# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
391047 |
2021-04-17T16:24:44 Z |
Victor |
Toll (BOI17_toll) |
C++17 |
|
3000 ms |
6724 KB |
#include <bits/stdc++.h>
using namespace std;
#define rep(i, a, b) for (int i = a; i < (b); ++i)
#define per(i, a, b) for (int i = b - 1; i >= (a); --i)
#define trav(a, x) for (auto &a : x)
#define all(x) x.begin(), x.end()
#define sz(x) x.size()
#define pb push_back
#define umap unordered_map
#define uset unordered_set
typedef pair<int, int> ii;
typedef pair<int, ii> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<vi> vvi;
typedef long long ll;
const int INF = 1000000007;
vii graph[50001];
int n, rgt[50001], dist[50001];
void solve(int u, int d) {
if (n <= u) return;
dist[u] = d;
if (graph[u].empty()) {
rgt[u] = u;
solve(u + 1, 0);
} else {
int v, w;
tie(v, w) = graph[u][0];
solve(v,d+w);
rgt[u] = rgt[v];
}
}
int main() {
cin.tie(0)->sync_with_stdio(0);
cin.exceptions(cin.failbit);
int k, m, o;
cin >> k >> n >> m >> o;
rep(i, 0, m) {
int u, v, w;
cin >> u >> v >> w;
graph[u].emplace_back(v, w);
}
if (k == 1) {
solve(0, 0);
while (o--) {
int a, b;
cin >> a >> b;
if (b < a || rgt[a] < b)
cout << -1 << endl;
else
cout << dist[b] - dist[a] << endl;
}
} else {
int preva = -1;
set<ii> pq;
rep(i, 0, o) {
int a, b;
cin >> a >> b;
if (preva != a) {
fill(dist, dist + n, INF);
dist[a] = 0;
rep(i, 0, n) pq.insert({dist[i], i});
while (!pq.empty()) {
int d, u;
tie(d, u) = *pq.begin();
pq.erase(pq.begin());
trav(edge, graph[u]) {
int v, w;
tie(v, w) = edge;
if (d + w >= dist[v]) continue;
pq.erase({dist[v], v});
dist[v] = d + w;
pq.emplace(d + w, v);
}
}
}
preva = a;
if (dist[b] == INF)
cout << "-1\n";
else
cout << dist[b] << endl;
}
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
40 ms |
5068 KB |
Output is correct |
2 |
Correct |
1 ms |
1484 KB |
Output is correct |
3 |
Correct |
1 ms |
1492 KB |
Output is correct |
4 |
Correct |
1 ms |
1484 KB |
Output is correct |
5 |
Correct |
3 ms |
1516 KB |
Output is correct |
6 |
Correct |
3 ms |
1484 KB |
Output is correct |
7 |
Correct |
3 ms |
1512 KB |
Output is correct |
8 |
Correct |
41 ms |
5836 KB |
Output is correct |
9 |
Correct |
41 ms |
5788 KB |
Output is correct |
10 |
Correct |
19 ms |
2124 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
63 ms |
5604 KB |
Output is correct |
2 |
Correct |
1 ms |
1484 KB |
Output is correct |
3 |
Correct |
1 ms |
1484 KB |
Output is correct |
4 |
Correct |
1 ms |
1484 KB |
Output is correct |
5 |
Correct |
1 ms |
1484 KB |
Output is correct |
6 |
Correct |
1 ms |
1484 KB |
Output is correct |
7 |
Correct |
19 ms |
1588 KB |
Output is correct |
8 |
Correct |
21 ms |
1612 KB |
Output is correct |
9 |
Correct |
40 ms |
4912 KB |
Output is correct |
10 |
Correct |
99 ms |
6460 KB |
Output is correct |
11 |
Correct |
85 ms |
5680 KB |
Output is correct |
12 |
Correct |
45 ms |
5504 KB |
Output is correct |
13 |
Correct |
82 ms |
5508 KB |
Output is correct |
14 |
Correct |
57 ms |
4556 KB |
Output is correct |
15 |
Correct |
54 ms |
4228 KB |
Output is correct |
16 |
Correct |
66 ms |
4292 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1484 KB |
Output is correct |
2 |
Correct |
1 ms |
1484 KB |
Output is correct |
3 |
Correct |
1 ms |
1484 KB |
Output is correct |
4 |
Correct |
1 ms |
1484 KB |
Output is correct |
5 |
Correct |
1 ms |
1484 KB |
Output is correct |
6 |
Correct |
2 ms |
1484 KB |
Output is correct |
7 |
Correct |
26 ms |
1484 KB |
Output is correct |
8 |
Correct |
40 ms |
1612 KB |
Output is correct |
9 |
Correct |
34 ms |
1484 KB |
Output is correct |
10 |
Correct |
23 ms |
4932 KB |
Output is correct |
