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답안 #153242

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
153242 2019-09-13T02:07:15 Z username 원 고르기 (APIO18_circle_selection) C++14
0 / 100
 3000 ms 349108 KB 
#include<bits/stdc++.h>
using namespace std;
#define REP(i,j,k) for(int i=(j);i<(k);++i)
#define pb push_back
#define F first
#define S second
#define IOS cin.tie(0),ios_base::sync_with_stdio(false)
#define f2(x) (int64_t(x)*(x))
 
const int maxn=3e5+3;
struct C{int x,y,r,id;}a[maxn];
int n,res[maxn];
bool rmv[maxn];
unordered_map<int64_t,vector<int>>mp;
 
main(){
	IOS;
	cin>>n;
	REP(i,0,n)cin>>a[i].x>>a[i].y>>a[i].r,a[i].id=i;
	sort(a,a+n,[](C&x,C&y){return x.r==y.r?x.id<y.id:x.r>y.r;});
	int k=31;
	REP(i,0,n){
		if(rmv[i])continue;
		if((a[i].r<<1)<(1ll<<k)){
			while((a[i].r<<1)<(1ll<<k))k>>=1;
			mp.clear();
			REP(j,i,n)if(!rmv[j])mp[(int64_t(a[j].x>>k)<<31)+(a[j].y>>k)].pb(j);
		}
		int xx=a[i].x>>k,yy=a[i].y>>k;
		REP(x,xx-5,xx)REP(y,yy-5,yy){
			auto&tls=mp[(int64_t(x+3)<<31)+(y+3)];
			for(auto it=tls.begin();it!=tls.end();++it){
				if(!rmv[*it]&&f2(a[i].x-a[*it].x)+f2(a[i].y-a[*it].y)<=f2(a[i].r+a[*it].r)){
					res[a[*it].id]=a[i].id;
					rmv[*it]=1;
				}
			}
		}
	}
	REP(i,0,n)cout<<res[i]+1<<" ";
}

Compilation message

circle_selection.cpp:16:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^

Subtask #1
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 376 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 299 ms 16100 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3061 ms 349108 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 376 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Incorrect 2 ms 376 KB Output isn't correct
4 Halted 0 ms 0 KB -