제출 #99203

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
99203	2019-03-01 16:29:04	dsg213	Relay (COI16_relay)	C++14	100 / 100	238 ms	9436 KiB

relay

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#include<bits/stdc++.h>
#define mp make_pair
#define st first
#define nd second
#define ll long long
using namespace std;
struct pkt{
  ll x;
  ll y;
};
ll det(pkt a,pkt b,pkt c){
  return a.x*b.y+b.x*c.y+c.x*a.y-a.x*c.y-b.x*a.y-c.x*b.y;
}
int nalewo(pkt pds1,pkt pds2,pkt spr){
  return det(pds1,pds2,spr)>0;
}
int naprawo(pkt pds1,pkt pds2,pkt spr){
  return det(pds1,pds2,spr)<0;
}
pkt sta[110000];
pkt wys[210000];
int zaz[110000];
int n,m;
pair<int,int> odpal(int x){
  int mxl=0,mxp=0;
  for(int i=0;i<m;i++){
    if(naprawo(sta[x],wys[mxp],wys[i])){
      mxp=i;
    }
  }
 
 
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• Subtask 2: 19 / 19
• Subtask 3: 20 / 20
• Subtask 4: 43 / 43