#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 2e5 + 12, MOD = (int)1e9 + 7;
const ll inf = 1e18;
ll res = inf, d[N];
int n, m, s;
struct tr{
ll t, l, r, c;
};
vector<int> T;
vector<tr> a;
set<pair<ll, int>> st, x[N * 4], y[N * 4];
bool del[N];
void ins(int pos, pair<ll, int> val, bool ok, int v = 1, int tl = 1, int tr = s) {
// cout << tl << ' ' << tr << ' ' << ok << '\n';
if(ok) {
x[v].insert(val);
} else {
y[v].insert(val);
}
if(tl == tr) return;
int tm = (tl + tr) >> 1;
if(pos <= tm) ins(pos, val, ok, v + v, tl, tm);
else ins(pos, val, ok, v + v + 1, tm + 1, tr);
}
int pos[N];
void upd(int l, int r, ll val, ll cost, bool ok, int v = 1, int tl = 1, int tr = s) {
if(l > r || tl > r || l > tr) return;
if(tl >= l && tr <= r) {
if(ok) {
while(!x[v].empty()) {
auto [f, i] = (*x[v].begin());
if(f > val) break;
x[v].erase({f, i});
if(!del[i]) {
del[i] = 1;
st.insert({cost + a[i].c, i});
}
}
} else {
while(!y[v].empty()) {
auto [f, i] = (*y[v].begin());
if(f > val) break;
y[v].erase({f, i});
if(!del[i]) {
del[i] = 1;
st.insert({cost + a[i].c, i});
}
}
}
} else {
int tm = (tl + tr) >> 1;
upd(l, r, val, cost, ok, v + v, tl, tm);
upd(l, r, val, cost, ok, v + v + 1, tm + 1, tr);
}
}
void test() {
cin >> n >> m;
a.resize(m);
for(int i = 0; i < m; i++) {
d[i] = inf;
cin >> a[i].t >> a[i].l >> a[i].r >> a[i].c;
T.push_back(a[i].t);
}
sort(T.begin(), T.end());
T.resize(unique(T.begin(), T.end()) - T.begin());
s = (int)T.size();
for(int i = 0; i < m; i++) {
int j = lower_bound(T.begin(), T.end(), a[i].t) - T.begin() + 1;
pos[i] = j;
if(a[i].l == 1) {
del[i] = 1;
st.insert({a[i].c, i});
} else {
ins(j, {a[i].l - a[i].t, i}, 1);
ins(j, {a[i].l + a[i].t, i}, 0);
}
}
while(!st.empty()) {
auto [w, v] = (*st.begin());
d[v] = w;
st.erase(st.begin());
int j = pos[v];
upd(1, j, a[v].r - a[v].t + 1, d[v], 1);
upd(j, s, a[v].r + a[v].t + 1, d[v], 0);
}
for(int i = 0; i < m; i++) {
if(a[i].r == n) {
res = min(res, d[i]);
}
}
if(res == inf) {
res = -1;
}
cout << res << '\n';
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
int t = 1;
// cin >> t;
while(t--)
test();
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
111 ms |
93388 KB |
Output is correct |
2 |
Correct |
108 ms |
93384 KB |
Output is correct |
3 |
Correct |
127 ms |
91612 KB |
Output is correct |
4 |
Correct |
120 ms |
91848 KB |
Output is correct |
5 |
Correct |
115 ms |
93128 KB |
Output is correct |
6 |
Correct |
97 ms |
93384 KB |
Output is correct |
7 |
Correct |
87 ms |
93348 KB |
Output is correct |
8 |
Correct |
68 ms |
93136 KB |
Output is correct |
9 |
Correct |
75 ms |
93248 KB |
Output is correct |
10 |
Correct |
78 ms |
93384 KB |
Output is correct |
11 |
Correct |
126 ms |
93384 KB |
Output is correct |
12 |
Correct |
127 ms |
93244 KB |
Output is correct |
13 |
Correct |
133 ms |
93384 KB |
Output is correct |
14 |
Correct |
131 ms |
93384 KB |
Output is correct |
15 |
Correct |
112 ms |
93384 KB |
Output is correct |
16 |
Correct |
116 ms |
