cout << size(result) - 1 << '\n';
for (int x : result) cout << x << ' ';
}
Részfeladat | Összpont | Teszt | Verdikt | Idő | Memória | ||
---|---|---|---|---|---|---|---|
base | 50/50 | ||||||
1 | Elfogadva | 0/0 | 3ms | 2100 KiB | |||
2 | Elfogadva | 0/0 | 4ms | 2544 KiB | |||
3 | Elfogadva | 1/1 | 3ms | 2416 KiB | |||
4 | Elfogadva | 1/1 | 3ms | 2452 KiB | |||
5 | Elfogadva | 2/2 | 3ms | 2648 KiB | |||
6 | Elfogadva | 2/2 | 3ms | 2724 KiB | |||
7 | Elfogadva | 2/2 | 3ms | 2992 KiB | |||
8 | Elfogadva | 2/2 | 3ms | 2884 KiB | |||
9 | Elfogadva | 2/2 | 3ms | 2796 KiB | |||
10 | Elfogadva | 2/2 | 3ms | 3056 KiB | |||
11 | Elfogadva | 2/2 | 3ms | 3144 KiB | |||
12 | Elfogadva | 2/2 | 4ms | 3028 KiB | |||
13 | Elfogadva | 2/2 | 3ms | 3192 KiB | |||
14 | Elfogadva | 2/2 | 3ms | 3548 KiB | |||
15 | Elfogadva | 2/2 | 3ms | 3632 KiB | |||
16 | Elfogadva | 2/2 | 4ms | 3500 KiB | |||
17 | Elfogadva | 2/2 | 4ms | 3768 KiB | |||
18 | Elfogadva | 2/2 | 4ms | 3984 KiB | |||
19 | Elfogadva | 2/2 | 4ms | 4192 KiB | |||
20 | Elfogadva | 2/2 | 4ms | 4284 KiB | |||
21 | Elfogadva | 2/2 | 4ms | 4192 KiB | |||
22 | Elfogadva | 2/2 | 4ms | 4340 KiB | |||
23 | Elfogadva | 2/2 | 4ms | 4268 KiB | |||
24 | Elfogadva | 2/2 | 4ms | 4204 KiB | |||
25 | Elfogadva | 2/2 | 4ms | 4204 KiB | |||
26 | Elfogadva | 2/2 | 4ms | 4380 KiB | |||
27 | Elfogadva | 2/2 | 4ms | 4244 KiB | |||
28 | Elfogadva | 2/2 | 4ms | 4204 KiB |