# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
372321 |
2021-02-27T16:03:16 Z |
errorgorn |
Robot (JOI21_ho_t4) |
C++17 |
|
1618 ms |
121108 KB |
//雪花飄飄北風嘯嘯
//天地一片蒼茫
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#define ll long long
#define ii pair<ll,ll>
#define iii tuple<ll,ll,ll>
#define fi first
#define se second
#define endl '\n'
#define debug(x) cout << #x << " is " << x << endl
#define pub push_back
#define pob pop_back
#define puf push_front
#define pof pop_front
#define lb lower_bound
#define up upper_bound
#define rep(x,start,end) for(auto x=(start)-((start)>(end));x!=(end)-((start)>(end));((start)<(end)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()
#define indexed_set tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>
//change less to less_equal for non distinct pbds, but erase will bug
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
struct edge{
ll v,c,p;
};
int n,m;
vector<edge> al[200005];
map<int,vector<edge> > al_c[200005];
map<int,ll> mc[200005];
map<int,ll> w[200005];
priority_queue<iii,vector<iii>,greater<iii> > pq;
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin.exceptions(ios::badbit | ios::failbit);
cin>>n>>m;
int a,b,c,d;
rep(x,0,m){
cin>>a>>b>>c>>d;
al[a].pub({b,c,d});
al[b].pub({a,c,d});
al_c[a][c].pub({b,c,d});
al_c[b][c].pub({a,c,d});
mc[a][c]+=d;
mc[b][c]+=d;
w[a][c]=1e18;
w[b][c]=1e18;
}
rep(x,1,n+1) w[x][-1]=1e18;
w[1][-1]=0;
pq.push({w[1][-1],1,-1});
ll node,weight,col;
while (!pq.empty()){
tie(weight,node,col)=pq.top(),pq.pop();
if (w[node][col]!=weight) continue;
//cout<<weight<<" "<<node<<" "<<col<<endl;
if (al_c[node].count(col)) for (auto &it:al_c[node][col]){
ll nw=weight+mc[node][it.c]-it.p;
if (w[it.v][-1]>nw){
w[it.v][-1]=nw;
pq.push({nw,it.v,-1});
}
}
if (col==-1) for (auto &it:al[node]){
ll nw=weight;
if (w[it.v][it.c]>nw){
w[it.v][it.c]=nw;
pq.push({nw,it.v,it.c});
}
nw=weight+min(mc[node][it.c]-it.p,it.p);
if (w[it.v][-1]>nw){
w[it.v][-1]=nw;
pq.push({nw,it.v,-1});
}
}
}
if (w[n][-1]==1e18) cout<<"-1"<<endl;
else cout<<w[n][-1]<<endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
20 ms |
33260 KB |
Output is correct |
2 |
Correct |
21 ms |
33276 KB |
Output is correct |
3 |
Correct |
22 ms |
33260 KB |
Output is correct |
4 |
Correct |
20 ms |
33260 KB |
Output is correct |
5 |
Correct |
21 ms |
33260 KB |
Output is correct |
6 |
Correct |
22 ms |
33260 KB |
Output is correct |
7 |
Correct |
25 ms |
33516 KB |
Output is correct |
8 |
Correct |
21 ms |
33388 KB |
Output is correct |
9 |
Correct |
30 ms |
34056 KB |
Output is correct |
10 |
Correct |
25 ms |
34028 KB |
Output is correct |
11 |
Correct |
24 ms |
33772 KB |
Output is correct |
12 |
Correct |
24 ms |
33920 KB |
Output is correct |
13 |
Correct |
26 ms |
33900 KB |
Output is correct |
14 |
Correct |
25 ms |
33900 KB |
Output is correct |
15 |
Correct |
22 ms |
33644 KB |
Output is correct |
16 |
Correct |
24 ms |
33772 KB |
Output is correct |
17 |
Correct |
24 ms |
33772 KB |
Output is correct |
18 |
Correct |
24 ms |
33516 KB |
Output is correct |
19 |
Correct |
28 ms |
33792 KB |
Output is correct |
20 |
Correct |
26 ms |
33644 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
346 ms |