93164 KB |
Output is correct |
17 |
Correct |
112 ms |
93384 KB |
Output is correct |
18 |
Correct |
128 ms |
93384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
11 ms |
76368 KB |
Output is correct |
2 |
Correct |
14 ms |
76368 KB |
Output is correct |
3 |
Correct |
12 ms |
76368 KB |
Output is correct |
4 |
Correct |
13 ms |
76368 KB |
Output is correct |
5 |
Correct |
15 ms |
76368 KB |
Output is correct |
6 |
Correct |
15 ms |
76368 KB |
Output is correct |
7 |
Correct |
14 ms |
76372 KB |
Output is correct |
8 |
Correct |
13 ms |
76368 KB |
Output is correct |
9 |
Correct |
12 ms |
76368 KB |
Output is correct |
10 |
Correct |
12 ms |
76368 KB |
Output is correct |
11 |
Correct |
13 ms |
76368 KB |
Output is correct |
12 |
Correct |
14 ms |
76288 KB |
Output is correct |
13 |
Correct |
13 ms |
76368 KB |
Output is correct |
14 |
Correct |
13 ms |
76368 KB |
Output is correct |
15 |
Correct |
14 ms |
76368 KB |
Output is correct |
16 |
Correct |
12 ms |
76368 KB |
Output is correct |
17 |
Correct |
13 ms |
76368 KB |
Output is correct |
18 |
Correct |
14 ms |
76368 KB |
Output is correct |
19 |
Correct |
14 ms |
76368 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
11 ms |
76368 KB |
Output is correct |
2 |
Correct |
14 ms |
76368 KB |
Output is correct |
3 |
Correct |
12 ms |
76368 KB |
Output is correct |
4 |
Correct |
13 ms |
76368 KB |
Output is correct |
5 |
Correct |
15 ms |
76368 KB |
Output is correct |
6 |
Correct |
15 ms |
76368 KB |
Output is correct |
7 |
Correct |
14 ms |
76372 KB |
Output is correct |
8 |
Correct |
13 ms |
76368 KB |
Output is correct |
9 |
Correct |
12 ms |
76368 KB |
Output is correct |
10 |
Correct |
12 ms |
76368 KB |
Output is correct |
11 |
Correct |
13 ms |
76368 KB |
Output is correct |
12 |
Correct |
14 ms |
76288 KB |
Output is correct |
13 |
Correct |
13 ms |
76368 KB |
Output is correct |
14 |
Correct |
13 ms |
76368 KB |
Output is correct |
15 |
Correct |
14 ms |
76368 KB |
Output is correct |
16 |
Correct |
12 ms |
76368 KB |
Output is correct |
17 |
Correct |
13 ms |
76368 KB |
Output is correct |
18 |
Correct |
14 ms |
76368 KB |
Output is correct |
19 |
Correct |
14 ms |
76368 KB |
Output is correct |
20 |
Correct |
40 ms |
82504 KB |
Output is correct |
21 |
Correct |
50 ms |
82504 KB |
Output is correct |
22 |
Correct |
45 ms |
82760 KB |
Output is correct |
23 |
Correct |
42 ms |
82844 KB |
Output is correct |
24 |
Correct |
46 ms |
83528 KB |
Output is correct |
25 |
Correct |
49 ms |
84732 KB |
Output is correct |
26 |
Correct |
45 ms |
84960 KB |
Output is correct |
27 |
Correct |
41 ms |
84836 KB |
Output is correct |
28 |
Correct |
45 ms |
83536 KB |
Output is correct |
29 |
Correct |
46 ms |
84808 KB |
Output is correct |
30 |
Correct |
42 ms |
84808 KB |
Output is correct |
31 |
Correct |
43 ms |
84812 KB |
Output is correct |
32 |
Correct |
52 ms |
84816 KB |
Output is correct |
33 |
Correct |
55 ms |
84808 KB |
Output is correct |
34 |
