#include<iostream>
#include<algorithm>
#include<vector>
#include<queue>
using namespace std;
using lint = long long;
using vint = vector<int>;
using pii = pair<int,int>;
const int MAX_N=100010;
const lint INF=MAX_N*1e+9;
struct Obj
{
lint t,l,r,c;
};
struct Comp
{
int i;
lint v;
bool operator < (const Comp &o) const
{
return v>o.v;
}
};
lint w;
int n;
Obj arr[MAX_N];
int tn;
vector<lint> pt;
priority_queue<Comp> pq;
lint dist[MAX_N];
vector<Comp> seg[2][MAX_N<<2];
void pushpq(int i,lint c)
{
if(dist[i]<INF)return;
dist[i]=c+arr[i].c;
pq.push({i,dist[i]});
}
void update_(int i,int t,int s,int e,int x,int j,lint v)
{
if(s>x || e<=x)
return;
seg[t][i].push_back({j,v});
if(s==x && x+1==e)
return;
update_(i<<1,t,s,(s+e)>>1,x,j,v);
update_(i<<1|1,t,(s+e)>>1,e,x,j,v);
}
void init_(int i,int t,int s,int e)
{
sort(seg[t][i].begin(),seg[t][i].end());
if(s+1==e)return;
init_(i<<1,t,s,(s+e)>>1);
init_(i<<1|1,t,(s+e)>>1,e);
}
void find_(int i,int t,int s,int e,int l,int r,lint v,lint c)
{
if(s>=r || e<=l)return;
if(l<=s && e<=r)
{
while(!seg[t][i].empty() && seg[t][i].back().v<=v)
{
pushpq(seg[t][i].back().i,c);
seg[t][i].pop_back();
}
return;
}
find_(i<<1,t,s,(s+e)>>1,l,r,v,c);
find_(i<<1|1,t,(s+e)>>1,e,l,r,v,c);
}
int main()
{
ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
cin >> w >> n;
for(int i=0;i<n;i++)
{
cin >> arr[i].t >> arr[i].l >> arr[i].r >> arr[i].c;arr[i].l--;
pt.push_back(arr[i].t);
}
sort(pt.begin(),pt.end());
tn=unique(pt.begin(),pt.end())-pt.begin();
pt.resize(tn);
fill(dist,dist+n,INF);
for(int i=0;i<n;i++)
{
int x=lower_bound(pt.begin(),pt.end(),arr[i].t)-pt.begin();
update_(1,0,0,tn,x,i,arr[i].l-arr[i].t);
update_(1,1,0,tn,x,i,arr[i].l+arr[i].t);
if(arr[i].l==0)
pushpq(i,0);
}
for(int t=0;t<2;t++)
init_(1,t,0,tn);
while(!pq.empty())
{
auto p=pq.top();
pq.pop();
int x=lower_bound(pt.begin(),pt.end(),arr[p.i].t)-pt.begin();
find_(1,0,0,tn,0,x+1,arr[p.i].r-arr[p.i].t,p.v);
find_(1,1,0,tn,x,tn,arr[p.i].r+arr[p.i].t,p.v);
}
lint ans=INF;
for(int i=0;i<n;i++)
if(arr[i].r==w)
ans=min(ans,dist[i]);
if(ans==INF)
cout << -1;
else
cout << ans;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
41 ms |
30416 KB |
Output is correct |
2 |
Correct |
40 ms |
30272 KB |
Output is correct |
3 |
Correct |
40 ms |
30828 KB |
Output is correct |
4 |
Correct |
39 ms |
30784 KB |
Output is correct |
5 |
Correct |
44 ms |
33028 KB |
Output is correct |
6 |
Correct |
46 ms |
30416 KB |
Output is correct |
7 |
Correct |
46 ms |
30204 KB |
Output is correct |
8 |
Correct |
33 ms |
30080 KB |
Output is correct |
9 |
Correct |
33 ms |
30212 KB |
Output is correct |
10 |
Correct |
34 ms |
30204 KB |
Output is correct |
11 |
Correct |
51 ms |
33140 KB |
Output is correct |
12 |
Correct |
50 ms |
33200 KB |
Output is correct |
13 |
Correct |
49 ms |
33012 KB |
Output is correct |
14 |
Correct |
51 ms |
33264 KB |
Output is correct |
15 |
Correct |
44 ms |
30200 KB |
Output is correct |
