#define here cerr<<"===========================================\n"
#define dbg(x) cerr<<#x<<": "<<x<<endl;
#include "bits/stdc++.h"
//#include <ext/pb_ds/tree_policy.hpp>
//#include <ext/pb_ds/assoc_container.hpp>
#define ld double
#define ll long long
#define llinf 100000000000000000LL // 10^17
#define pb push_back
#define popb pop_back
#define fi first
#define sc second
#define endl '\n'
#define pll pair<ll,ll>
#define pld pair<ld,ld>
#define sz(a) (ll)(a.size())
#define all(a) a.begin(),a.end()
#define ceri(a,l,r) {cerr<<#a<<": ";for(ll i_ = l;i_<=r;i_++) cerr<<a[i_]<< " ";cerr<<endl;}
#define cer(a) {cerr<<#a<<": ";for(ll x_ : a) cerr<<x_<< " ";cerr<<endl;}
#define daj_mi_malo_vremena ios_base::sync_with_stdio(false);cerr.tie(0);cout.tie(0);cin.tie(0);
using namespace std;
//using namespace __gnu_pbds;
/*
ll add(ll x,ll y){
x+=y;
if(x<0){
x%=mod;
x+=mod;
}else{
if(x>=mod) x%=mod;
}
return x;
}
ll mul(ll a,ll b){
ll ans = (a*b)%mod;
if(ans<0) ans+=mod;
return ans;
}
typedef tree<int,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
typedef tree<int,null_type,less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update> ordered_multiset;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll rnd(ll l,ll r){
return uniform_int_distribution<ll>(l,r)(rng);
}
*/
#define maxn 100005
#define maxx 400025
ll n,m;
struct tupl{
ll t,l,r,c;
} a[maxn];
ll tsz = 1,tsz2 = 1;
set<pair<int,int> > t[4*maxn];
set<pair<int,int> > t2[4*maxn];
void upd(ll v,ll tl,ll tr,ll i,pll p,bool f){
if(f) t[v].insert(p);
else t[v].erase(p);
if(tl==tr) return;
ll mid = (tl+tr)/2;
if(i<=mid) upd(2*v,tl,mid,i,p,f);
else upd(2*v+1,mid+1,tr,i,p,f);
}
void upd2(ll v,ll tl,ll tr,ll i,pll p,bool f){
if(f) t2[v].insert(p);
else t2[v].erase(p);
if(tl==tr) return;
ll mid = (tl+tr)/2;
if(i<=mid) upd2(2*v,tl,mid,i,p,f);
else upd2(2*v+1,mid+1,tr,i,p,f);
}
set<ll> s;
void get(ll v,ll tl,ll tr,ll l,ll r,ll x){
if(l>r) return;
if(tl==l&&tr==r){
auto it = t[v].begin();
while(it!=t[v].end()&&(*it).fi<=x){
s.insert((*it).sc);
it++;
}
return;
}
ll mid = (tl+tr)/2;
get(2*v,tl,mid,l,min(mid,r),x);
get(2*v+1,mid+1,tr,max(mid+1,l),r,x);
}
void get2(ll v,ll tl,ll tr,ll l,ll r,ll x){
if(l>r) return;
if(tl==l&&tr==r){
auto it = t2[v].begin();
while(it!=t2[v].end()&&(*it).fi<=x){
s.insert((*it).sc);
it++;
}
return;
}
ll mid = (tl+tr)/2;
get2(2*v,tl,mid,l,min(mid,r),x);
get2(2*v+1,mid+1,tr,max(mid+1,l),r,x);
}
ll d[maxn];
set<ll> st;
map<ll,ll> mp;
ll it = 0;
void tc(){
cin >> m >> n;
for(ll i = 1;i<=n;i++) cin >> a[i].t >> a[i].l >> a[i].r >> a[i].c;
for(ll i = 1;i<=n;i++) a[i].l--;
for(ll i = 1;i<=n;i++) st.insert(a[i].t);
for(ll x : st) mp[x] = ++it;
ll mxt = it;
for(ll i = 1;i<=n;i++){
if(a[i].l==0) continue;
upd(1,1,mxt,mp[a[i].t],{a[i].l+a[i].t,i},1);
upd2(1,1,mxt,mp[a[i].t],{a[i].l-a[i].t,i},1);
}
for(ll i = 1;i<=n;i++) d[i] = llinf;
priority_queue<pll> pq;
for(ll i = 1;i<=n;i++){
if(a[i].l==0){
d[i] = a[i].c;
pq.push({-d[i],i});
}