Correct |
55 ms |
84552 KB |
Output is correct |
35 |
Correct |
52 ms |
84808 KB |
Output is correct |
36 |
Correct |
54 ms |
84816 KB |
Output is correct |
37 |
Correct |
49 ms |
84552 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
111 ms |
93388 KB |
Output is correct |
2 |
Correct |
108 ms |
93384 KB |
Output is correct |
3 |
Correct |
127 ms |
91612 KB |
Output is correct |
4 |
Correct |
120 ms |
91848 KB |
Output is correct |
5 |
Correct |
115 ms |
93128 KB |
Output is correct |
6 |
Correct |
97 ms |
93384 KB |
Output is correct |
7 |
Correct |
87 ms |
93348 KB |
Output is correct |
8 |
Correct |
68 ms |
93136 KB |
Output is correct |
9 |
Correct |
75 ms |
93248 KB |
Output is correct |
10 |
Correct |
78 ms |
93384 KB |
Output is correct |
11 |
Correct |
126 ms |
93384 KB |
Output is correct |
12 |
Correct |
127 ms |
93244 KB |
Output is correct |
13 |
Correct |
133 ms |
93384 KB |
Output is correct |
14 |
Correct |
131 ms |
93384 KB |
Output is correct |
15 |
Correct |
112 ms |
93384 KB |
Output is correct |
16 |
Correct |
116 ms |
93164 KB |
Output is correct |
17 |
Correct |
112 ms |
93384 KB |
Output is correct |
18 |
Correct |
128 ms |
93384 KB |
Output is correct |
19 |
Correct |
11 ms |
76368 KB |
Output is correct |
20 |
Correct |
14 ms |
76368 KB |
Output is correct |
21 |
Correct |
12 ms |
76368 KB |
Output is correct |
22 |
Correct |
13 ms |
76368 KB |
Output is correct |
23 |
Correct |
15 ms |
76368 KB |
Output is correct |
24 |
Correct |
15 ms |
76368 KB |
Output is correct |
25 |
Correct |
14 ms |
76372 KB |
Output is correct |
26 |
Correct |
13 ms |
76368 KB |
Output is correct |
27 |
Correct |
12 ms |
76368 KB |
Output is correct |
28 |
Correct |
12 ms |
76368 KB |
Output is correct |
29 |
Correct |
13 ms |
76368 KB |
Output is correct |
30 |
Correct |
14 ms |
76288 KB |
Output is correct |
31 |
Correct |
13 ms |
76368 KB |
Output is correct |
32 |
Correct |
13 ms |
76368 KB |
Output is correct |
33 |
Correct |
14 ms |
76368 KB |
Output is correct |
34 |
Correct |
12 ms |
76368 KB |
Output is correct |
35 |
Correct |
13 ms |
76368 KB |
Output is correct |
36 |
Correct |
14 ms |
76368 KB |
Output is correct |
37 |
Correct |
14 ms |
76368 KB |
Output is correct |
38 |
Correct |
40 ms |
82504 KB |
Output is correct |
39 |
Correct |
50 ms |
82504 KB |
Output is correct |
40 |
Correct |
45 ms |
82760 KB |
Output is correct |
41 |
Correct |
42 ms |
82844 KB |
Output is correct |
42 |
Correct |
46 ms |
83528 KB |
Output is correct |
43 |
Correct |
49 ms |
84732 KB |
Output is correct |
44 |
Correct |
45 ms |
84960 KB |
Output is correct |
45 |
Correct |
41 ms |
84836 KB |
Output is correct |
46 |
Correct |
45 ms |
83536 KB |
Output is correct |
47 |
Correct |
46 ms |
84808 KB |
Output is correct |
48 |
Correct |
42 ms |
84808 KB |
Output is correct |
49 |
Correct |
43 ms |
84812 KB |
Output is correct |
50 |
Correct |
52 ms |
84816 KB |
Output is correct |
51 |
Correct |
55 ms |
84808 KB |
