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#include "leetcode.h"
class Solution {
public:
int maximumScore(vector<int> &scores, vector<vector<int>> &edges) {
const int n = scores.size();
vector<vector<int>> adj(n);
for (const vector<int> &edge : edges) {
adj[edge[0]].push_back(edge[1]);
adj[edge[1]].push_back(edge[0]);
}
for (vector<int> &a : adj) {
priority_queue<pair<int, int>, vector<pair<int, int>>, greater<>> pqpvg;
for (int v : a) {
int score = scores[v];
if (pqpvg.size() < 3 || pqpvg.top().first < score) {
pqpvg.push({score, v});
if (pqpvg.size() > 3)
pqpvg.pop();
}
}
a.resize(pqpvg.size());
for (int i = a.size() - 1; i >= 0; --i) {
a[i] = pqpvg.top().second;
pqpvg.pop();
}
}
int ans = -1;
for (const vector<int> &edge : edges) {
int u = edge[0], v = edge[1], base = scores[u] + scores[v];
for (int x : adj[u]) {
if (x == v)
continue;
for (int y : adj[v]) {
if (y == u || x == y)
continue;
ans = max(ans, base + scores[x] + scores[y]);
}
}
}
return ans;
}
};
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