#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, int> pii;
#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
const int N = (int)1e5 + 10;
const ll inf = (ll)1e18;
ll T[N];
ll L[N];
ll R[N];
ll C[N];
ll dist[N];
bool pro[N];
vector<int> lis;
struct segm{
set<pii> kick[N*4+512];
void ins(int node, int cl, int cr, int id, ll fa, int fb){
kick[node].insert(mp(fa,fb));
if(cl == cr) return;
int mid = (cl + cr) / 2;
if(mid >= id)
ins(node * 2, cl, mid, id, fa, fb);
else
ins(node * 2 + 1, mid + 1, cr, id, fa, fb);
}
void get(int node, int cl, int cr, int tl, int tr, ll val, int mode){
if(cr < tl || cl > tr) return;
if(cl >= tl && cr <= tr){
if(mode == 0){ // get <= val
auto it = kick[node].lower_bound(mp(val + 1, -1));
while(it != kick[node].begin()){
it -- ;
lis.push_back(it->se);
it = kick[node].erase(it);
}
}
else{
auto it = kick[node].lower_bound(mp(val, -1));
while(it != kick[node].end()){
lis.push_back(it->se);
it = kick[node].erase(it);
}
}
return;
}
int mid = (cl + cr) / 2;
get(node * 2, cl, mid, tl, tr, val, mode);
get(node * 2 + 1, mid + 1, cr, tl, tr, val, mode);
}
};
segm t1, t2;
int main(){
fastIO;
int n, m;
cin >> n >> m;
vector<pii> zz;
for(int i = 1; i <= m; i ++ ){
cin >> T[i] >> L[i] >> R[i] >> C[i];
zz.push_back(mp(T[i], i));
}
sort(zz.begin(), zz.end());
for(int i = 0 ; i < m ; i ++ ){
t1.ins(1, 0, m - 1, i, T[zz[i].se] + L[zz[i].se],zz[i].se);
t2.ins(1, 0, m - 1, i, L[zz[i].se] - 1 - T[zz[i].se],zz[i].se);
}
priority_queue<pii, vector<pii>, greater<pii>> pq;
for(int i = 1; i <= m ; i ++ ){
dist[i] = inf;
if(L[i] == 1){
dist[i] = C[i];
pq.push(mp(C[i], i));
}
}
int id;
ll outp = inf;
int idx;
while(!pq.empty()){
id = pq.top().se;
pq.pop();
if(R[id] == n){
outp = min(outp, dist[id]);
}
idx = lower_bound(zz.begin(), zz.end(), mp(T[id], -1)) - zz.begin();
lis.clear();
t1.get(1, 0, m - 1, idx, m - 1, R[id] + 1 + T[id],0);
t2.get(1, 0, m - 1, 0, idx - 1, R[id] - T[id], 0);
for(auto x : lis){
if(dist[x] == inf){
dist[x] = dist[id] + C[x];
pq.push(mp(dist[x], x));
}
}
}
if(outp == inf)
cout << "-1\n";
else
cout << outp << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1483 ms |
264992 KB |
Output is correct |
2 |
Correct |
1469 ms |
268064 KB |
Output is correct |
3 |
Correct |
1806 ms |
268828 KB |
Output is correct |
4 |
Correct |
1825 ms |
268276 KB |
Output is correct |
5 |
Correct |
1630 ms |
271072 KB |
Output is correct |
6 |
Correct |
1365 ms |
268296 KB |
Output is correct |
7 |
Correct |
1146 ms |
268220 KB |
Output is correct |
8 |
Correct |
1595 ms |
268084 KB |
Output is correct |
9 |
Correct |
1368 ms |
267948 KB |
Output is correct |
10 |
Correct |
1126 ms |
268024 KB |
Output is correct |
11 |
Correct |
1984 ms |
271928 KB |
Output is correct |
12 |
Correct |
1967 ms |
272048 KB |
Output is correct |
13 |
Correct |
1982 ms |
271208 KB |
Output is correct |
14 |
Correct |
1992 ms |
271048 KB |
Output is correct |
15 |
Correct |
1447 ms |
268056 KB |
Output is correct |
16 |
Correct |
1472 ms |