}
while(sz(pq)){
pll p = pq.top();
ll i = p.sc;
pq.pop();
if(-p.fi!=d[i]) continue;
s.clear();
get(1,1,mxt,mp[a[i].t],mxt,a[i].r+a[i].t);
get2(1,1,mxt,1,mp[a[i].t],a[i].r-a[i].t);
for(ll j : s){
if(j==i) continue;
d[j] = d[i] + a[j].c;
upd(1,1,mxt,mp[a[j].t],{a[j].l+a[j].t,j},0);
upd2(1,1,mxt,mp[a[j].t],{a[j].l-a[j].t,j},0);
pq.push({-d[j],j});
}
}
ll ans = llinf;
for(ll i = 1;i<=n;i++) if(a[i].r==m) ans = min(ans,d[i]);
if(ans==llinf) ans = -1;
cout<<ans<<endl;
}
int main(){
daj_mi_malo_vremena
int t; t = 1;
while(t--){
tc();
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
133 ms |
51148 KB |
Output is correct |
2 |
Correct |
134 ms |
51096 KB |
Output is correct |
3 |
Correct |
120 ms |
49896 KB |
Output is correct |
4 |
Correct |
131 ms |
49948 KB |
Output is correct |
5 |
Correct |
157 ms |
53244 KB |
Output is correct |
6 |
Correct |
139 ms |
51412 KB |
Output is correct |
7 |
Correct |
107 ms |
51148 KB |
Output is correct |
8 |
Correct |
91 ms |
51012 KB |
Output is correct |
9 |
Correct |
86 ms |
51072 KB |
Output is correct |
10 |
Correct |
77 ms |
51184 KB |
Output is correct |
11 |
Correct |
236 ms |
56708 KB |
Output is correct |
12 |
Correct |
211 ms |
54500 KB |
Output is correct |
13 |
Correct |
187 ms |
53300 KB |
Output is correct |
14 |
Correct |
201 ms |
53376 KB |
Output is correct |
15 |
Correct |
168 ms |
51148 KB |
Output is correct |
16 |
Correct |
177 ms |
51176 KB |
Output is correct |
17 |
Correct |
161 ms |
51276 KB |
Output is correct |
18 |
Correct |
223 ms |
55804 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
19 ms |
37800 KB |
Output is correct |
2 |
Correct |
21 ms |
37852 KB |
Output is correct |
3 |
Correct |
19 ms |
37844 KB |
Output is correct |
4 |
Correct |
19 ms |
37852 KB |
Output is correct |
5 |
Correct |
22 ms |
37884 KB |
Output is correct |
6 |
Correct |
19 ms |
37904 KB |
Output is correct |
7 |
Correct |
22 ms |
37880 KB |
Output is correct |
8 |
Correct |
24 ms |
37888 KB |
Output is correct |
9 |
Correct |
19 ms |
37864 KB |
Output is correct |
10 |
Correct |
22 ms |
37844 KB |
Output is correct |
11 |
Correct |
19 ms |
37868 KB |
Output is correct |
12 |
Correct |
18 ms |
37844 KB |
Output is correct |
13 |
Correct |
20 ms |
37844 KB |
Output is correct |
14 |
Correct |
18 ms |
37844 KB |
Output is correct |
15 |
Correct |
18 ms |
37796 KB |
Output is correct |
16 |
Correct |
20 ms |
37844 KB |
Output is correct |
17 |
Correct |
17 ms |
37832 KB |
Output is correct |
18 |
Correct |
17 ms |
37820 KB |
Output is correct |
19 |
Correct |
21 ms |
38016 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
19 ms |
37800 KB |
Output is correct |
2 |
Correct |
21 ms |
37852 KB |
Output is correct |
3 |
Correct |
19 ms |
37844 KB |
Output is correct |
4 |
Correct |
19 ms |
37852 KB |
Output is correct |
5 |
Correct |
22 ms |
37884 KB |
Output is correct |
6 |
Correct |
19 ms |
37904 KB |
Output is correct |
7 |
Correct |
22 ms |