11 |
Correct |
1618 ms |
5500 KB |
Output is correct |
12 |
Correct |
1875 ms |
6468 KB |
Output is correct |
13 |
Correct |
2017 ms |
6724 KB |
Output is correct |
14 |
Correct |
1819 ms |
6016 KB |
Output is correct |
15 |
Correct |
1115 ms |
4304 KB |
Output is correct |
16 |
Correct |
1111 ms |
4228 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1484 KB |
Output is correct |
2 |
Correct |
1 ms |
1484 KB |
Output is correct |
3 |
Correct |
1 ms |
1484 KB |
Output is correct |
4 |
Correct |
1 ms |
1484 KB |
Output is correct |
5 |
Correct |
1 ms |
1484 KB |
Output is correct |
6 |
Correct |
2 ms |
1484 KB |
Output is correct |
7 |
Correct |
26 ms |
1484 KB |
Output is correct |
8 |
Correct |
40 ms |
1612 KB |
Output is correct |
9 |
Correct |
34 ms |
1484 KB |
Output is correct |
10 |
Correct |
23 ms |
4932 KB |
Output is correct |
11 |
Correct |
1618 ms |
5500 KB |
Output is correct |
12 |
Correct |
1875 ms |
6468 KB |
Output is correct |
13 |
Correct |
2017 ms |
6724 KB |
Output is correct |
14 |
Correct |
1819 ms |
6016 KB |
Output is correct |
15 |
Correct |
1115 ms |
4304 KB |
Output is correct |
16 |
Correct |
1111 ms |
4228 KB |
Output is correct |
17 |
Execution timed out |
3057 ms |
5512 KB |
Time limit exceeded |
18 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
40 ms |
5068 KB |
Output is correct |
2 |
Correct |
1 ms |
1484 KB |
Output is correct |
3 |
Correct |
1 ms |
1492 KB |
Output is correct |
4 |
Correct |
1 ms |
1484 KB |
Output is correct |
5 |
Correct |
3 ms |
1516 KB |
Output is correct |
6 |
Correct |
3 ms |
1484 KB |
Output is correct |
7 |
Correct |
3 ms |
1512 KB |
Output is correct |
8 |
Correct |
41 ms |
5836 KB |
Output is correct |
9 |
Correct |
41 ms |
5788 KB |
Output is correct |
10 |
Correct |
19 ms |
2124 KB |
Output is correct |
11 |
Correct |
63 ms |
5604 KB |
Output is correct |
12 |
Correct |
1 ms |
1484 KB |
Output is correct |
13 |
Correct |
1 ms |
1484 KB |
Output is correct |
14 |
Correct |
1 ms |
1484 KB |
Output is correct |
15 |
Correct |
1 ms |
1484 KB |
Output is correct |
16 |
Correct |
1 ms |
1484 KB |
Output is correct |
17 |
Correct |
19 ms |
1588 KB |
Output is correct |
18 |
Correct |
21 ms |
1612 KB |
Output is correct |
19 |
Correct |
40 ms |
4912 KB |
Output is correct |
20 |
Correct |
99 ms |
6460 KB |
Output is correct |
21 |
Correct |
85 ms |
5680 KB |
Output is correct |
22 |
Correct |
45 ms |
5504 KB |
Output is correct |
23 |
Correct |
82 ms |
5508 KB |
Output is correct |
24 |
Correct |
57 ms |
4556 KB |
Output is correct |
25 |
Correct |
54 ms |
4228 KB |
Output is correct |
26 |
Correct |
66 ms |
4292 KB |
Output is correct |
27 |
Correct |
1 ms |
1484 KB |
Output is correct |
28 |
Correct |
1 ms |
1484 KB |
Output is correct |
29 |
Correct |
1 ms |
1484 KB |
Output is correct |
30 |
Correct |
1 ms |
1484 KB |
Output is correct |
31 |
Correct |
1 ms |
1484 KB |
Output is correct |
32 |
Correct |
2 ms |
1484 KB |
Output is correct |
33 |
Correct |
26 ms |
1484 KB |
Output is correct |
34 |
Correct |
40 ms |
1612 KB |
Output is correct |
35 |
Correct |
34 ms |
1484 KB |
Output is correct |
36 |
Correct |
23 ms |
4932 KB |
Output is correct |
37 |
Correct |
1618 ms |
5500 KB |
Output is correct |
38 |
Correct |
1875 ms |
6468 KB |
Output is correct |
39 |
Correct |
2017 ms |
6724 KB |
Output is correct |
40 |
Correct |
1819 ms |
6016 KB |
Output is correct |
41 |
Correct |
1115 ms |
4304 KB |
Output is correct |
42 |
Correct |
1111 ms |
4228 KB |
Output is correct |
43 |
Execution timed out |
3057 ms |
5512 KB |
Time limit exceeded |
44 |
Halted |
0 ms |
0 KB |
- |