#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef __int128 lll;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pld;
#define MAX 9223372036854775807LL
#define MIN -9223372036854775807LL
#define INF 0x3f3f3f3f3f3f3f3f
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cout << fixed; cout.precision(10);
#define sp << " "
#define en << "\n"
#define compress(v) sort(v.begin(), v.end()), v.erase(unique(v.begin(), v.end()), v.end())
struct gujo
{
ll T, L, R, C;
};
struct gujo2
{
ll A, B, C, D, num;
};
ll n, m;
gujo b[500010];
gujo2 a[500010];
vector<pll> vec[500010];
ll dist[500010];
vector<ll> zip;
priority_queue<pll> pq;
ll P[500010];
ll ans = INF;
struct segtree
{
pll seg[2000010];
void update(ll no, ll s, ll e, ll w, ll v1, ll v2)
{
if(e < w || w < s)
return;
if(s == e)
{
seg[no] = {v1, v2};
return;
}
update(no << 1, s, (s + e) >> 1, w, v1, v2);
update(no << 1 | 1, ((s + e) >> 1) + 1, e, w, v1, v2);
seg[no] = min(seg[no << 1], seg[no << 1 | 1]);
}
pll query(ll no, ll s, ll e, ll l, ll r)
{
if(e < l || r < s)
return {INF, -1};
if(l <= s && e <= r)
return seg[no];
pll L = query(no << 1, s, (s + e) >> 1, l, r);
pll R = query(no << 1 | 1, ((s + e) >> 1) + 1, e, l, r);
return min(L, R);
}
}segt;
int main(void)
{
//fastio
cin >> n >> m;
for(ll i = 1 ; i <= m ; i++)
{
cin >> b[i].T >> b[i].L >> b[i].R >> b[i].C;
a[i].A = b[i].L + b[i].T;
a[i].B = b[i].R + b[i].T + 1;
a[i].C = b[i].L - b[i].T;
a[i].D = b[i].R - b[i].T + 1;
a[i].num = i;
zip.push_back(a[i].A), zip.push_back(a[i].B), zip.push_back(a[i].C), zip.push_back(a[i].D);
}
compress(zip);
for(ll i = 1 ; i <= m ; i++)
{
a[i].A = lower_bound(zip.begin(), zip.end(), a[i].A) - zip.begin() + 1;
a[i].B = lower_bound(zip.begin(), zip.end(), a[i].B) - zip.begin() + 1;
a[i].C = lower_bound(zip.begin(), zip.end(), a[i].C) - zip.begin() + 1;
a[i].D = lower_bound(zip.begin(), zip.end(), a[i].D) - zip.begin() + 1;
}
for(ll i = 1 ; i <= m ; i++)
dist[i] = INF;
for(ll i = 1 ; i <= m ; i++)
{
if(b[i].L == 1)
{
dist[i] = b[i].C;
pq.push({-b[i].C, i});
}
vec[a[i].C].push_back({a[i].A, a[i].num});
}
ll siz = (ll)zip.size();
for(ll i = 1 ; i <= siz ; i++)
{
sort(vec[i].begin(), vec[i].end());
if(!vec[i].empty())
{
P[i] = 1;
segt.update(1, 1, siz, i, vec[i][0].fi, vec[i][0].se);
}
else
segt.update(1, 1, siz, i, INF, -1);
}
while(!pq.empty())
{
pll qq = pq.top();
pq.pop();
while(1)
{
pll gap = segt.query(1, 1, siz, 1, a[qq.se].D);
if(gap.fi > a[qq.se].B)
break;
if(dist[gap.se] == INF)
{
dist[gap.se] = dist[qq.se] + b[gap.se].C;
pq.push({-dist[gap.se], gap.se});
}
if(P[a[gap.se].C] >= (ll)vec[a[gap.se].C].size())
segt.update(1, 1, siz, a[gap.se].C, INF, -1);
else
{
segt.update(1, 1, siz, a[gap.se].C, vec[a[gap.se].C][P[a[gap.se].C]].fi, vec[a[gap.se].C][P[a[gap.se].C]].se);
P[a[gap.se].C]++;
}
}
}
for(ll i = 1 ; i <= m ; i++)
{
if(b[i].R == n)
ans = min(ans, dist[i]);
}
if(ans == INF)
cout << -1;
else
cout << ans;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
231 ms |
45752 KB |
Output is correct |
2 |
Correct |
209 ms |
45632 KB |
Output is correct |
3 |
Correct |
168 ms |
38216 KB |
Output is correct |
4 |
Correct |
167 ms |