37880 KB |
Output is correct |
8 |
Correct |
24 ms |
37888 KB |
Output is correct |
9 |
Correct |
19 ms |
37864 KB |
Output is correct |
10 |
Correct |
22 ms |
37844 KB |
Output is correct |
11 |
Correct |
19 ms |
37868 KB |
Output is correct |
12 |
Correct |
18 ms |
37844 KB |
Output is correct |
13 |
Correct |
20 ms |
37844 KB |
Output is correct |
14 |
Correct |
18 ms |
37844 KB |
Output is correct |
15 |
Correct |
18 ms |
37796 KB |
Output is correct |
16 |
Correct |
20 ms |
37844 KB |
Output is correct |
17 |
Correct |
17 ms |
37832 KB |
Output is correct |
18 |
Correct |
17 ms |
37820 KB |
Output is correct |
19 |
Correct |
21 ms |
38016 KB |
Output is correct |
20 |
Correct |
45 ms |
42708 KB |
Output is correct |
21 |
Correct |
51 ms |
42752 KB |
Output is correct |
22 |
Correct |
47 ms |
42780 KB |
Output is correct |
23 |
Correct |
46 ms |
42820 KB |
Output is correct |
24 |
Correct |
62 ms |
43916 KB |
Output is correct |
25 |
Correct |
61 ms |
44796 KB |
Output is correct |
26 |
Correct |
58 ms |
44816 KB |
Output is correct |
27 |
Correct |
64 ms |
44876 KB |
Output is correct |
28 |
Correct |
60 ms |
43928 KB |
Output is correct |
29 |
Correct |
56 ms |
44720 KB |
Output is correct |
30 |
Correct |
43 ms |
44840 KB |
Output is correct |
31 |
Correct |
45 ms |
44872 KB |
Output is correct |
32 |
Correct |
68 ms |
45100 KB |
Output is correct |
33 |
Correct |
87 ms |
45076 KB |
Output is correct |
34 |
Correct |
61 ms |
44400 KB |
Output is correct |
35 |
Correct |
72 ms |
45100 KB |
Output is correct |
36 |
Correct |
74 ms |
45040 KB |
Output is correct |
37 |
Correct |
62 ms |
44400 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
133 ms |
51148 KB |
Output is correct |
2 |
Correct |
134 ms |
51096 KB |
Output is correct |
3 |
Correct |
120 ms |
49896 KB |
Output is correct |
4 |
Correct |
131 ms |
49948 KB |
Output is correct |
5 |
Correct |
157 ms |
53244 KB |
Output is correct |
6 |
Correct |
139 ms |
51412 KB |
Output is correct |
7 |
Correct |
107 ms |
51148 KB |
Output is correct |
8 |
Correct |
91 ms |
51012 KB |
Output is correct |
9 |
Correct |
86 ms |
51072 KB |
Output is correct |
10 |
Correct |
77 ms |
51184 KB |
Output is correct |
11 |
Correct |
236 ms |
56708 KB |
Output is correct |
12 |
Correct |
211 ms |
54500 KB |
Output is correct |
13 |
Correct |
187 ms |
53300 KB |
Output is correct |
14 |
Correct |
201 ms |
53376 KB |
Output is correct |
15 |
Correct |
168 ms |
51148 KB |
Output is correct |
16 |
Correct |
177 ms |
51176 KB |
Output is correct |
17 |
Correct |
161 ms |
51276 KB |
Output is correct |
18 |
Correct |
223 ms |
55804 KB |
Output is correct |
19 |
Correct |
19 ms |
37800 KB |
Output is correct |
20 |
Correct |
21 ms |
37852 KB |
Output is correct |
21 |
Correct |
19 ms |
37844 KB |
Output is correct |
22 |
Correct |
19 ms |
37852 KB |
Output is correct |
23 |
Correct |
22 ms |
37884 KB |
Output is correct |
24 |
Correct |
19 ms |
