Submission #740083

#	Time	Username	Problem	Language	Result	Execution time	Memory
740083		vjudge1	Fountain Parks (IOI21_parks)	C++17	5 / 100	64 ms	12452 KiB

parks

#include "parks.h"
#include<bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 100;
int ord[maxn];
int construct_roads(std::vector<int> x, std::vector<int> y){
    int n = x.size();
	if (x.size() == 1) {
	build({}, {}, {}, {});
        return 1;
    }
	vector<pair<int, int>>c;
    for(int i=0; i<n; i++){
    	c.push_back({y[i], i});
	}
	sort(c.begin(), c.end());
	bool ok = 1;
	vector<int>u, v, a, b;
	for(int i=1; i<n; i++){
		if(c[i].first-c[i-1].first != 2) ok = 0;
		u.push_back(c[i-1].second);
		v.push_back(c[i].second);
		a.push_back(1);
		b.push_back(c[i].first-1);
	}
	if(ok) build(u, v, a, b);
    return ok;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30