| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 467807 |
2021-08-24T16:36:39 Z |
Autron |
Robot (JOI21_ho_t4) |
C++14 |
|
1361 ms |
131648 KB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
int n, m;
struct edge{
int to, c, p;
};
struct nod{
unordered_map<int, vector<edge>> out;
int dp;
bool used;
unordered_map<int, int> dpc;
unordered_map<int, bool> usedc;
unordered_map<int, int> sum;
};
struct elem{
int cost, x, c;
bool operator<(const elem &ot) const{
return cost>ot.cost;
}
};
vector<nod> g;
int32_t main(){
cin>>n>>m;
g.resize(n+1);
for(int i=1;i<=m;++i){
int a, b, c, p;
cin>>a>>b>>c>>p;
g[a].out[c].push_back({b, c, p});
g[b].out[c].push_back({a, c, p});
g[a].sum[c]+=p;
g[b].sum[c]+=p;
}
priority_queue<elem> pq;
for(int i=1;i<=n;++i) g[i].dp=1e18;
g[1].dp=0;
pq.push({0, 1, 0});
while(!pq.empty()){
elem x=pq.top();
pq.pop();
if(x.c){
if(g[x.x].usedc.count(x.c)) continue;
g[x.x].usedc[x.c]=1;
for(auto it:g[x.x].out[x.c]){
int cost=g[x.x].sum[x.c]-it.p+x.cost;
if(cost<g[it.to].dp){
g[it.to].dp=cost;
pq.push({g[it.to].dp, it.to, 0});
}
}
}
else{
if(g[x.x].used) continue;
g[x.x].used=1;
for(auto out:g[x.x].out){
for(auto it:out.second){
int cost=g[x.x].sum[it.c]-it.p+x.cost;
if(cost<g[it.to].dp){
g[it.to].dp=cost;
pq.push({g[it.to].dp, it.to, 0});
}
cost=it.p+x.cost;
if(cost<g[it.to].dp){
g[it.to].dp=cost;
pq.push({g[it.to].dp, it.to, 0});
}
cost=x.cost;
if((!g[it.to].dpc.count(it.c))||(cost<g[it.to].dpc[it.c])){
g[it.to].dpc[it.c]=cost;
pq.push({g[it.to].dpc[it.c], it.to, it.c});
}
}
}
}
}
int sol=g[n].dp;
if(sol==1e18) sol=-1;
cout<<sol<<"\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
2 ms |
460 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
6 ms |
1484 KB |
Output is correct |
| 10 |
Correct |
5 ms |
1484 KB |
Output is correct |
| 11 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 12 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 13 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 14 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 15 |
Correct |
3 ms |
1100 KB |
Output is correct |
| 16 |
Correct |
5 ms |
1196 KB |
Output is correct |
| 17 |
Correct |
4 ms |
1008 KB |
Output is correct |
| 18 |
Correct |
2 ms |
716 KB |
Output is correct |
| 19 |
Correct |
4 ms |
588 KB |
Output is correct |
| 20 |
Correct |
4 ms |
1228 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
356 ms |
32852 KB |
Output is correct |
| 2 |
Correct |
157 ms |
18512 KB |
Output is correct |
| 3 |
Correct |
517 ms |
26572 KB |
Output is correct |
| 4 |
Correct |
213 ms |
27296 KB |
Output is correct |
| 5 |
Correct |
1262 ms |
125844 KB |
Output is correct |
| 6 |
Correct |
989 ms |
115116 KB |
Output is correct |
| 7 |
Correct |
722 ms |
102100 KB |
Output is correct |
| 8 |
Correct |
805 ms |
95284 KB |
Output is correct |
| 9 |
Correct |
824 ms |
95320 KB |
Output is correct |
| 10 |
Correct |
531 ms |
58228 KB |
Output is correct |
| 11 |
Correct |
250 ms |
48964 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
1 ms |
332 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
2 ms |
460 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
6 ms |
1484 KB |
Output is correct |
| 10 |
Correct |
5 ms |
1484 KB |
Output is correct |
| 11 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 12 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 13 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 14 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 15 |
Correct |
3 ms |
1100 KB |
Output is correct |
| 16 |
Correct |
5 ms |
1196 KB |
Output is correct |
| 17 |
Correct |
4 ms |
1008 KB |
Output is correct |
| 18 |
Correct |
2 ms |
716 KB |
Output is correct |
| 19 |
Correct |
4 ms |
588 KB |
Output is correct |
| 20 |
Correct |
4 ms |
1228 KB |
Output is correct |
| 21 |
Correct |
356 ms |
32852 KB |
Output is correct |
| 22 |
Correct |
157 ms |
18512 KB |
Output is correct |
| 23 |
Correct |
517 ms |
26572 KB |
Output is correct |
| 24 |
Correct |
213 ms |
27296 KB |
Output is correct |
| 25 |
Correct |
1262 ms |
125844 KB |
Output is correct |
| 26 |
Correct |
989 ms |
115116 KB |
Output is correct |
| 27 |
Correct |
722 ms |
102100 KB |
Output is correct |
| 28 |
Correct |
805 ms |
95284 KB |
Output is correct |
| 29 |
Correct |
824 ms |
95320 KB |
Output is correct |
| 30 |
Correct |
531 ms |
58228 KB |
Output is correct |
| 31 |
Correct |
250 ms |
48964 KB |
Output is correct |
| 32 |
Correct |
346 ms |
18700 KB |
Output is correct |
| 33 |
Correct |
388 ms |
29912 KB |
Output is correct |
| 34 |
Correct |
707 ms |
59556 KB |
Output is correct |
| 35 |
Correct |
584 ms |
52748 KB |
Output is correct |
| 36 |
Correct |
556 ms |
94816 KB |
Output is correct |
| 37 |
Correct |
616 ms |
98156 KB |
Output is correct |
| 38 |
Correct |
671 ms |
105700 KB |
Output is correct |
| 39 |
Correct |
398 ms |
27172 KB |
Output is correct |
| 40 |
Correct |
883 ms |
100552 KB |
Output is correct |
| 41 |
Correct |
875 ms |
100864 KB |
Output is correct |
| 42 |
Correct |
849 ms |
96540 KB |
Output is correct |
| 43 |
Correct |
377 ms |
32504 KB |
Output is correct |
| 44 |
Correct |
808 ms |
34892 KB |
Output is correct |
| 45 |
Correct |
590 ms |
95628 KB |
Output is correct |
| 46 |
Correct |
539 ms |
94804 KB |
Output is correct |
| 47 |
Correct |
635 ms |
98368 KB |
Output is correct |
| 48 |
Correct |
1361 ms |
131648 KB |
Output is correct |
