Submission #723113

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
723113	2023-04-13 08:50:27	dxz05	Stranded Far From Home (BOI22_island)	C++17	100 / 100	516 ms	38992 KiB

island

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define all(x) (x).begin(), (x).end()
#define MP make_pair
const int N = 200500;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
int n;
int s[N];
bool can[N];
struct dsu{
    vector<int> p;
    vector<long long> sum;
    vector<set<int>> children;
    dsu(){
        p.resize(n);
        iota(all(p), 0);
        sum.resize(n);
        for (int i = 0; i < n; i++) sum[i] = s[i];
        children.resize(n);
        for (int i = 0; i < n; i++){
            children[i].insert(i);
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 30 / 30
• Subtask 5: 35 / 35