Submission #757839

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
757839	2023-06-13 19:23:36	abcvuitunggio	Stranded Far From Home (BOI22_island)	C++17	100 / 100	160 ms	34940 KiB

island

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#include <bits/stdc++.h>
#define int long long
using namespace std;
struct edge{
    int u,v;
}e[200001];
int n,m,p[200001],a[200001],s[200001];
vector <int> ve[200001];
string res;
int f(int i){
    return (p[i]==i?i:p[i]=f(p[i]));
}
void unite(int u, int v){
    int w=max(s[u],s[v]);
    u=f(u);
    v=f(v);
    if (u==v)
        return;
    if (a[u]<w)
        ve[u].clear();
    if (a[v]<w)
        ve[v].clear();
    if (ve[u].size()<ve[v].size())
        swap(u,v);
    a[u]+=a[v];
    p[v]=u;
    for (int i:ve[v])
        ve[u].push_back(i);
    ve[v].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