38324 KB |
Output is correct |
5 |
Correct |
138 ms |
38584 KB |
Output is correct |
6 |
Correct |
168 ms |
36488 KB |
Output is correct |
7 |
Correct |
159 ms |
38104 KB |
Output is correct |
8 |
Correct |
116 ms |
34936 KB |
Output is correct |
9 |
Correct |
130 ms |
35420 KB |
Output is correct |
10 |
Correct |
138 ms |
38312 KB |
Output is correct |
11 |
Correct |
262 ms |
58768 KB |
Output is correct |
12 |
Correct |
270 ms |
58684 KB |
Output is correct |
13 |
Correct |
308 ms |
58272 KB |
Output is correct |
14 |
Correct |
294 ms |
58296 KB |
Output is correct |
15 |
Correct |
284 ms |
55692 KB |
Output is correct |
16 |
Correct |
277 ms |
55156 KB |
Output is correct |
17 |
Correct |
263 ms |
55084 KB |
Output is correct |
18 |
Correct |
251 ms |
58552 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
20828 KB |
Output is correct |
2 |
Correct |
3 ms |
20828 KB |
Output is correct |
3 |
Correct |
4 ms |
20828 KB |
Output is correct |
4 |
Correct |
4 ms |
20828 KB |
Output is correct |
5 |
Correct |
4 ms |
20828 KB |
Output is correct |
6 |
Correct |
4 ms |
20828 KB |
Output is correct |
7 |
Correct |
4 ms |
20828 KB |
Output is correct |
8 |
Correct |
4 ms |
21084 KB |
Output is correct |
9 |
Correct |
3 ms |
20828 KB |
Output is correct |
10 |
Correct |
4 ms |
20828 KB |
Output is correct |
11 |
Correct |
4 ms |
20828 KB |
Output is correct |
12 |
Correct |
3 ms |
20956 KB |
Output is correct |
13 |
Correct |
4 ms |
20828 KB |
Output is correct |
14 |
Correct |
4 ms |
20828 KB |
Output is correct |
15 |
Correct |
4 ms |
21084 KB |
Output is correct |
16 |
Correct |
4 ms |
20828 KB |
Output is correct |
17 |
Correct |
5 ms |
20828 KB |
Output is correct |
18 |
Correct |
4 ms |
20956 KB |
Output is correct |
19 |
Correct |
4 ms |
20960 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
20828 KB |
Output is correct |
2 |
Correct |
3 ms |
20828 KB |
Output is correct |
3 |
Correct |
4 ms |
20828 KB |
Output is correct |
4 |
Correct |
4 ms |
20828 KB |
Output is correct |
5 |
Correct |
4 ms |
20828 KB |
Output is correct |
6 |
Correct |
4 ms |
20828 KB |
Output is correct |
7 |
Correct |
4 ms |
20828 KB |
Output is correct |
8 |
Correct |
4 ms |
21084 KB |
Output is correct |
9 |
Correct |
3 ms |
20828 KB |
Output is correct |
10 |
Correct |
4 ms |
20828 KB |
Output is correct |
11 |
Correct |
4 ms |
20828 KB |
Output is correct |
12 |
Correct |
3 ms |
20956 KB |
Output is correct |
13 |
Correct |
4 ms |
20828 KB |
Output is correct |
14 |
Correct |
4 ms |
20828 KB |
Output is correct |
15 |
Correct |
4 ms |
21084 KB |
Output is correct |
16 |
Correct |
4 ms |
20828 KB |
Output is correct |
17 |
Correct |
5 ms |
20828 KB |
Output is correct |
18 |
Correct |
4 ms |
20956 KB |
Output is correct |
19 |
Correct |
4 ms |
20960 KB |
Output is correct |
20 |
Correct |
13 ms |
23512 KB |
Output is correct |
21 |
Correct |
13 ms |
23508 KB |
Output is correct |
22 |
Correct |
16 ms |
23708 KB |
Output is correct |
23 |
Correct |
15 ms |
23512 KB |
Output is correct |
24 |
Correct |
16 ms |
23748 KB |
Output is correct |
25 |
Correct |
16 ms |
23632 KB |
Output is correct |
26 |
