#include <iostream>
#include <iomanip>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cstring>
#include <cassert>
#include <string>
#include <set>
#include <map>
#include <random>
#include <bitset>
#include <string>
#include <unordered_set>
#include <unordered_map>
#include <deque>
#include <queue>
#define rep(i, n) for (int i = 0; i < (n); i++)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
using namespace std;
using ll = long long;
using ul = unsigned long long;
using ld = long double;
const int N = 1 << 18;
ll tr[2][N * 2], inf = 1e16, a[N], b[N], c[N], d[N];
void add(int q, int p, ll x) {
for (int i = N + p; i; i >>= 1)
tr[q][i] = min(tr[q][i], x);
}
ll getm(int q, int cl, int cr, int v=1, int l=0, int r=N) {
if (cr <= l || r <= cl)
return inf;
if (cl <= l && r <= cr)
return tr[q][v];
return min(getm(q, cl, cr, v * 2, l, (l + r) / 2), getm(q, cl, cr, v * 2 + 1, (l + r) / 2, r));
}
ll lb(vector<ll> &a, ll x) {
return lower_bound(all(a), x) - a.begin();
}
int main() {
ios_base::sync_with_stdio(0); cin.tie(0);
ll m, n;
cin >> m >> n;
vector<ll> li {2, n};
rep(i, m) {
cin >> a[i] >> b[i] >> c[i] >> d[i];
li.push_back(a[i]);
li.push_back(b[i] + 1);
}
sort(all(li));
li.resize(unique(all(li)) - li.begin());
if (li[0] != 1 || li.back() != n + 1) {
cout << -1;
return 0;
}
rep(i, N * 2)
rep(j, 2)
tr[j][i] = inf;
add(0, 0, 0);
add(1, li.size() - 2, 0);
ll ans = inf;
rep(i, m) {
a[i] = lb(li, a[i]);
b[i] = lb(li, b[i] + 1);
c[i] = lb(li, c[i] + 1) - 1;
ll m1 = getm(0, a[i], b[i]), m2 = getm(1, a[i], b[i]);
ans = min(ans, m1 + m2 + d[i]);
add(0, c[i], m1 + d[i]);
add(1, c[i], m2 + d[i]);
}
if (ans == inf)
ans = -1;
cout << ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
8576 KB |
Output is correct |
2 |
Correct |
9 ms |
8576 KB |
Output is correct |
3 |
Correct |
10 ms |
8576 KB |
Output is correct |
4 |
Correct |
9 ms |
8576 KB |
Output is correct |
5 |
Correct |
9 ms |
8576 KB |
Output is correct |
6 |
Correct |
9 ms |
8576 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
8 ms |
8576 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
8576 KB |
Output is correct |
2 |
Correct |
9 ms |
8576 KB |
Output is correct |
3 |
Correct |
10 ms |
8576 KB |
Output is correct |
4 |
Correct |
9 ms |
8576 KB |
Output is correct |
5 |
Correct |
9 ms |
8576 KB |
Output is correct |
6 |
Correct |
9 ms |
8576 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
8 ms |
8576 KB |
Output is correct |
9 |
Correct |
9 ms |
8576 KB |
Output is correct |
10 |
Correct |
9 ms |
8576 KB |
Output is correct |
11 |
Correct |
9 ms |
8576 KB |
Output is correct |
12 |
Correct |
9 ms |
8576 KB |
Output is correct |
13 |
Correct |
9 ms |
8576 KB |
Output is correct |
14 |
Correct |
9 ms |
8576 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
8576 KB |
Output is correct |
2 |
Correct |
9 ms |
8576 KB |
Output is correct |
3 |
Correct |
10 ms |
8576 KB |
Output is correct |
4 |
Correct |
9 ms |
8576 KB |
Output is correct |
5 |
Correct |
9 ms |
8576 KB |
