Submission #574165

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
574165	2022-06-08 05:24:11	MilosMilutinovic	Stranded Far From Home (BOI22_island)	C++14	100 / 100	252 ms	36804 KiB

island

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#include <bits/stdc++.h>
using namespace std;
const int N = 200005;
int n, m, s[N], fa[N], mx[N], ans[N];
long long sum[N];
vector<int> g[N], ch[N];
int getfa(int x) {
    return fa[x] == x ? x : fa[x] = getfa(fa[x]);
}
void unite(int x, int y) {
    x = getfa(x);
    y = getfa(y);
    if (x == y)
        return;
    if (sum[x] < mx[y])
        ch[x].clear();
    if (mx[x] > sum[y])
        ch[y].clear();
    if (ch[x].size() < ch[y].size())
        swap(x, y);
    for (int i : ch[y])
        ch[x].push_back(i);
    fa[y] = x;
    mx[x] = max(mx[x], mx[y]);
    sum[x] += sum[y];
}
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    cin >> n >> m;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 30 / 30
• Subtask 5: 35 / 35