Submission #440932

#	Time	Username	Problem	Language	Result	Execution time	Memory
440932		ogibogi2004	Fountain Parks (IOI21_parks)	C++17	5 / 100	68 ms	8116 KiB

parks

#include "parks.h"
#include <bits/stdc++.h>
using namespace std;
struct point
{
	int x,y,idx;
	bool operator<(point const& other)const
	{
		return y<other.y;
	}
};
int construct_roads(vector<int> x, vector<int> y) {
    if (x.size() == 1) {
	build({}, {}, {}, {});
        return 1;
    }
    vector<point>v;
    int n=x.size();
    for(int i=0;i<n;i++)
    {
		v.push_back({x[i],y[i],i});
	}
	sort(v.begin(),v.end());
	for(int i=1;i<v.size();i++)
	{
		if(v[i].y-v[i-1].y!=2)return 0;
	}
	vector<int>ans1,ans2,ans3,ans4;
	for(int i=1;i<v.size();i++)
	{
		ans1.push_back(v[i-1].idx);
		ans2.push_back(v[i].idx);
		ans3.push_back(v[i].x+1);
		ans4.push_back(v[i-1].y+1);
	}
	build(ans1,ans2,ans3,ans4);
    return 1;
}

Compilation message (stderr)

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:24:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |  for(int i=1;i<v.size();i++)
      |              ~^~~~~~~~~
parks.cpp:29:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<point>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |  for(int i=1;i<v.size();i++)
      |              ~^~~~~~~~~

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