16 |
Correct |
44 ms |
30204 KB |
Output is correct |
17 |
Correct |
41 ms |
29436 KB |
Output is correct |
18 |
Correct |
44 ms |
32336 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
21080 KB |
Output is correct |
2 |
Correct |
3 ms |
21084 KB |
Output is correct |
3 |
Correct |
3 ms |
21340 KB |
Output is correct |
4 |
Correct |
2 ms |
21152 KB |
Output is correct |
5 |
Correct |
2 ms |
21084 KB |
Output is correct |
6 |
Correct |
3 ms |
21164 KB |
Output is correct |
7 |
Correct |
4 ms |
21080 KB |
Output is correct |
8 |
Correct |
3 ms |
21084 KB |
Output is correct |
9 |
Correct |
3 ms |
21084 KB |
Output is correct |
10 |
Correct |
3 ms |
21084 KB |
Output is correct |
11 |
Correct |
2 ms |
21084 KB |
Output is correct |
12 |
Correct |
3 ms |
21080 KB |
Output is correct |
13 |
Correct |
3 ms |
21084 KB |
Output is correct |
14 |
Correct |
3 ms |
21084 KB |
Output is correct |
15 |
Correct |
3 ms |
21340 KB |
Output is correct |
16 |
Correct |
3 ms |
21084 KB |
Output is correct |
17 |
Correct |
3 ms |
21084 KB |
Output is correct |
18 |
Correct |
3 ms |
21084 KB |
Output is correct |
19 |
Correct |
2 ms |
21084 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
21080 KB |
Output is correct |
2 |
Correct |
3 ms |
21084 KB |
Output is correct |
3 |
Correct |
3 ms |
21340 KB |
Output is correct |
4 |
Correct |
2 ms |
21152 KB |
Output is correct |
5 |
Correct |
2 ms |
21084 KB |
Output is correct |
6 |
Correct |
3 ms |
21164 KB |
Output is correct |
7 |
Correct |
4 ms |
21080 KB |
Output is correct |
8 |
Correct |
3 ms |
21084 KB |
Output is correct |
9 |
Correct |
3 ms |
21084 KB |
Output is correct |
10 |
Correct |
3 ms |
21084 KB |
Output is correct |
11 |
Correct |
2 ms |
21084 KB |
Output is correct |
12 |
Correct |
3 ms |
21080 KB |
Output is correct |
13 |
Correct |
3 ms |
21084 KB |
Output is correct |
14 |
Correct |
3 ms |
21084 KB |
Output is correct |
15 |
Correct |
3 ms |
21340 KB |
Output is correct |
16 |
Correct |
3 ms |
21084 KB |
Output is correct |
17 |
Correct |
3 ms |
21084 KB |
Output is correct |
18 |
Correct |
3 ms |
21084 KB |
Output is correct |
19 |
Correct |
2 ms |
21084 KB |
Output is correct |
20 |
Correct |
11 ms |
24156 KB |
Output is correct |
21 |
Correct |
13 ms |
24152 KB |
Output is correct |
22 |
Correct |
11 ms |
23644 KB |
Output is correct |
23 |
Correct |
11 ms |
23828 KB |
Output is correct |
24 |
Correct |
17 ms |
24668 KB |
Output is correct |
25 |
Correct |
14 ms |
24668 KB |
Output is correct |
26 |
Correct |
14 ms |
24588 KB |
Output is correct |
27 |
Correct |
11 ms |
24412 KB |
Output is correct |
28 |
Correct |
13 ms |
24668 KB |
Output is correct |
29 |
Correct |
12 ms |
24620 KB |
Output is correct |
30 |
Correct |
9 ms |
24668 KB |
Output is correct |
31 |
Correct |
9 ms |
24408 KB |
Output is correct |
32 |
Correct |
13 ms |
24756 KB |
Output is correct |
33 |
Correct |
13 ms |
24924 KB |
Output is correct |