37904 KB |
Output is correct |
25 |
Correct |
22 ms |
37880 KB |
Output is correct |
26 |
Correct |
24 ms |
37888 KB |
Output is correct |
27 |
Correct |
19 ms |
37864 KB |
Output is correct |
28 |
Correct |
22 ms |
37844 KB |
Output is correct |
29 |
Correct |
19 ms |
37868 KB |
Output is correct |
30 |
Correct |
18 ms |
37844 KB |
Output is correct |
31 |
Correct |
20 ms |
37844 KB |
Output is correct |
32 |
Correct |
18 ms |
37844 KB |
Output is correct |
33 |
Correct |
18 ms |
37796 KB |
Output is correct |
34 |
Correct |
20 ms |
37844 KB |
Output is correct |
35 |
Correct |
17 ms |
37832 KB |
Output is correct |
36 |
Correct |
17 ms |
37820 KB |
Output is correct |
37 |
Correct |
21 ms |
38016 KB |
Output is correct |
38 |
Correct |
45 ms |
42708 KB |
Output is correct |
39 |
Correct |
51 ms |
42752 KB |
Output is correct |
40 |
Correct |
47 ms |
42780 KB |
Output is correct |
41 |
Correct |
46 ms |
42820 KB |
Output is correct |
42 |
Correct |
62 ms |
43916 KB |
Output is correct |
43 |
Correct |
61 ms |
44796 KB |
Output is correct |
44 |
Correct |
58 ms |
44816 KB |
Output is correct |
45 |
Correct |
64 ms |
44876 KB |
Output is correct |
46 |
Correct |
60 ms |
43928 KB |
Output is correct |
47 |
Correct |
56 ms |
44720 KB |
Output is correct |
48 |
Correct |
43 ms |
44840 KB |
Output is correct |
49 |
Correct |
45 ms |
44872 KB |
Output is correct |
50 |
Correct |
68 ms |
45100 KB |
Output is correct |
51 |
Correct |
87 ms |
45076 KB |
Output is correct |
52 |
Correct |
61 ms |
44400 KB |
Output is correct |
53 |
Correct |
72 ms |
45100 KB |
Output is correct |
54 |
Correct |
74 ms |
45040 KB |
Output is correct |
55 |
Correct |
62 ms |
44400 KB |
Output is correct |
56 |
Correct |
1428 ms |
166012 KB |
Output is correct |
57 |
Correct |
1377 ms |
165476 KB |
Output is correct |
58 |
Correct |
1633 ms |
205768 KB |
Output is correct |
59 |
Correct |
1695 ms |
206092 KB |
Output is correct |
60 |
Correct |
1521 ms |
181200 KB |
Output is correct |
61 |
Correct |
1601 ms |
205752 KB |
Output is correct |
62 |
Correct |
1406 ms |
168508 KB |
Output is correct |
63 |
Correct |
1535 ms |
222224 KB |
Output is correct |
64 |
Correct |
1447 ms |
222196 KB |
Output is correct |
65 |
Correct |
235 ms |
63936 KB |
Output is correct |
66 |
Correct |
1481 ms |
181192 KB |
Output is correct |
67 |
Correct |
2353 ms |
221320 KB |
Output is correct |
68 |
Correct |
1875 ms |
222680 KB |
Output is correct |
69 |
Correct |
1489 ms |
220600 KB |
Output is correct |
70 |
Correct |
2551 ms |
221808 KB |
Output is correct |
71 |
Correct |
2013 ms |
222672 KB |
Output is correct |
72 |
Correct |
1526 ms |
222732 KB |
Output is correct |
73 |
Correct |
2707 ms |
221672 KB |
Output is correct |
74 |
Correct |
1253 ms |
222704 KB |
Output is correct |
75 |
Correct |
1076 ms |
222820 KB |
Output is correct |
76 |
Execution timed out |
3092 ms |
216628 KB |
Time limit exceeded |
77 |
Halted |
0 ms |
0 KB |
- |