Submission #734182

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
734182	2023-05-02 03:36:23	PurpleCrayon	Stranded Far From Home (BOI22_island)	C++17	100 / 100	356 ms	53972 KiB

island

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#include <bits/stdc++.h>
using namespace std;
 
#define sz(v) int(v.size())
#define ar array
typedef long long ll;
const int N = 2e5+10, MOD = 1e9+7;
// keep removing the max node, mark component as bad if it's sum is < value of the node
int n, m;
int s[N], par[N];
ll sum[N];
vector<int> st[N], good[N], adj[N];
bool ans[N];
void mark_bad(int c) {
    c = par[c];
    for (int x : good[c]) ans[x] = 0;
    good[c].clear();
}
void union_sets(int a, int b) {
    a = par[a], b = par[b];
    if (a == b) return;
    if (sz(st[a]) < sz(st[b])) swap(a, b);
    for (int x : st[b]) {
        par[x] = a;
        st[a].push_back(x);
    }
    st[b].clear();
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 30 / 30
• Subtask 5: 35 / 35