Submission #131923

#	Time	Username	Problem	Language	Result	Execution time	Memory
131923		faustaadp	Towns (IOI15_towns)	C++17	0 / 100	41 ms	8568 KiB

towns

#include "towns.h"
#include<bits/stdc++.h>
typedef long long ll;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
ll i,j,d[1010][1010],jum[1010],p[1010],has;
vector<ll> isi[1010];
int hubDistance(int N, int sub) 
{
	memset(d,0,sizeof(d));
	for(i=0;i<N;i++)
		isi[i].clear();
	has=0;
	for(i=0;i<N;i++)
		for(j=i+1;j<N;j++)
		{
			d[i][j]=getDistance(i,j);
			d[j][i]=d[i][j];
		}
	memset(p,-1,sizeof(p));
	for(i=0;i<N;i++)
		for(j=0;j<N;j++)
			jum[i]+=d[i][j];
	for(i=0;i<N;i++)
		for(j=i+1;j<N;j++)
		{
			ll tem=abs(jum[j]-jum[i]),X,Y;
			tem/=(N-2);
			X=(d[i][j]-tem)/2;
			Y=d[i][j]-X;
			if(jum[i]>jum[j])
				swap(X,Y);
			//cout<<i<<" "<<j<<" "<<d[i][j]<<" "<<tem<<"  "<<X<<" "<<Y<<"\n";
			isi[i].pb(X);
			isi[j].pb(Y);
		}
	for(i=0;i<N;i++)
	{
		sort(isi[i].begin(),isi[i].end());
		has=max(has,isi[i][N-2]);
		//for(j=0;j<isi[i].size();j++)
		//	cout<<i<<" "<<j<<" "<<isi[i][j]<<"\n";
	}
	return has;
}

Compilation message (stderr)

towns.cpp: In function 'int hubDistance(int, int)':
towns.cpp:20:27: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
    d[i][j]=getDistance(i,j);
                           ^
towns.cpp:20:27: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
towns.cpp:47:9: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
  return has;
         ^~~
towns.cpp:11:28: warning: unused parameter 'sub' [-Wunused-parameter]
 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