Correct |
15 ms |
23512 KB |
Output is correct |
27 |
Correct |
14 ms |
23512 KB |
Output is correct |
28 |
Correct |
16 ms |
23580 KB |
Output is correct |
29 |
Correct |
18 ms |
23512 KB |
Output is correct |
30 |
Correct |
14 ms |
23512 KB |
Output is correct |
31 |
Correct |
13 ms |
23512 KB |
Output is correct |
32 |
Correct |
17 ms |
23768 KB |
Output is correct |
33 |
Correct |
16 ms |
23648 KB |
Output is correct |
34 |
Correct |
16 ms |
23512 KB |
Output is correct |
35 |
Correct |
16 ms |
23720 KB |
Output is correct |
36 |
Correct |
17 ms |
23768 KB |
Output is correct |
37 |
Correct |
15 ms |
23512 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
231 ms |
45752 KB |
Output is correct |
2 |
Correct |
209 ms |
45632 KB |
Output is correct |
3 |
Correct |
168 ms |
38216 KB |
Output is correct |
4 |
Correct |
167 ms |
38324 KB |
Output is correct |
5 |
Correct |
138 ms |
38584 KB |
Output is correct |
6 |
Correct |
168 ms |
36488 KB |
Output is correct |
7 |
Correct |
159 ms |
38104 KB |
Output is correct |
8 |
Correct |
116 ms |
34936 KB |
Output is correct |
9 |
Correct |
130 ms |
35420 KB |
Output is correct |
10 |
Correct |
138 ms |
38312 KB |
Output is correct |
11 |
Correct |
262 ms |
58768 KB |
Output is correct |
12 |
Correct |
270 ms |
58684 KB |
Output is correct |
13 |
Correct |
308 ms |
58272 KB |
Output is correct |
14 |
Correct |
294 ms |
58296 KB |
Output is correct |
15 |
Correct |
284 ms |
55692 KB |
Output is correct |
16 |
Correct |
277 ms |
55156 KB |
Output is correct |
17 |
Correct |
263 ms |
55084 KB |
Output is correct |
18 |
Correct |
251 ms |
58552 KB |
Output is correct |
19 |
Correct |
4 ms |
20828 KB |
Output is correct |
20 |
Correct |
3 ms |
20828 KB |
Output is correct |
21 |
Correct |
4 ms |
20828 KB |
Output is correct |
22 |
Correct |
4 ms |
20828 KB |
Output is correct |
23 |
Correct |
4 ms |
20828 KB |
Output is correct |
24 |
Correct |
4 ms |
20828 KB |
Output is correct |
25 |
Correct |
4 ms |
20828 KB |
Output is correct |
26 |
Correct |
4 ms |
21084 KB |
Output is correct |
27 |
Correct |
3 ms |
20828 KB |
Output is correct |
28 |
Correct |
4 ms |
20828 KB |
Output is correct |
29 |
Correct |
4 ms |
20828 KB |
Output is correct |
30 |
Correct |
3 ms |
20956 KB |
Output is correct |
31 |
Correct |
4 ms |
20828 KB |
Output is correct |
32 |
Correct |
4 ms |
20828 KB |
Output is correct |
33 |
Correct |
4 ms |
21084 KB |
Output is correct |
34 |
Correct |
4 ms |
20828 KB |
Output is correct |
35 |
Correct |
5 ms |
20828 KB |
Output is correct |
36 |
Correct |
4 ms |
20956 KB |
Output is correct |
37 |
Correct |
4 ms |
20960 KB |
Output is correct |
38 |
Correct |
13 ms |
23512 KB |
Output is correct |
39 |
Correct |
13 ms |
23508 KB |
Output is correct |
40 |
Correct |
16 ms |
23708 KB |
Output is correct |
41 |
Correct |
15 ms |
23512 KB |
Output is correct |
42 |
Correct |
16 ms |
23748 KB |
Output is correct |
43 |
Correct |
16 ms |
23632 KB |
Output is correct |
44 |
Correct |
15 ms |
23512 KB |
Output is correct |
45 |
Correct |
14 ms |
23512 KB |
Output is correct |
46 |
Correct |
16 ms |
23580 KB |
Output is correct |
