#include <bits/stdc++.h>
#include <bits/extc++.h>
#define StarBurstStream ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define iter(a) a.begin(), a.end()
#define riter(a) a.rbegin(), a.rend()
#define lsort(a) sort(iter(a))
#define gsort(a) sort(riter(a))
#define pb(a) push_back(a)
#define eb(a) emplace_back(a)
#define pf(a) push_front(a)
#define ef(a) emplace_front(a)
#define pob pop_back()
#define pof pop_front()
#define mp(a, b) make_pair(a, b)
#define F first
#define S second
#define mt make_tuple
#define gt(t, i) get<i>(t)
#define tomax(a, b) ((a) = max((a), (b)))
#define tomin(a, b) ((a) = min((a), (b)))
#define topos(a) ((a) = (((a) % MOD + MOD) % MOD))
#define uni(a) a.resize(unique(iter(a)) - a.begin())
#define printv(a, b) {bool pvaspace=false; \
for(auto pva : a){ \
if(pvaspace) b << " "; pvaspace=true;\
b << pva;\
}\
b << "\n";}
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pdd = pair<ld, ld>;
using tiii = tuple<int, int, int>;
const ll MOD = 1000000007;
const ll MAX = 1LL << 60;
template<typename A, typename B>
ostream& operator<<(ostream& o, pair<A, B> p){
return o << '(' << p.F << ',' << p.S << ')';
}
ll ifloor(ll a, ll b){
if(b < 0) a *= -1, b *= -1;
if(a < 0) return (a - b + 1) / b;
else return a / b;
}
ll iceil(ll a, ll b){
if(b < 0) a *= -1, b *= -1;
if(a > 0) return (a + b - 1) / b;
else return a / b;
}
struct treat{
ll t, l, r, c;
};
int n, K, m;
vector<ll> dis;
vector<treat> a;
std::priority_queue<pll, vector<pll>, greater<>> pq;
#define lc (2 * id + 1)
#define rc (2 * id + 2)
struct SegmentTree{
vector<set<pll>> st;
void init(){
st.resize(4 * m);
}
void add(int x, pll v, int L = 0, int R = m - 1, int id = 0){
//cerr << "add " << v << " " << id << "\n";
st[id].insert(v);
if(L == R){
return;
}
int M = (L + R) / 2;
if(x <= M) add(x, v, L, M, lc);
else add(x, v, M + 1, R, rc);
}
void relax(int l, int r, int mx, ll d, int L = 0, int R = m - 1, int id = 0){
if(l <= L && R <= r){
//cerr << "sgt relax " << l << " " << r << " " << L << " " << R << " " << id << "\n";
//printv(st[id], cerr);
while(!st[id].empty() && st[id].begin()->F <= mx){
int now = st[id].begin()->S;
if(dis[now] <= d + a[now].c){
st[id].erase(st[id].begin());
continue;
}
//cerr << "ok " << now << "\n";
dis[now] = d + a[now].c;
pq.push(mp(dis[now], now));
st[id].erase(st[id].begin());
}
return;
}
int M = (L + R) / 2;
if(r <= M) relax(l, r, mx, d, L, M, lc);
else if(l > M) relax(l, r, mx, d, M + 1, R, rc);
else{
relax(l, r, mx, d, L, M, lc);
relax(l, r, mx, d, M + 1, R, rc);
}
}
};
int main(){
StarBurstStream
cin >> n >> K;
a.resize(K + 1);
dis.resize(K + 1, MAX);
vector<int> tmp;
SegmentTree st1, st2;
for(int i = 1; i <= K; i++){
cin >> a[i].t >> a[i].l >> a[i].r >> a[i].c;
tmp.eb(a[i].t);
}
lsort(tmp);
uni(tmp);
m = tmp.size();
st1.init(); st2.init();
for(int i = 1; i <= K; i++){
int x = lower_bound(iter(tmp), a[i].t) - tmp.begin();
st1.add(x, mp(-(a[i].t - a[i].l), i));
st2.add(x, mp(a[i].t + a[i].l, i));
}
for(int i = 1; i <= K; i++){
if(a[i].l == 1){
dis[i] = a[i].c;
pq.push(mp(a[i].c, i));
}
}
while(!pq.empty()){
int now = pq.top().S;
ll d = pq.top().F;
pq.pop();
if(d != dis[now]) continue;
int x = lower_bound(iter(tmp), a[now].t) - tmp.begin();
//cerr << "relax1 " << now << "\n";
