Submission #1018436

#	Time	Username	Problem	Language	Result	Execution time	Memory
1018436		huutuan	Towns (IOI15_towns)	C++14	25 / 100	14 ms	1116 KiB

towns

#include "towns.h"

#include <bits/stdc++.h>

using namespace std;

int d1[200], d2[200];

int hubDistance(int N, int sub) {
   int u=0, dis=0;
   for (int i=1; i<N; ++i){
      int d=getDistance(0, i);
      if (d>dis){
         dis=d;
         u=i;
      }
   }
   dis=0;
   int v=u;
   for (int i=0; i<N; ++i) if (i!=u){
      int d=getDistance(u, i);
      d1[i]=d;
      if (d>dis){
         dis=d;
         v=i;
      }
   }
   int ans=1e9;
   for (int i=0; i<N; ++i) if (i!=u && i!=v){
      d2[i]=getDistance(v, i);
      int common=(d1[i]+d2[i]-dis)/2;
      int dl=d1[i]-common, dr=d2[i]-common;
      ans=min(ans, max(dl, dr));
   }
   return ans;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:9:28: warning: unused parameter 'sub' [-Wunused-parameter]
    9 | 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