Submission #132402

#	Time	Username	Problem	Language	Result	Execution time	Memory
132402		reda	Towns (IOI15_towns)	C++14	13 / 100	21 ms	1016 KiB

towns

#include <bits/stdc++.h>
#include "towns.h"
using namespace std;
int hubDistance( int n, int sub )
{
	int m[n][n], s, t, maxd = -1;
	for(int i = 0; i < n; i++)
    {
		m[i][i] = 0;
		for( int j = i+1; j < n; j++ )
            {
			m[i][j] = getDistance(i,j);
			m[j][i] = m[i][j];
 
			if( m[i][j] > maxd )
                {
				s = i;
				t = j;
				maxd = m[i][j];
                }
            }
	}
 
	int R = 1e9+1;
	for(int i = 0; i < n; ++i )
        {
	        if(i==s || i==t)continue ; 
			int z = (m[i][t] - m[i][s] - maxd)/-2;
			int x = maxd - z;
            int y = m[i][s] - z; 
			R = min(R, max(x, z));
		
	}
	return R;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:30:17: warning: unused variable 'y' [-Wunused-variable]
             int y = m[i][s] - z; 
                 ^
towns.cpp:4:29: warning: unused parameter 'sub' [-Wunused-parameter]
 int hubDistance( int n, int sub )
                             ^~~
towns.cpp:27:14: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
          if(i==s || i==t)continue ; 
             ~^~~
towns.cpp:27:22: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
          if(i==s || i==t)continue ; 
                     ~^~~

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