Submission #654570

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
654570	2022-10-31 18:22:56	erto	Stranded Far From Home (BOI22_island)	C++17	100 / 100	742 ms	141488 KiB

island

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#include <bits/stdc++.h>
typedef long long int ll;
typedef long double ld;
#define INF (int)(1e9 + 7)
#define INF2 998244353
#define N (ll)(2e5 + 5)
//#define f first
//#define s second
#define int ll
#define lsb(x) (x & (-x))
using namespace std;
int n, m, g, h;
int ans[N];
set<pair<int, int>> v[N];
int a[N];
int p[N], sz[N];
bool used[N];
set<int> ss[N];
int get(int x){
    return p[x] = (p[x] == x ? x : get(p[x]));
}
void unite(int x, int y){
    int a = get(x), b = get(y);
    if(a == b)return;
    if(ss[a].size() < ss[b].size())swap(ss[a], ss[b]);
    sz[a] += sz[b];
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 30 / 30
• Subtask 5: 35 / 35