st1.relax(0, x, -(a[now].t - a[now].r - 1), d);
//cerr << "relax2 " << now << "\n";
st2.relax(x, m - 1, a[now].r + a[now].t + 1, d);
}
ll ans = MAX;
for(int i = 1; i <= K; i++){
if(a[i].r == n){
ans = min(ans, dis[i]);
}
}
if(ans == MAX) ans = -1;
cout << ans << "\n";
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
131 ms |
19872 KB |
Output is correct |
2 |
Correct |
135 ms |
19756 KB |
Output is correct |
3 |
Correct |
131 ms |
19940 KB |
Output is correct |
4 |
Correct |
110 ms |
19460 KB |
Output is correct |
5 |
Correct |
110 ms |
21820 KB |
Output is correct |
6 |
Correct |
104 ms |
19832 KB |
Output is correct |
7 |
Correct |
90 ms |
19664 KB |
Output is correct |
8 |
Correct |
95 ms |
19660 KB |
Output is correct |
9 |
Correct |
88 ms |
19660 KB |
Output is correct |
10 |
Correct |
92 ms |
19648 KB |
Output is correct |
11 |
Correct |
141 ms |
21976 KB |
Output is correct |
12 |
Correct |
173 ms |
21852 KB |
Output is correct |
13 |
Correct |
178 ms |
21800 KB |
Output is correct |
14 |
Correct |
163 ms |
21836 KB |
Output is correct |
15 |
Correct |
174 ms |
19612 KB |
Output is correct |
16 |
Correct |
158 ms |
19652 KB |
Output is correct |
17 |
Correct |
136 ms |
18900 KB |
Output is correct |
18 |
Correct |
159 ms |
21152 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
316 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
320 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
316 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
324 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
316 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
320 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
316 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
324 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
44 ms |
9348 KB |
Output is correct |
21 |
Correct |
39 ms |
9432 KB |
Output is correct |
22 |
Correct |
31 ms |
7116 KB |
Output is correct |
23 |
Correct |
45 ms |
7260 KB |
Output is correct |
24 |
Correct |
53 ms |
11144 KB |
Output is correct |
25 |
Correct |
43 ms |
10992 KB |
Output is correct |
26 |
Correct |
33 ms |
10880 KB |
Output is correct |
27 |
Correct |
42 ms |
10928 KB |
Output is correct |
28 |
Correct |
64 ms |
11048 KB |
Output is correct |
29 |
Correct |
47 ms |
10964 KB |
Output is correct |
30 |
Correct |
29 ms |
10964 KB |
Output is correct |
31 |
Correct |
30 ms |
10832 KB |
Output is correct |
32 |
Correct |
54 ms |
11196 KB |
Output is correct |
33 |
Correct |
41 ms |
11168 KB |
Output is correct |
34 |
Correct |
38 ms |
9804 KB |
Output is correct |
35 |
Correct |
55 ms |
11152 KB |
Output is correct |
36 |
Correct |
42 ms |
11116 KB |
Output is correct |
37 |
Correct |
49 ms |
9792 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
131 ms |
19872 KB |
Output is correct |
2 |
Correct |
135 ms |
19756 KB |
Output is correct |
3 |
Correct |
131 ms |
19940 KB |
Output is correct |
4 |
Correct |
110 ms |
19460 KB |
Output is correct |
5 |
Correct |
110 ms |
21820 KB |
Output is correct |
6 |
Correct |
104 ms |
19832 KB |
Output is correct |
7 |
Correct |
90 ms |
19664 KB |
Output is correct |
8 |
Correct |
95 ms |
19660 KB |
Output is correct |
9 |
Correct |
88 ms |
19660 KB |
Output is correct |
10 |
Correct |
92 ms |
19648 KB |