61028 KB |
Output is correct |
2 |
Correct |
167 ms |
46812 KB |
Output is correct |
3 |
Correct |
387 ms |
62716 KB |
Output is correct |
4 |
Correct |
228 ms |
51900 KB |
Output is correct |
5 |
Correct |
1576 ms |
121052 KB |
Output is correct |
6 |
Correct |
1382 ms |
110504 KB |
Output is correct |
7 |
Correct |
576 ms |
91244 KB |
Output is correct |
8 |
Correct |
747 ms |
88428 KB |
Output is correct |
9 |
Correct |
775 ms |
88428 KB |
Output is correct |
10 |
Correct |
555 ms |
79844 KB |
Output is correct |
11 |
Correct |
278 ms |
67052 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
20 ms |
33260 KB |
Output is correct |
2 |
Correct |
21 ms |
33276 KB |
Output is correct |
3 |
Correct |
22 ms |
33260 KB |
Output is correct |
4 |
Correct |
20 ms |
33260 KB |
Output is correct |
5 |
Correct |
21 ms |
33260 KB |
Output is correct |
6 |
Correct |
22 ms |
33260 KB |
Output is correct |
7 |
Correct |
25 ms |
33516 KB |
Output is correct |
8 |
Correct |
21 ms |
33388 KB |
Output is correct |
9 |
Correct |
30 ms |
34056 KB |
Output is correct |
10 |
Correct |
25 ms |
34028 KB |
Output is correct |
11 |
Correct |
24 ms |
33772 KB |
Output is correct |
12 |
Correct |
24 ms |
33920 KB |
Output is correct |
13 |
Correct |
26 ms |
33900 KB |
Output is correct |
14 |
Correct |
25 ms |
33900 KB |
Output is correct |
15 |
Correct |
22 ms |
33644 KB |
Output is correct |
16 |
Correct |
24 ms |
33772 KB |
Output is correct |
17 |
Correct |
24 ms |
33772 KB |
Output is correct |
18 |
Correct |
24 ms |
33516 KB |
Output is correct |
19 |
Correct |
28 ms |
33792 KB |
Output is correct |
20 |
Correct |
26 ms |
33644 KB |
Output is correct |
21 |
Correct |
346 ms |
61028 KB |
Output is correct |
22 |
Correct |
167 ms |
46812 KB |
Output is correct |
23 |
Correct |
387 ms |
62716 KB |
Output is correct |
24 |
Correct |
228 ms |
51900 KB |
Output is correct |
25 |
Correct |
1576 ms |
121052 KB |
Output is correct |
26 |
Correct |
1382 ms |
110504 KB |
Output is correct |
27 |
Correct |
576 ms |
91244 KB |
Output is correct |
28 |
Correct |
747 ms |
88428 KB |
Output is correct |
29 |
Correct |
775 ms |
88428 KB |
Output is correct |
30 |
Correct |
555 ms |
79844 KB |
Output is correct |
31 |
Correct |
278 ms |
67052 KB |
Output is correct |
32 |
Correct |
230 ms |
58856 KB |
Output is correct |
33 |
Correct |
322 ms |
58212 KB |
Output is correct |
34 |
Correct |
679 ms |
80992 KB |
Output is correct |
35 |
Correct |
513 ms |
71556 KB |
Output is correct |
36 |
Correct |
512 ms |
78540 KB |
Output is correct |
37 |
Correct |
628 ms |
86720 KB |
Output is correct |
38 |
Correct |
629 ms |
97308 KB |
Output is correct |
39 |
Correct |
281 ms |
65640 KB |
Output is correct |
40 |
Correct |
779 ms |
88428 KB |
Output is correct |
41 |
Correct |
824 ms |
88428 KB |
Output is correct |
42 |
Correct |
818 ms |
98924 KB |
Output is correct |
43 |
Correct |
376 ms |
64876 KB |
Output is correct |
44 |
Correct |
817 ms |
78696 KB |
Output is correct |
45 |
Correct |
570 ms |
81132 KB |
Output is correct |
46 |
Correct |
509 ms |
80492 KB |
Output is correct |
47 |
Correct |
536 ms |
82816 KB |
Output is correct |
48 |
Correct |
1618 ms |
121108 KB |
Output is correct |