Submission #439484

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
439484	2021-06-30 05:55:29	qwerasdfzxcl	Fountain Parks (IOI21_parks)	C++17	100 / 100	1042 ms	146924 KiB

parks

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#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
struct point{
    int x, y, n;
    point(){}
    point(int _x, int _y, int _n): x(_x), y(_y), n(_n) {}
    bool operator<(const point &P) const{
        if (x+y==P.x+P.y) return y<P.y;
        return x+y<P.x+P.y;
    }
};
struct DSU{
    int path[200200];
    void init(int n){
        for (int i=0;i<n;i++) path[i] = i;
    }
    int find(int s){
        if (s==path[s]) return s;
        return path[s] = find(path[s]);
    }
    void merge(int s, int v){
        int x = find(s), y = find(v);
        if (x==y) return;
        path[x] = y;
    }
}dsu;
struct Vertex{
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20
• Subtask 6: 30 / 30