이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "rail.h"
#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int maxn=5005;
int kesh[maxn][maxn],N,idxC,idxD,poz[maxn],tip[maxn],najb[maxn];
int dist(int a,int b){
if(a==b)
return 0;
if(kesh[a][b]==-2){
// cout<<a<<" - "<<b<<": ";
int x=getDistance(a,b);
// cout<<x<<endl;
kesh[a][b]=kesh[b][a]=x;
}
return kesh[a][b];
}
void findLocation(int n, int first, int location[], int stype[]){
N=n;
for(int i=0;i<N;i++)
for(int j=0;j<N;j++)
kesh[i][j]=-2;
location[0]=first;
stype[0]=1;
if(N==1)
return;
for(int i=0;i<N;i++){
if(i==0)
najb[i]=1;
else
najb[i]=0;
for(int j=0;j<N;j++){
if(j==i)
continue;
if(dist(i,j)<dist(i,najb[i]))
najb[i]=j;
}
}
idxD=najb[0];
tip[idxD]=2;
poz[idxD]=first+dist(0,idxD);
idxC=najb[idxD];
tip[idxC]=1;
poz[idxC]=poz[idxD]-dist(idxD,idxC);
/*
for(int i=0;i<N;i++)
cout<<i<<": "<<najb[i]<<endl;
cout<<idxC<<" "<<idxD<<endl;*/
for(int i=1;i<N;i++){
if(i==idxC or i==idxD)
continue;
if(najb[i]==idxC){
tip[i]=2;
poz[i]=poz[idxC]+dist(i,idxC);
continue;
}
if(najb[i]==idxD){
tip[i]=1;
poz[i]=poz[idxD]-dist(i,idxD);
continue;
}
int dc=dist(i,idxC);
int dd=dist(i,idxD);
int xx=najb[i];
int yy=najb[xx];
int zzz=0;
if(min(dist(xx,idxC),dist(xx,idxD))<min(dist(yy,idxC),dist(yy,idxD)))
zzz=1;
else
zzz=0;
int dn=min(dist(najb[i],idxC),dist(najb[i],idxD));
if(dd<dc){
if(zzz==1){
tip[i]=2;
poz[i]=poz[idxD]-dn+dist(najb[i],i);
}
else{
tip[i]=1;
poz[i]=poz[idxD]-dd;
}
}
else{
if(zzz==1){
tip[i]=1;
poz[i]=poz[idxC]+dn-dist(najb[i],i);
}
else{
tip[i]=2;
poz[i]=poz[idxC]+dc;
}
}
}
for(int i=1;i<N;i++){
location[i]=poz[i];
stype[i]=tip[i];
}
}
/*
3
15
1 8
1 1
1 2
1 3
2 4
2 5
1 6
2 7
2 9
2 10
1 11
1 12
2 13
1 14
2 15
1
4
1 1
2 4
2 7
2 9
2
6
1 3
2 6
2 7
1 1
1 0
2 8
3
8
1 1
1 25
2 26
1 12
2 18
1 3
2 19
2 10
*/
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