268088 KB |
Output is correct |
17 |
Correct |
1464 ms |
267384 KB |
Output is correct |
18 |
Correct |
1972 ms |
271316 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
20 ms |
37964 KB |
Output is correct |
2 |
Correct |
20 ms |
37872 KB |
Output is correct |
3 |
Correct |
21 ms |
37964 KB |
Output is correct |
4 |
Correct |
21 ms |
37984 KB |
Output is correct |
5 |
Correct |
21 ms |
37868 KB |
Output is correct |
6 |
Correct |
21 ms |
37908 KB |
Output is correct |
7 |
Correct |
22 ms |
37968 KB |
Output is correct |
8 |
Correct |
21 ms |
37960 KB |
Output is correct |
9 |
Correct |
21 ms |
37964 KB |
Output is correct |
10 |
Correct |
21 ms |
37980 KB |
Output is correct |
11 |
Correct |
20 ms |
37964 KB |
Output is correct |
12 |
Correct |
20 ms |
37904 KB |
Output is correct |
13 |
Correct |
21 ms |
37968 KB |
Output is correct |
14 |
Correct |
21 ms |
37856 KB |
Output is correct |
15 |
Correct |
21 ms |
37964 KB |
Output is correct |
16 |
Correct |
20 ms |
37964 KB |
Output is correct |
17 |
Correct |
20 ms |
37964 KB |
Output is correct |
18 |
Correct |
21 ms |
37880 KB |
Output is correct |
19 |
Correct |
21 ms |
37876 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
20 ms |
37964 KB |
Output is correct |
2 |
Correct |
20 ms |
37872 KB |
Output is correct |
3 |
Correct |
21 ms |
37964 KB |
Output is correct |
4 |
Correct |
21 ms |
37984 KB |
Output is correct |
5 |
Correct |
21 ms |
37868 KB |
Output is correct |
6 |
Correct |
21 ms |
37908 KB |
Output is correct |
7 |
Correct |
22 ms |
37968 KB |
Output is correct |
8 |
Correct |
21 ms |
37960 KB |
Output is correct |
9 |
Correct |
21 ms |
37964 KB |
Output is correct |
10 |
Correct |
21 ms |
37980 KB |
Output is correct |
11 |
Correct |
20 ms |
37964 KB |
Output is correct |
12 |
Correct |
20 ms |
37904 KB |
Output is correct |
13 |
Correct |
21 ms |
37968 KB |
Output is correct |
14 |
Correct |
21 ms |
37856 KB |
Output is correct |
15 |
Correct |
21 ms |
37964 KB |
Output is correct |
16 |
Correct |
20 ms |
37964 KB |
Output is correct |
17 |
Correct |
20 ms |
37964 KB |
Output is correct |
18 |
Correct |
21 ms |
37880 KB |
Output is correct |
19 |
Correct |
21 ms |
37876 KB |
Output is correct |
20 |
Correct |
61 ms |
46648 KB |
Output is correct |
21 |
Correct |
61 ms |
46648 KB |
Output is correct |
22 |
Correct |
61 ms |
46648 KB |
Output is correct |
23 |
Correct |
52 ms |
46480 KB |
Output is correct |
24 |
Correct |
66 ms |
46608 KB |
Output is correct |
25 |
Correct |
62 ms |
46532 KB |
Output is correct |
26 |
Correct |
63 ms |
46516 KB |
Output is correct |
27 |
Correct |
61 ms |
46588 KB |
Output is correct |
28 |
Correct |
65 ms |
46664 KB |
Output is correct |
29 |
Correct |
60 ms |
46608 KB |
Output is correct |
30 |
Correct |
50 ms |
46600 KB |
Output is correct |
31 |
Correct |
48 ms |
46532 KB |
Output is correct |
32 |
Correct |
64 ms |
46748 KB |
Output is correct |
33 |
Correct |
63 ms |
46848 KB |
Output is correct |
34 |
Correct |
