Submission #740082

#	Time	Username	Problem	Language	Result	Execution time	Memory
740082		vjudge1	Fountain Parks (IOI21_parks)	C++17	0 / 100	17 ms	4788 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;
    }
    for(int i=0; i<n; i++){
    	ord[i] = i;
	}
//	sort(ord, ord+n, [](int a, int b){
//		return y[a] < y[b];
//	});
	bool ok = 1;
	vector<int>u, v, a, b;
	for(int i=1; i<n; i++){
		if(y[i]-y[i-1] != 2) ok = 0;
		u.push_back(ord[i-1]);
		v.push_back(ord[i]);
		a.push_back(1);
		b.push_back(y[ord[i]]-1);
	}
	if(ok) build(u, v, a, b);
    return ok;
}

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