Submission #802247

#	Time	Username	Problem	Language	Result	Execution time	Memory
802247		caganyanmaz	Towns (IOI15_towns)	C++17	25 / 100	14 ms	716 KiB

towns

#include <bits/stdc++.h>
#include "towns.h"
using namespace std;


constexpr static int INF = 2e9;
constexpr static int MXSIZE = 110;

int n;
int jdist[MXSIZE];

int hubDistance(int N, int sub)
{
        n = N;
        int mxdist = 0;
        int j = 0;
        for (int i = 1; i < n; i++)
        {
                int val = getDistance(0, i);
                if (val > mxdist)
                {
                        j = i;
                        mxdist = val;
                }
        }
        int k = 0;
        jdist[0] = mxdist;
        for (int i = 1; i < n; i++)
        {
                if (i == j)
                        continue;
                int val = getDistance(i, j);
                jdist[i] = val;
                if (val > mxdist)
                {
                        k = i;
                        mxdist = val;
                }
        }
        int r = mxdist;
        for (int i = 0; i < n; i++)
        {
                if (i == j || i == k)
                        continue;
                int da = jdist[i];
                int db = getDistance(i, k);
                int change = (da + db - mxdist) / 2;
                r = min(r, max(da - change, db - change));
        }
        return r;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:12:28: warning: unused parameter 'sub' [-Wunused-parameter]
   12 | 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