69 ms |
46532 KB |
Output is correct |
35 |
Correct |
66 ms |
46788 KB |
Output is correct |
36 |
Correct |
62 ms |
46812 KB |
Output is correct |
37 |
Correct |
65 ms |
46536 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1483 ms |
264992 KB |
Output is correct |
2 |
Correct |
1469 ms |
268064 KB |
Output is correct |
3 |
Correct |
1806 ms |
268828 KB |
Output is correct |
4 |
Correct |
1825 ms |
268276 KB |
Output is correct |
5 |
Correct |
1630 ms |
271072 KB |
Output is correct |
6 |
Correct |
1365 ms |
268296 KB |
Output is correct |
7 |
Correct |
1146 ms |
268220 KB |
Output is correct |
8 |
Correct |
1595 ms |
268084 KB |
Output is correct |
9 |
Correct |
1368 ms |
267948 KB |
Output is correct |
10 |
Correct |
1126 ms |
268024 KB |
Output is correct |
11 |
Correct |
1984 ms |
271928 KB |
Output is correct |
12 |
Correct |
1967 ms |
272048 KB |
Output is correct |
13 |
Correct |
1982 ms |
271208 KB |
Output is correct |
14 |
Correct |
1992 ms |
271048 KB |
Output is correct |
15 |
Correct |
1447 ms |
268056 KB |
Output is correct |
16 |
Correct |
1472 ms |
268088 KB |
Output is correct |
17 |
Correct |
1464 ms |
267384 KB |
Output is correct |
18 |
Correct |
1972 ms |
271316 KB |
Output is correct |
19 |
Correct |
20 ms |
37964 KB |
Output is correct |
20 |
Correct |
20 ms |
37872 KB |
Output is correct |
21 |
Correct |
21 ms |
37964 KB |
Output is correct |
22 |
Correct |
21 ms |
37984 KB |
Output is correct |
23 |
Correct |
21 ms |
37868 KB |
Output is correct |
24 |
Correct |
21 ms |
37908 KB |
Output is correct |
25 |
Correct |
22 ms |
37968 KB |
Output is correct |
26 |
Correct |
21 ms |
37960 KB |
Output is correct |
27 |
Correct |
21 ms |
37964 KB |
Output is correct |
28 |
Correct |
21 ms |
37980 KB |
Output is correct |
29 |
Correct |
20 ms |
37964 KB |
Output is correct |
30 |
Correct |
20 ms |
37904 KB |
Output is correct |
31 |
Correct |
21 ms |
37968 KB |
Output is correct |
32 |
Correct |
21 ms |
37856 KB |
Output is correct |
33 |
Correct |
21 ms |
37964 KB |
Output is correct |
34 |
Correct |
20 ms |
37964 KB |
Output is correct |
35 |
Correct |
20 ms |
37964 KB |
Output is correct |
36 |
Correct |
21 ms |
37880 KB |
Output is correct |
37 |
Correct |
21 ms |
37876 KB |
Output is correct |
38 |
Correct |
61 ms |
46648 KB |
Output is correct |
39 |
Correct |
61 ms |
46648 KB |
Output is correct |
40 |
Correct |
61 ms |
46648 KB |
Output is correct |
41 |
Correct |
52 ms |
46480 KB |
Output is correct |
42 |
Correct |
66 ms |
46608 KB |
Output is correct |
43 |
Correct |
62 ms |
46532 KB |
Output is correct |
44 |
Correct |
63 ms |
46516 KB |
Output is correct |
45 |
Correct |
61 ms |
46588 KB |
Output is correct |
46 |
Correct |
65 ms |
46664 KB |
Output is correct |
47 |
Correct |
60 ms |
46608 KB |
Output is correct |
48 |
Correct |
50 ms |
46600 KB |
Output is correct |
49 |
Correct |
48 ms |
46532 KB |
Output is correct |
50 |
Correct |
64 ms |
46748 KB |
Output is correct |
51 |
Correct |
63 ms |