Output is correct |
11 |
Correct |
141 ms |
21976 KB |
Output is correct |
12 |
Correct |
173 ms |
21852 KB |
Output is correct |
13 |
Correct |
178 ms |
21800 KB |
Output is correct |
14 |
Correct |
163 ms |
21836 KB |
Output is correct |
15 |
Correct |
174 ms |
19612 KB |
Output is correct |
16 |
Correct |
158 ms |
19652 KB |
Output is correct |
17 |
Correct |
136 ms |
18900 KB |
Output is correct |
18 |
Correct |
159 ms |
21152 KB |
Output is correct |
19 |
Correct |
1 ms |
316 KB |
Output is correct |
20 |
Correct |
1 ms |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
1 ms |
320 KB |
Output is correct |
27 |
Correct |
1 ms |
320 KB |
Output is correct |
28 |
Correct |
1 ms |
316 KB |
Output is correct |
29 |
Correct |
1 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
324 KB |
Output is correct |
35 |
Correct |
1 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
212 KB |
Output is correct |
38 |
Correct |
44 ms |
9348 KB |
Output is correct |
39 |
Correct |
39 ms |
9432 KB |
Output is correct |
40 |
Correct |
31 ms |
7116 KB |
Output is correct |
41 |
Correct |
45 ms |
7260 KB |
Output is correct |
42 |
Correct |
53 ms |
11144 KB |
Output is correct |
43 |
Correct |
43 ms |
10992 KB |
Output is correct |
44 |
Correct |
33 ms |
10880 KB |
Output is correct |
45 |
Correct |
42 ms |
10928 KB |
Output is correct |
46 |
Correct |
64 ms |
11048 KB |
Output is correct |
47 |
Correct |
47 ms |
10964 KB |
Output is correct |
48 |
Correct |
29 ms |
10964 KB |
Output is correct |
49 |
Correct |
30 ms |
10832 KB |
Output is correct |
50 |
Correct |
54 ms |
11196 KB |
Output is correct |
51 |
Correct |
41 ms |
11168 KB |
Output is correct |
52 |
Correct |
38 ms |
9804 KB |
Output is correct |
53 |
Correct |
55 ms |
11152 KB |
Output is correct |
54 |
Correct |
42 ms |
11116 KB |
Output is correct |
55 |
Correct |
49 ms |
9792 KB |
Output is correct |
56 |
Correct |
2166 ms |
236100 KB |
Output is correct |
57 |
Correct |
2109 ms |
236496 KB |
Output is correct |
58 |
Correct |
1878 ms |
234740 KB |
Output is correct |
59 |
Correct |
1859 ms |
235180 KB |
Output is correct |
60 |
Correct |
1684 ms |
191656 KB |
Output is correct |
61 |
Correct |
1905 ms |
234700 KB |
Output is correct |
62 |
Correct |
2140 ms |
236172 KB |
Output is correct |
63 |
Correct |
1855 ms |
266968 KB |
Output is correct |
64 |
Correct |
1741 ms |
266904 KB |
Output is correct |
65 |
Correct |
257 ms |
32964 KB |
Output is correct |
66 |
Correct |
1761 ms |
191724 KB |
Output is correct |
67 |
Correct |
2293 ms |
267668 KB |
Output is correct |
68 |
Correct |
1491 ms |
267536 KB |
Output is correct |
69 |
Correct |
1254 ms |
262676 KB |
Output is correct |
70 |
Correct |
2574 ms |
267852 KB |
Output is correct |
71 |
Correct |
1900 ms |
267612 KB |
Output is correct |
72 |
Correct |
1335 ms |
267512 KB |
Output is correct |
73 |
Correct |
2779 ms |
267740 KB |
Output is correct |
74 |
Correct |
1777 ms |
267604 KB |
Output is correct |
75 |
Correct |
1270 ms |
267572 KB |
Output is correct |
76 |
Correct |
2825 ms |
246744 KB |
Output is correct |
77 |
Correct |
2897 ms |
269800 KB |
Output is correct |
78 |
Execution timed out |
3033 ms |
246564 KB |
Time limit exceeded |
79 |
Halted |
0 ms |
0 KB |
- |