#include <iostream>
#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <set>
#include <functional>
//std::vector< std::vector< std::pair<int, int> > > g(500010);
int ans[1000010] = { 0 }, start[1000010] = { 0 };
std::pair<int, std::pair<int, int> > edge[10000010];
int n, m, q;
void bfs()
{
std::set<std::pair<int, int> , std::greater<std::pair<int, int> > > set;
set.insert(std::make_pair(2e8, 0));
bool visited[1000010] = { 0 };
int curNode, curVal, nextVal, nextNode;
while (set.empty() == false)
{
std::pair<int, int> top = *set.begin();
curNode = top.second;
curVal = top.first;
set.erase(set.begin());
// std::cout << curNode << " " << curVal << "\n";
if (visited[curNode])
continue;
else
visited[curNode] = 1;
for (int i = start[curNode]; i < m; ++i)
{
if (edge[i].first != curNode)
break;
nextVal = edge[i].second.first;
nextNode = edge[i].second.second;
if (std::min(nextVal, curVal) > ans[nextNode])
{
ans[nextNode] = std::max(ans[nextNode], std::min(nextVal, curVal));
set.insert(std::make_pair(std::min(nextVal, curVal), nextNode));
}
}
}
}
int main()
{
std::ios_base::sync_with_stdio(0);
std::cin.tie(0);
// scanf("%d%d%d", &n, &m, &q);
std::cin >> n >> m >> q;
int x, y, quality;
for (int i = 0; i < m; ++i)
{
// scanf("%d%d%d", &x, &y, &quality);
std::cin >> x >> y >> quality;
--x,
--y;
edge[i] = std::make_pair(x, std::make_pair(quality, y));
edge[m + i] = std::make_pair(y, std::make_pair(quality, x));
}
m *= 2;
std::sort(edge, edge + m);
int node[1000010];
for (int i = 0; i < q; ++i)
{
// scanf("%d", &node[i]);
std::cin >> node[i];
}
for (int i = 0; i < n; ++i)
{
start[i] = std::lower_bound(edge, edge + m, std::make_pair(i, std::make_pair(0, 0))) - edge;
}
bfs();
for (int i = 0; i < q; ++i)
{
// printf("%d\n", ans[node[i] - 1]);
std::cout << ans[node[i] - 1] << "\n";
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
4 ms |
1400 KB |
Output is correct |
2 |
Correct |
3 ms |
1496 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
1696 KB |
Output is correct |
2 |
Correct |
4 ms |
1696 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
54 ms |
3808 KB |
Output is correct |
2 |
Correct |
48 ms |
3808 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
3553 ms |
113036 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |