OJ-Problems-Source/HDOJ/1435_autoAC.cpp

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#include<iostream>
#include<queue>
#include<cstring>
#include<cstdio>
#include<string>
#include<cmath>
#include<algorithm>
using namespace std;
#define N 205
int engage[N],n;
int boy[N][N],girl[N][N];
void Gale_Shapley(){
queue<int> q;
int boyid,girlid;
for(int i=1;i<=n;i++){
engage[i]=0;
boy[i][0]=1;
q.push(i);
}
while(!q.empty()){
boyid=q.front();
girlid=boy[boyid][boy[boyid][0]++];
if(engage[girlid]==0){
engage[girlid]=boyid;
q.pop();
}
else{
int i;
for(i=1;i<=n;i++)
if(girl[girlid][i]==boyid||girl[girlid][i]==engage[girlid])
break;
if(girl[girlid][i]==boyid){
q.push(engage[girlid]);
engage[girlid]=boyid;
q.pop();
}
}
}
}
struct dis{
double s;
double c;
int id;
};
struct type{
double c;
double x,y,z;
dis D[N];
}O[N],I[N];
void cal_dis(int x){
for(int i=1;i<=n;i++){
double d=0;
d+=(O[x].x-I[i].x)*(O[x].x-I[i].x);
d+=(O[x].y-I[i].y)*(O[x].y-I[i].y);
d+=(O[x].z-I[i].z)*(O[x].z-I[i].z);
d=sqrt(d);
O[x].D[i].s=d;
O[x].D[i].id=i;
O[x].D[i].c=I[i].c;
I[i].D[x].s=d;
I[i].D[x].id=x;
I[i].D[x].c=O[x].c;
}
}
bool cmp(dis a,dis b){
if(a.s==b.s)
return a.c>b.c;
return a.s<b.s;
}
int main(void){
int t;
scanf("%d",&t);
while(t--){
scanf("%d",&n);
for(int i=1;i<=n;i++){
int id;
scanf("%d",&id);
scanf("%lf%lf%lf%lf",&O[id].c,&O[id].x,&O[id].y,&O[id].z);
}
for(int i=1;i<=n;i++){
int id;
scanf("%d",&id);
scanf("%lf%lf%lf%lf",&I[id].c,&I[id].x,&I[id].y,&I[id].z);
}
for(int i=1;i<=n;i++)
cal_dis(i);
for(int i=1;i<=n;i++){
sort(O[i].D+1,O[i].D+n+1,cmp);
for(int j=1;j<=n;j++)
boy[i][j]=O[i].D[j].id;
}
for(int i=1;i<=n;i++){
sort(I[i].D+1,I[i].D+n+1,cmp);
for(int j=1;j<=n;j++)
girl[i][j]=I[i].D[j].id;
}
Gale_Shapley();
int X[N],Y[N];
for(int i=1;i<=n;i++){
X[i]=i;
Y[i]=engage[i];
}
for(int i=1;i<=n;i++)
printf("%d %d\n",Y[i],X[i]);
printf("\n");
}
}