#include<cstdio>
#include<vector>
#include<algorithm>
#include<string>
using namespace std;
#define ll long long
#define ccw(a,b,c) ( (a.x*b.y + b.x*c.y + c.x * a.y ) - ( a.y*b.x + b.y*c.x + c.y * a.x) )
struct pt{
ll x,y;
int pos;
pt(){}
pt(ll x,ll y){
this->x=x;
this->y=y;
}
};
pt v[300];
bool compare(pt a,pt b){
return make_pair(a.x,a.y) < make_pair(b.x,b.y);
}
bool poscompare(pt a,pt b){
return a.pos < b.pos;
}
int main(){
int n;scanf("%d",&n);
n*=3;
for(int i=0;i<n;i++){
ll x, y;scanf("%lld %lld",&x,&y);
v[i] = pt(x,y);
v[i].pos = i+1;
}
sort(v,v+n,compare);
vector<string> ans;
for(int i=0;i<n;i+=3){
sort(v+i,v+i+3,poscompare);
string t = "";
t += (v[i].pos +'0');
t += ' ';
t += (v[i+1].pos+'0');
t += ' ';
t += (v[i+2].pos+'0');
ans.push_back(t);
}
sort(ans.begin(),ans.end());
for(int i=0;i<ans.size();i++)
printf("%s\n",ans[i].c_str());
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
1252 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
