| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 937921 |
2024-03-04T16:45:27 Z |
zwezdinv |
Robot (JOI21_ho_t4) |
C++17 |
|
1197 ms |
94332 KB |
#include <bits/stdc++.h>
int main() {
std::cin.tie(nullptr)->sync_with_stdio(false);
int n, m;
std::cin >> n >> m;
std::vector<std::map<int, std::vector<std::pair<int, long long>>>> g(n);
std::vector<std::map<int, long long>> mp(n);
for (int i = 0; i < m; ++i) {
int u, v, c;
long long p;
std::cin >> u >> v >> c >> p;
--u, --v;
mp[u][c] += p;
mp[v][c] += p;
g[u][c].emplace_back(v, p);
g[v][c].emplace_back(u, p);
}
std::vector<std::map<int, long long>> dist(n);
for (int i = 0; i < n; ++i) {
dist[i][0] = 1e18;
for (auto [j, val] : mp[i]) dist[i][j] = 1e18;
}
dist[0][0] = 0;
std::set<std::pair<long long, std::pair<int, int>>> st;
st.emplace(0, std::make_pair(0, 0));
while (st.size()) {
auto [u, c] = st.begin()->second;
st.erase(st.begin());
if (c == 0) {
for (auto& [col, v] : g[u]) {
for (auto& [to, cost] : v) {
{
long long w = dist[u][0] + std::min(cost, mp[u][col] - cost);
if (dist[to][0] > w) {
st.erase({dist[to][0], {to, 0}});
dist[to][0] = w;
st.insert({dist[to][0], {to, 0}});
}
}
{
long long w = dist[u][0];
if (dist[to][col] > w) {
st.erase({dist[to][col], {to, col}});
dist[to][col] = w;
st.insert({dist[to][col], {to, col}});
}
}
}
}
} else {
for (auto& [to, cost] : g[u][c]) {
long long w = dist[u][c] + mp[u][c] - cost;
if (dist[to][0] > w) {
st.erase({dist[to][0], {to, 0}});
dist[to][0] = w;
st.insert({dist[to][0], {to, 0}});
}
}
}
}
long long ans = dist[n - 1][0];
if (ans == 1e18) std::cout << -1;
else std::cout << ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
604 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
4 ms |
1112 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1116 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1116 KB |
Output is correct |
| 12 |
Correct |
2 ms |
860 KB |
Output is correct |
| 13 |
Correct |
2 ms |
1068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
1116 KB |
Output is correct |
| 15 |
Correct |
2 ms |
864 KB |
Output is correct |
| 16 |
Correct |
2 ms |
860 KB |
Output is correct |
| 17 |
Correct |
2 ms |
980 KB |
Output is correct |
| 18 |
Correct |
1 ms |
860 KB |
Output is correct |
| 19 |
Correct |
2 ms |
604 KB |
Output is correct |
| 20 |
Correct |
2 ms |
860 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
166 ms |
25940 KB |
Output is correct |
| 2 |
Correct |
54 ms |
13976 KB |
Output is correct |
| 3 |
Correct |
138 ms |
20480 KB |
Output is correct |
| 4 |
Correct |
86 ms |
19028 KB |
Output is correct |
| 5 |
Correct |
1022 ms |
91424 KB |
Output is correct |
| 6 |
Correct |
799 ms |
80572 KB |
Output is correct |
| 7 |
Correct |
358 ms |
66848 KB |
Output is correct |
| 8 |
Correct |
335 ms |
56400 KB |
Output is correct |
| 9 |
Correct |
348 ms |
56760 KB |
Output is correct |
| 10 |
Correct |
272 ms |
47696 KB |
Output is correct |
| 11 |
Correct |
109 ms |
39988 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
1 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
604 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
4 ms |
1112 KB |
Output is correct |
| 10 |
Correct |
3 ms |
1116 KB |
Output is correct |
| 11 |
Correct |
2 ms |
1116 KB |
Output is correct |
| 12 |
Correct |
2 ms |
860 KB |
Output is correct |
| 13 |
Correct |
2 ms |
1068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
1116 KB |
Output is correct |
| 15 |
Correct |
2 ms |
864 KB |
Output is correct |
| 16 |
Correct |
2 ms |
860 KB |
Output is correct |
| 17 |
Correct |
2 ms |
980 KB |
Output is correct |
| 18 |
Correct |
1 ms |
860 KB |
Output is correct |
| 19 |
Correct |
2 ms |
604 KB |
Output is correct |
| 20 |
Correct |
2 ms |
860 KB |
Output is correct |
| 21 |
Correct |
166 ms |
25940 KB |
Output is correct |
| 22 |
Correct |
54 ms |
13976 KB |
Output is correct |
| 23 |
Correct |
138 ms |
20480 KB |
Output is correct |
| 24 |
Correct |
86 ms |
19028 KB |
Output is correct |
| 25 |
Correct |
1022 ms |
91424 KB |
Output is correct |
| 26 |
Correct |
799 ms |
80572 KB |
Output is correct |
| 27 |
Correct |
358 ms |
66848 KB |
Output is correct |
| 28 |
Correct |
335 ms |
56400 KB |
Output is correct |
| 29 |
Correct |
348 ms |
56760 KB |
Output is correct |
| 30 |
Correct |
272 ms |
47696 KB |
Output is correct |
| 31 |
Correct |
109 ms |
39988 KB |
Output is correct |
| 32 |
Correct |
106 ms |
14036 KB |
Output is correct |
| 33 |
Correct |
150 ms |
18768 KB |
Output is correct |
| 34 |
Correct |
355 ms |
45140 KB |
Output is correct |
| 35 |
Correct |
307 ms |
36420 KB |
Output is correct |
| 36 |
Correct |
328 ms |
54588 KB |
Output is correct |
| 37 |
Correct |
388 ms |
58816 KB |
Output is correct |
| 38 |
Correct |
425 ms |
66664 KB |
Output is correct |
| 39 |
Correct |
98 ms |
18256 KB |
Output is correct |
| 40 |
Correct |
352 ms |
57556 KB |
Output is correct |
| 41 |
Correct |
410 ms |
57940 KB |
Output is correct |
| 42 |
Correct |
488 ms |
68564 KB |
Output is correct |
| 43 |
Correct |
164 ms |
29512 KB |
Output is correct |
| 44 |
Correct |
300 ms |
30548 KB |
Output is correct |
| 45 |
Correct |
291 ms |
53072 KB |
Output is correct |
| 46 |
Correct |
239 ms |
53328 KB |
Output is correct |
| 47 |
Correct |
334 ms |
58596 KB |
Output is correct |
| 48 |
Correct |
1197 ms |
94332 KB |
Output is correct |
