Submission #973865

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
973865	2024-05-02 12:04:57	dubabuba	Duathlon (APIO18_duathlon)	C++14	0 / 100	1128 ms	1048576 KiB

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#include <bits/stdc++.h>
using namespace std;
typedef long long i64;
typedef pair<int, int> pii;
#define ff first
#define ss second
#define MP make_pair
const int mxn = 2e5 + 10;
vector<int> adj[mxn];
vector<pii> edges;
i64 kv_sum[mxn]; int col[mxn];
i64 sum_kv[mxn]; int chi[mxn];
int n, m;
int colour(int u) {
  if(col[u] < 0) return u;
  return col[u] = colour(col[u]);
}
bool unite(int u, int v) {
  u = colour(u);
  v = colour(v);
  if(u == v) return 0;
  if(col[u] > col[v]) swap(u, v);
  col[u] += col[v];
  col[v] = u;
 
 
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