Submission #617679

#	Time	Username	Problem	Language	Result	Execution time	Memory
617679		chirathnirodha	Towns (IOI15_towns)	C++17	25 / 100	14 ms	836 KiB

towns

#include "towns.h"
#include<bits/stdc++.h>
using namespace std;
#define PB push_back
#define F first
#define S second 
 
int hubDistance(int N, int sub) {
	int n=N;
	pair<int,int> maxdis={-1,-1};
	for(int i=0;i<n;i++){
		int x=getDistance(0,i);
		if(x>maxdis.F)maxdis={x,i};
	}
	int a=maxdis.S;
	maxdis={-1,-1};
	int dista[n],distb[n];
	for(int i=0;i<n;i++){
		int x=getDistance(a,i);dista[i]=x;
		if(x>maxdis.F)maxdis={x,i};
	}
	int b=maxdis.S;
	int dia=maxdis.F;
	int ans=dia;
	for(int i=0;i<n;i++)distb[i]=getDistance(i,b);
	for(int i=0;i<n;i++){
		int itodia=(dista[i]+distb[i]-dia)/2;
		ans=min(ans,max(dista[i]-itodia,distb[i]-itodia));
	}
	return ans;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:8:28: warning: unused parameter 'sub' [-Wunused-parameter]
    8 | int hubDistance(int N, int sub) {
      |                        ~~~~^~~

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