46848 KB |
Output is correct |
52 |
Correct |
69 ms |
46532 KB |
Output is correct |
53 |
Correct |
66 ms |
46788 KB |
Output is correct |
54 |
Correct |
62 ms |
46812 KB |
Output is correct |
55 |
Correct |
65 ms |
46536 KB |
Output is correct |
56 |
Correct |
1738 ms |
269544 KB |
Output is correct |
57 |
Correct |
1770 ms |
269800 KB |
Output is correct |
58 |
Correct |
1642 ms |
267832 KB |
Output is correct |
59 |
Correct |
1647 ms |
268040 KB |
Output is correct |
60 |
Correct |
1787 ms |
269180 KB |
Output is correct |
61 |
Correct |
1589 ms |
267764 KB |
Output is correct |
62 |
Correct |
1731 ms |
269324 KB |
Output is correct |
63 |
Correct |
1711 ms |
269244 KB |
Output is correct |
64 |
Correct |
1714 ms |
269172 KB |
Output is correct |
65 |
Correct |
1432 ms |
268432 KB |
Output is correct |
66 |
Correct |
1239 ms |
268344 KB |
Output is correct |
67 |
Correct |
2406 ms |
269244 KB |
Output is correct |
68 |
Correct |
2283 ms |
269244 KB |
Output is correct |
69 |
Correct |
2001 ms |
269060 KB |
Output is correct |
70 |
Correct |
2491 ms |
269288 KB |
Output is correct |
71 |
Correct |
2277 ms |
269316 KB |
Output is correct |
72 |
Correct |
1980 ms |
268948 KB |
Output is correct |
73 |
Correct |
2492 ms |
269112 KB |
Output is correct |
74 |
Correct |
1348 ms |
269056 KB |
Output is correct |
75 |
Correct |
1176 ms |
268856 KB |
Output is correct |
76 |
Correct |
2079 ms |
272472 KB |
Output is correct |
77 |
Correct |
2181 ms |
272708 KB |
Output is correct |
78 |
Correct |
2336 ms |
271660 KB |
Output is correct |
79 |
Correct |
2518 ms |
269484 KB |
Output is correct |
80 |
Correct |
2443 ms |
268892 KB |
Output is correct |
81 |
Correct |
1441 ms |
268984 KB |
Output is correct |
82 |
Correct |
2454 ms |
268700 KB |
Output is correct |
83 |
Correct |
2497 ms |
268952 KB |
Output is correct |
84 |
Correct |
2487 ms |
268236 KB |
Output is correct |
85 |
Correct |
2087 ms |
268988 KB |
Output is correct |
86 |
Correct |
2117 ms |
268924 KB |
Output is correct |
87 |
Correct |
2177 ms |
269136 KB |
Output is correct |
88 |
Correct |
1759 ms |
269344 KB |
Output is correct |
89 |
Correct |
2151 ms |
268892 KB |
Output is correct |
90 |
Correct |
2140 ms |
272796 KB |
Output is correct |
91 |
Correct |
2375 ms |
270920 KB |
Output is correct |
92 |
Correct |
2242 ms |
269180 KB |
Output is correct |
93 |
Correct |
2513 ms |
269044 KB |
Output is correct |
94 |
Correct |
2223 ms |
269224 KB |
Output is correct |
95 |
Correct |
2348 ms |
268764 KB |
Output is correct |
96 |
Correct |
2308 ms |
272624 KB |
Output is correct |
97 |
Correct |
2162 ms |
272720 KB |
Output is correct |
98 |
Correct |
2209 ms |
272912 KB |
Output is correct |
99 |
Correct |
2190 ms |
272568 KB |
Output is correct |
100 |
Correct |
2036 ms |
272688 KB |
Output is correct |
101 |
Correct |
2147 ms |
272592 KB |
Output is correct |
102 |
Correct |
2001 ms |
273464 KB |
Output is correct |
103 |
Correct |
2265 ms |
269376 KB |
Output is correct |