Submission #853923

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
853923	2023-09-25 13:57:49	hngwlog	Connecting Supertrees (IOI20_supertrees)	C++14	40 / 100	176 ms	28276 KiB

supertrees

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#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;
#define fi first
#define se second
#define _size(x) (int)x.size()
#define BIT(i, x) ((x >> i) & 1)
#define MASK(n) ((1 << n) - 1)
#define REP(i, n) for (int i = 0, _n = (n); i < _n; i++)
#define FOR(i, a, b) for (int i = a, _b = (b); i <= _b; i++)
#define FORD(i, a, b) for (int i = a, _b = (b); i >= _b; i--)
#define FORB1(i, mask) for (int i = mask; i > 0; i ^= i & - i)
#define FORB0(i, n, mask) for (int i = ((1 << n) - 1) ^ mask; i > 0; i ^= i & - i)
#define FORALL(i, a) for (auto i: a)
#define fastio ios_base::sync_with_stdio(0); cin.tie(0);
vector<int> root;
int getroot(int u) {
    return root[u] == u ? u : (root[u] = getroot(root[u]));
}
bool unite(int u, int v) {
    u = getroot(u), v = getroot(v);
    if (u == v) return false;
    root[v] = u;
    return true;
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 10 / 10
• Subtask 3: 19 / 19
• Subtask 4: 0 / 35
• Subtask 5: 0 / 21
• Subtask 6: 0 / 4