7215 | 2024. 01. 03 18:00:30 | MagyarKendeSZLG | Leghosszabb béke (75 pont) | cpp17 | Elfogadva 75/75 | 68ms | 6872 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, M;
cin >> N >> M;
map<int, int> from;
while (M--) {
int a, b;
cin >> a >> b;
from[a] = max(from[a], b);
}
from[N] = N;
point result = {0, 0};
int pos = 1;
for (auto [e, v] : from) {
if (pos >= N) break;
if (result[0] < e - pos) {
result[0] = e - pos;
result[1] = pos;
}
if (e == N) break;
pos = max(pos, v + 1);
}
if (result[0] == 0 && result[1] == 0) {
cout << -1;
} else {
if (result[1] + result[0] == N) {
result[0]++;
}
cout << result[0] << ' ' << result[1];
}
}
Részfeladat | Összpont | Teszt | Verdikt | Idő | Memória | ||
---|---|---|---|---|---|---|---|
base | 75/75 | ||||||
1 | Elfogadva | 0/0 | 3ms | 1832 KiB | |||
2 | Elfogadva | 0/0 | 68ms | 5668 KiB | |||
3 | Elfogadva | 3/3 | 3ms | 2288 KiB | |||
4 | Elfogadva | 3/3 | 3ms | 2516 KiB | |||
5 | Elfogadva | 3/3 | 3ms | 2728 KiB | |||
6 | Elfogadva | 3/3 | 3ms | 2940 KiB | |||
7 | Elfogadva | 3/3 | 2ms | 3020 KiB | |||
8 | Elfogadva | 4/4 | 2ms | 3032 KiB | |||
9 | Elfogadva | 4/4 | 3ms | 3152 KiB | |||
10 | Elfogadva | 4/4 | 3ms | 3304 KiB | |||
11 | Elfogadva | 4/4 | 6ms | 3632 KiB | |||
12 | Elfogadva | 4/4 | 7ms | 3840 KiB | |||
13 | Elfogadva | 4/4 | 4ms | 3748 KiB | |||
14 | Elfogadva | 4/4 | 6ms | 3772 KiB | |||
15 | Elfogadva | 4/4 | 7ms | 3976 KiB | |||
16 | Elfogadva | 4/4 | 6ms | 3624 KiB | |||
17 | Elfogadva | 4/4 | 6ms | 3556 KiB | |||
18 | Elfogadva | 4/4 | 4ms | 3528 KiB | |||
19 | Elfogadva | 4/4 | 59ms | 6872 KiB | |||
20 | Elfogadva | 4/4 | 43ms | 3612 KiB | |||
21 | Elfogadva | 4/4 | 28ms | 3684 KiB | |||
22 | Elfogadva | 4/4 | 43ms | 3620 KiB |