34 |
Correct |
12 ms |
24412 KB |
Output is correct |
35 |
Correct |
13 ms |
24668 KB |
Output is correct |
36 |
Correct |
13 ms |
24668 KB |
Output is correct |
37 |
Correct |
12 ms |
24408 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
41 ms |
30416 KB |
Output is correct |
2 |
Correct |
40 ms |
30272 KB |
Output is correct |
3 |
Correct |
40 ms |
30828 KB |
Output is correct |
4 |
Correct |
39 ms |
30784 KB |
Output is correct |
5 |
Correct |
44 ms |
33028 KB |
Output is correct |
6 |
Correct |
46 ms |
30416 KB |
Output is correct |
7 |
Correct |
46 ms |
30204 KB |
Output is correct |
8 |
Correct |
33 ms |
30080 KB |
Output is correct |
9 |
Correct |
33 ms |
30212 KB |
Output is correct |
10 |
Correct |
34 ms |
30204 KB |
Output is correct |
11 |
Correct |
51 ms |
33140 KB |
Output is correct |
12 |
Correct |
50 ms |
33200 KB |
Output is correct |
13 |
Correct |
49 ms |
33012 KB |
Output is correct |
14 |
Correct |
51 ms |
33264 KB |
Output is correct |
15 |
Correct |
44 ms |
30200 KB |
Output is correct |
16 |
Correct |
44 ms |
30204 KB |
Output is correct |
17 |
Correct |
41 ms |
29436 KB |
Output is correct |
18 |
Correct |
44 ms |
32336 KB |
Output is correct |
19 |
Correct |
3 ms |
21080 KB |
Output is correct |
20 |
Correct |
3 ms |
21084 KB |
Output is correct |
21 |
Correct |
3 ms |
21340 KB |
Output is correct |
22 |
Correct |
2 ms |
21152 KB |
Output is correct |
23 |
Correct |
2 ms |
21084 KB |
Output is correct |
24 |
Correct |
3 ms |
21164 KB |
Output is correct |
25 |
Correct |
4 ms |
21080 KB |
Output is correct |
26 |
Correct |
3 ms |
21084 KB |
Output is correct |
27 |
Correct |
3 ms |
21084 KB |
Output is correct |
28 |
Correct |
3 ms |
21084 KB |
Output is correct |
29 |
Correct |
2 ms |
21084 KB |
Output is correct |
30 |
Correct |
3 ms |
21080 KB |
Output is correct |
31 |
Correct |
3 ms |
21084 KB |
Output is correct |
32 |
Correct |
3 ms |
21084 KB |
Output is correct |
33 |
Correct |
3 ms |
21340 KB |
Output is correct |
34 |
Correct |
3 ms |
21084 KB |
Output is correct |
35 |
Correct |
3 ms |
21084 KB |
Output is correct |
36 |
Correct |
3 ms |
21084 KB |
Output is correct |
37 |
Correct |
2 ms |
21084 KB |
Output is correct |
38 |
Correct |
11 ms |
24156 KB |
Output is correct |
39 |
Correct |
13 ms |
24152 KB |
Output is correct |
40 |
Correct |
11 ms |
23644 KB |
Output is correct |
41 |
Correct |
11 ms |
23828 KB |
Output is correct |
42 |
Correct |
17 ms |
24668 KB |
Output is correct |
43 |
Correct |
14 ms |
24668 KB |
Output is correct |
44 |
Correct |
14 ms |
24588 KB |
Output is correct |
45 |
Correct |
11 ms |
24412 KB |
Output is correct |
46 |
Correct |
13 ms |
24668 KB |
Output is correct |
47 |
Correct |
12 ms |
24620 KB |
Output is correct |
48 |
Correct |
9 ms |
24668 KB |
Output is correct |
49 |
Correct |
9 ms |
24408 KB |
Output is correct |
50 |
Correct |
13 ms |
24756 KB |
Output is correct |
51 |
Correct |