Output is correct |
52 |
Correct |
55 ms |
84552 KB |
Output is correct |
53 |
Correct |
52 ms |
84808 KB |
Output is correct |
54 |
Correct |
54 ms |
84816 KB |
Output is correct |
55 |
Correct |
49 ms |
84552 KB |
Output is correct |
56 |
Correct |
1220 ms |
239132 KB |
Output is correct |
57 |
Correct |
1265 ms |
239056 KB |
Output is correct |
58 |
Correct |
1564 ms |
288968 KB |
Output is correct |
59 |
Correct |
1359 ms |
288772 KB |
Output is correct |
60 |
Correct |
1306 ms |
260536 KB |
Output is correct |
61 |
Correct |
1510 ms |
288904 KB |
Output is correct |
62 |
Correct |
1269 ms |
239224 KB |
Output is correct |
63 |
Correct |
1561 ms |
302396 KB |
Output is correct |
64 |
Correct |
1535 ms |
305512 KB |
Output is correct |
65 |
Correct |
204 ms |
109068 KB |
Output is correct |
66 |
Correct |
1393 ms |
264148 KB |
Output is correct |
67 |
Correct |
1477 ms |
304076 KB |
Output is correct |
68 |
Correct |
1142 ms |
305896 KB |
Output is correct |
69 |
Correct |
1140 ms |
304568 KB |
Output is correct |
70 |
Correct |
1852 ms |
304692 KB |
Output is correct |
71 |
Correct |
1422 ms |
305908 KB |
Output is correct |
72 |
Correct |
1220 ms |
306144 KB |
Output is correct |
73 |
Correct |
1963 ms |
304612 KB |
Output is correct |
74 |
Correct |
1121 ms |
306060 KB |
Output is correct |
75 |
Correct |
958 ms |
306140 KB |
Output is correct |
76 |
Correct |
2009 ms |
296652 KB |
Output is correct |
77 |
Correct |
2372 ms |
306124 KB |
Output is correct |
78 |
Correct |
2310 ms |
296728 KB |
Output is correct |
79 |
Correct |
2396 ms |
306124 KB |
Output is correct |
80 |
Correct |
2059 ms |
296620 KB |
Output is correct |
81 |
Correct |
2025 ms |
306076 KB |
Output is correct |
82 |
Correct |
2372 ms |
295708 KB |
Output is correct |
83 |
Correct |
2586 ms |
304844 KB |
Output is correct |
84 |
Correct |
2703 ms |
305268 KB |
Output is correct |
85 |
Correct |
2095 ms |
306116 KB |
Output is correct |
86 |
Correct |
2299 ms |
306124 KB |
Output is correct |
87 |
Correct |
2336 ms |
306176 KB |
Output is correct |
88 |
Correct |
1928 ms |
306236 KB |
Output is correct |
89 |
Correct |
2172 ms |
306152 KB |
Output is correct |
90 |
Correct |
2053 ms |
306104 KB |
Output is correct |
91 |
Correct |
2316 ms |
306124 KB |
Output is correct |
92 |
Correct |
2361 ms |
306212 KB |
Output is correct |
93 |
Correct |
2488 ms |
306124 KB |
Output is correct |
94 |
Correct |
2165 ms |
306092 KB |
Output is correct |
95 |
Correct |
2243 ms |
306212 KB |
Output is correct |
96 |
Correct |
2361 ms |
306180 KB |
Output is correct |
97 |
Correct |
2402 ms |
306288 KB |
Output is correct |
98 |
Correct |
2527 ms |
306124 KB |
Output is correct |
99 |
Correct |
2308 ms |
306124 KB |
Output is correct |
100 |
Correct |
1866 ms |
284708 KB |
Output is correct |
101 |
Correct |
2437 ms |
306212 KB |
Output is correct |
102 |
Correct |
2419 ms |
306212 KB |
Output is correct |
103 |
Correct |
2421 ms |
306124 KB |
Output is correct |