#include "swap.h"
#include <bits/stdc++.h>
#include <vector>
using namespace std;
int n, m, i, j, sz[100001], p[100001], d[100001], mx[100001], szm[100001];
vector<pair<int, int>> g[100001];
vector<pair<int, pair<int, int>>> gg;
int get(int x) {
return x == p[x] ? x : p[x] = get(p[x]);
}
void merge(int xx, int yy) {
d[xx]++, d[yy]++;
int x = get(xx), y = get(yy);
mx[x] = max({mx[x], d[x], d[xx]});
mx[y] = max({mx[y], d[y], d[yy]});
szm[x]++;
if (x == y) return;
if (sz[x] < sz[y]) swap(x, y);
p[y] = x;
sz[x] += sz[y];
szm[x] += szm[y];
}
void init(int N, int M,
std::vector<int> U, std::vector<int> V, std::vector<int> W) {
n = N, m = M;
for (int i = 0; i < M; i++) {
g[U[i]].push_back({V[i], W[i]});
g[V[i]].push_back({U[i], W[i]});
gg.push_back({W[i], {U[i], V[i]}});
}
sort(gg.begin(), gg.end());
}
bool check(int md, int x, int y) {
for (int i = 0; i <= n; i++) sz[i] = 1, p[i] = i, d[i] = mx[i] = szm[i] = 0;
for (int i = 0; i <= md; i++) merge(gg[i].second.first, gg[i].second.second);
if (get(x) != get(y)) return 0;
if (mx[get(x)] < 1) return 0;
if (mx[get(x)] <= 2 && szm[get(x)] < sz[get(x)]) return 0;
return 1;
}
int getMinimumFuelCapacity(int X, int Y) {
int l = 0, r = m - 1, md;
while (l <= r) {
md = (l + r) / 2;
if (check(md, X, Y)) r = md - 1;
else l = md + 1;
}
if (!check(l, X, Y)) return -1;
return gg[l].first;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
4696 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
4696 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
4696 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
4696 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
4696 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
4696 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |