Submission #640242

#	Time	Username	Problem	Language	Result	Execution time	Memory
640242		ggoh	Towns (IOI15_towns)	C++14	13 / 100	13 ms	496 KiB

towns

#include "towns.h"
#include<bits/stdc++.h>
using namespace std;
#define sz(v) ((int)(v).size())
typedef long long lint;

int hubDistance(int N, int sub) {
	int dis,maxi=-1,maxj=-1,maxx=-1;
	int R=1e9;
	for(int i=1;i<N;i++)
	{
		dis=getDistance(0,i);
		if(dis>maxx)
		{
			maxx=dis;
			maxi=i;
		}
	}
	maxx=-1;
	for(int i=0;i<N;i++)
	{
		if(i!=maxi)
		{
			dis=getDistance(maxi,i);
			if(dis>maxx)
			{
				maxx=dis;
				maxj=i;
			}
		}
	}
	vector<int>X;
	for(int i=0;i<N;i++)
	{
		if(i!=maxi && i!=maxj)
		{
			X.push_back((getDistance(maxi,i)-getDistance(maxj,i)+maxx)/2);
		}
	}
	sort(X.begin(),X.end());
	for(auto &k:X)
	{
		R=min(R,max(maxx-k,k));
	}

	return R;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:7:28: warning: unused parameter 'sub' [-Wunused-parameter]
    7 | int hubDistance(int N, int sub) {
      |                        ~~~~^~~

• Subtask 1: 13 / 13
• Subtask 2: 0 / 12
• Subtask 3: 0 / 13
• Subtask 4: 0 / 10
• Subtask 5: 0 / 13
• Subtask 6: 0 / 39