Submission #432633

#	Time	Username	Problem	Language	Result	Execution time	Memory
432633		daniel920712	도시들 (IOI15_towns)	C++14	0 / 100	1076 ms	20612 KiB

towns

#include "towns.h"
#include <iostream>
#include <map>
#include <set>
using namespace std;
int all[205][205]={0};
map < int , set < int > > how[205];
int hubDistance(int N, int sub)
{
    int i,j,k,ans=2e9,a,b,c,x,y,z;
    for(i=0;i<N;i++)
    {
        for(j=i+1;j<N;j++) all[i][j]=all[j][i]=getDistance(i,j);
    }
    for(i=0;i<N;i++)
    {
        for(j=i+1;j<N;j++)
        {
            for(k=j+1;k<N;k++)
            {
                a=all[i][j];
                b=all[i][k];
                c=all[j][k];
                z=(a+b+c)/2-a;
                y=(a+b+c)/2-b;
                x=(a+b+c)/2-c;
                how[i][x].insert(x);
                how[i][x].insert(y);
                how[i][x].insert(z);
                how[j][y].insert(x);
                how[j][y].insert(y);
                how[j][y].insert(z);
                how[k][z].insert(x);
                how[k][z].insert(y);
                how[k][z].insert(z);
            }
        }
    }
    for(i=0;i<N;i++)
    {
        for(auto j:how[i]) ans=min(ans,*prev(j.second.end()));
    }
	return ans;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:41:18: warning: declaration of 'j' shadows a previous local [-Wshadow]
   41 |         for(auto j:how[i]) ans=min(ans,*prev(j.second.end()));
      |                  ^
towns.cpp:10:11: note: shadowed declaration is here
   10 |     int i,j,k,ans=2e9,a,b,c,x,y,z;
      |           ^
towns.cpp:8:28: warning: unused parameter 'sub' [-Wunused-parameter]
    8 | int hubDistance(int N, int sub)
      |                        ~~~~^~~

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