Output is correct |
6 |
Correct |
9 ms |
8576 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
8 ms |
8576 KB |
Output is correct |
9 |
Correct |
9 ms |
8576 KB |
Output is correct |
10 |
Correct |
9 ms |
8576 KB |
Output is correct |
11 |
Correct |
9 ms |
8576 KB |
Output is correct |
12 |
Correct |
9 ms |
8576 KB |
Output is correct |
13 |
Correct |
9 ms |
8576 KB |
Output is correct |
14 |
Correct |
9 ms |
8576 KB |
Output is correct |
15 |
Correct |
9 ms |
8576 KB |
Output is correct |
16 |
Correct |
6 ms |
384 KB |
Output is correct |
17 |
Correct |
10 ms |
8704 KB |
Output is correct |
18 |
Correct |
10 ms |
8704 KB |
Output is correct |
19 |
Correct |
5 ms |
512 KB |
Output is correct |
20 |
Correct |
10 ms |
8704 KB |
Output is correct |
21 |
Correct |
9 ms |
8576 KB |
Output is correct |
22 |
Correct |
10 ms |
8704 KB |
Output is correct |
23 |
Correct |
10 ms |
8704 KB |
Output is correct |
24 |
Correct |
11 ms |
8704 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
8576 KB |
Output is correct |
2 |
Correct |
9 ms |
8576 KB |
Output is correct |
3 |
Correct |
10 ms |
8576 KB |
Output is correct |
4 |
Correct |
9 ms |
8576 KB |
Output is correct |
5 |
Correct |
9 ms |
8576 KB |
Output is correct |
6 |
Correct |
9 ms |
8576 KB |
Output is correct |
7 |
Correct |
4 ms |
384 KB |
Output is correct |
8 |
Correct |
8 ms |
8576 KB |
Output is correct |
9 |
Correct |
9 ms |
8576 KB |
Output is correct |
10 |
Correct |
9 ms |
8576 KB |
Output is correct |
11 |
Correct |
9 ms |
8576 KB |
Output is correct |
12 |
Correct |
9 ms |
8576 KB |
Output is correct |
13 |
Correct |
9 ms |
8576 KB |
Output is correct |
14 |
Correct |
9 ms |
8576 KB |
Output is correct |
15 |
Correct |
9 ms |
8576 KB |
Output is correct |
16 |
Correct |
6 ms |
384 KB |
Output is correct |
17 |
Correct |
10 ms |
8704 KB |
Output is correct |
18 |
Correct |
10 ms |
8704 KB |
Output is correct |
19 |
Correct |
5 ms |
512 KB |
Output is correct |
20 |
Correct |
10 ms |
8704 KB |
Output is correct |
21 |
Correct |
9 ms |
8576 KB |
Output is correct |
22 |
Correct |
10 ms |
8704 KB |
Output is correct |
23 |
Correct |
10 ms |
8704 KB |
Output is correct |
24 |
Correct |
11 ms |
8704 KB |
Output is correct |
25 |
Correct |
29 ms |
9472 KB |
Output is correct |
26 |
Correct |
56 ms |
10748 KB |
Output is correct |
27 |
Correct |
149 ms |
14572 KB |
Output is correct |
28 |
Correct |
151 ms |
17132 KB |
Output is correct |
29 |
Correct |
107 ms |
13036 KB |
Output is correct |
30 |
Correct |
178 ms |
17256 KB |
Output is correct |
31 |
Correct |
247 ms |
17256 KB |
Output is correct |
32 |
Correct |
212 ms |
17260 KB |
Output is correct |
33 |
Correct |
38 ms |
10364 KB |
Output is correct |
34 |
Correct |
115 ms |
12908 KB |
Output is correct |
35 |
Correct |
150 ms |
17256 KB |
Output is correct |
36 |
Correct |
250 ms |
17256 KB |
Output is correct |
37 |
Correct |
202 ms |
17256 KB |
Output is correct |
38 |
Correct |
201 ms |
17256 KB |
Output is correct |