47 |
Correct |
18 ms |
23512 KB |
Output is correct |
48 |
Correct |
14 ms |
23512 KB |
Output is correct |
49 |
Correct |
13 ms |
23512 KB |
Output is correct |
50 |
Correct |
17 ms |
23768 KB |
Output is correct |
51 |
Correct |
16 ms |
23648 KB |
Output is correct |
52 |
Correct |
16 ms |
23512 KB |
Output is correct |
53 |
Correct |
16 ms |
23720 KB |
Output is correct |
54 |
Correct |
17 ms |
23768 KB |
Output is correct |
55 |
Correct |
15 ms |
23512 KB |
Output is correct |
56 |
Correct |
236 ms |
44984 KB |
Output is correct |
57 |
Correct |
252 ms |
45084 KB |
Output is correct |
58 |
Correct |
219 ms |
43960 KB |
Output is correct |
59 |
Correct |
229 ms |
44816 KB |
Output is correct |
60 |
Correct |
265 ms |
53228 KB |
Output is correct |
61 |
Correct |
227 ms |
44736 KB |
Output is correct |
62 |
Correct |
227 ms |
44852 KB |
Output is correct |
63 |
Correct |
250 ms |
53428 KB |
Output is correct |
64 |
Correct |
243 ms |
53156 KB |
Output is correct |
65 |
Correct |
242 ms |
47032 KB |
Output is correct |
66 |
Correct |
257 ms |
54044 KB |
Output is correct |
67 |
Correct |
288 ms |
56012 KB |
Output is correct |
68 |
Correct |
271 ms |
56656 KB |
Output is correct |
69 |
Correct |
247 ms |
53752 KB |
Output is correct |
70 |
Correct |
290 ms |
55988 KB |
Output is correct |
71 |
Correct |
269 ms |
56684 KB |
Output is correct |
72 |
Correct |
241 ms |
53652 KB |
Output is correct |
73 |
Correct |
302 ms |
56760 KB |
Output is correct |
74 |
Correct |
227 ms |
55996 KB |
Output is correct |
75 |
Correct |
205 ms |
55732 KB |
Output is correct |
76 |
Correct |
305 ms |
59060 KB |
Output is correct |
77 |
Correct |
385 ms |
60188 KB |
Output is correct |
78 |
Correct |
331 ms |
58904 KB |
Output is correct |
79 |
Correct |
330 ms |
55912 KB |
Output is correct |
80 |
Correct |
302 ms |
55684 KB |
Output is correct |
81 |
Correct |
252 ms |
56248 KB |
Output is correct |
82 |
Correct |
286 ms |
54712 KB |
Output is correct |
83 |
Correct |
306 ms |
55176 KB |
Output is correct |
84 |
Correct |
309 ms |
55108 KB |
Output is correct |
85 |
Correct |
286 ms |
56756 KB |
Output is correct |
86 |
Correct |
270 ms |
55764 KB |
Output is correct |
87 |
Correct |
320 ms |
56248 KB |
Output is correct |
88 |
Correct |
278 ms |
53736 KB |
Output is correct |
89 |
Correct |
273 ms |
55736 KB |
Output is correct |
90 |
Correct |
342 ms |
59440 KB |
Output is correct |
91 |
Correct |
314 ms |
58036 KB |
Output is correct |
92 |
Correct |
296 ms |
56316 KB |
Output is correct |
93 |
Correct |
324 ms |
55728 KB |
Output is correct |
94 |
Correct |
291 ms |
55480 KB |
Output is correct |
95 |
Correct |
317 ms |
55732 KB |
Output is correct |
96 |
Correct |
331 ms |
60596 KB |
Output is correct |
97 |
Correct |
336 ms |
59572 KB |
Output is correct |
98 |
Correct |
343 ms |
59572 KB |
Output is correct |
99 |
Correct |
336 ms |
60384 KB |
Output is correct |
100 |
Correct |
298 ms |
56504 KB |
Output is correct |
101 |
Correct |
380 ms |
60204 KB |
Output is correct |
102 |
Correct |
329 ms |
57232 KB |
Output is correct |
103 |
Correct |
286 ms |
56656 KB |
Output is correct |