13 ms |
24924 KB |
Output is correct |
52 |
Correct |
12 ms |
24412 KB |
Output is correct |
53 |
Correct |
13 ms |
24668 KB |
Output is correct |
54 |
Correct |
13 ms |
24668 KB |
Output is correct |
55 |
Correct |
12 ms |
24408 KB |
Output is correct |
56 |
Correct |
326 ms |
94288 KB |
Output is correct |
57 |
Correct |
328 ms |
94664 KB |
Output is correct |
58 |
Correct |
309 ms |
92628 KB |
Output is correct |
59 |
Correct |
365 ms |
93100 KB |
Output is correct |
60 |
Correct |
238 ms |
84672 KB |
Output is correct |
61 |
Correct |
314 ms |
92820 KB |
Output is correct |
62 |
Correct |
332 ms |
94032 KB |
Output is correct |
63 |
Correct |
362 ms |
100084 KB |
Output is correct |
64 |
Correct |
347 ms |
99968 KB |
Output is correct |
65 |
Correct |
55 ms |
34428 KB |
Output is correct |
66 |
Correct |
233 ms |
84692 KB |
Output is correct |
67 |
Correct |
342 ms |
100292 KB |
Output is correct |
68 |
Correct |
308 ms |
99848 KB |
Output is correct |
69 |
Correct |
256 ms |
98500 KB |
Output is correct |
70 |
Correct |
379 ms |
100288 KB |
Output is correct |
71 |
Correct |
304 ms |
99524 KB |
Output is correct |
72 |
Correct |
280 ms |
99780 KB |
Output is correct |
73 |
Correct |
373 ms |
100376 KB |
Output is correct |
74 |
Correct |
222 ms |
99528 KB |
Output is correct |
75 |
Correct |
207 ms |
99420 KB |
Output is correct |
76 |
Correct |
363 ms |
99320 KB |
Output is correct |
77 |
Correct |
409 ms |
103880 KB |
Output is correct |
78 |
Correct |
373 ms |
99008 KB |
Output is correct |
79 |
Correct |
448 ms |
100852 KB |
Output is correct |
80 |
Correct |
373 ms |
95936 KB |
Output is correct |
81 |
Correct |
310 ms |
100548 KB |
Output is correct |
82 |
Correct |
378 ms |
95432 KB |
Output is correct |
83 |
Correct |
413 ms |
100008 KB |
Output is correct |
84 |
Correct |
431 ms |
100292 KB |
Output is correct |
85 |
Correct |
372 ms |
100544 KB |
Output is correct |
86 |
Correct |
368 ms |
100636 KB |
Output is correct |
87 |
Correct |
382 ms |
100444 KB |
Output is correct |
88 |
Correct |
392 ms |
100800 KB |
Output is correct |
89 |
Correct |
393 ms |
100908 KB |
Output is correct |
90 |
Correct |
398 ms |
103872 KB |
Output is correct |
91 |
Correct |
399 ms |
102380 KB |
Output is correct |
92 |
Correct |
375 ms |
100560 KB |
Output is correct |
93 |
Correct |
403 ms |
100800 KB |
Output is correct |
94 |
Correct |
418 ms |
100784 KB |
Output is correct |
95 |
Correct |
405 ms |
100768 KB |
Output is correct |
96 |
Correct |
394 ms |
103712 KB |
Output is correct |
97 |
Correct |
405 ms |
103940 KB |
Output is correct |
98 |
Correct |
397 ms |
103624 KB |
Output is correct |
99 |
Correct |
398 ms |
103728 KB |
Output is correct |
100 |
Correct |
393 ms |
104644 KB |
Output is correct |
101 |
Correct |
403 ms |
103620 KB |
Output is correct |
102 |
Correct |
407 ms |
104064 KB |
Output is correct |
103 |
Correct |
396 ms |
101060 KB |
Output is correct |