Submission #552425

#	Time	Username	Problem	Language	Result	Execution time	Memory
552425		zaneyu	Circle selection (APIO18_circle_selection)	C++14	7 / 100	3082 ms	19000 KiB

circle_selection

/*input
11
9 9 2
13 2 1
11 8 2
3 3 2
3 12 1
12 14 1
9 8 5
2 8 2
5 2 1
14 4 2
14 14 1
*/
#include<bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma target("avx3")
using namespace std;
#define REP(i,n) for(int i=0;i<n;i++)
const int maxn=3e5+5;
#define pb push_back
#define lowb(x) x&(-x)
#define ll long long
#define MNTO(x,y) x=min(x,y)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define pii pair<ll,ll>
#define f first
#define s second
pair<pii,ll> arr[maxn];
inline bool inter(int a,int b){
    ll d=(arr[a].f.s-arr[b].f.s)*(arr[a].f.s-arr[b].f.s)+(arr[a].f.f-arr[b].f.f)*(arr[a].f.f-arr[b].f.f);
    return d<=(arr[a].s+arr[b].s)*(arr[a].s+arr[b].s);
}
bool ok[maxn];
int ans[maxn];
int main(){
    ios::sync_with_stdio(false),cin.tie(0);
    int n;
    cin>>n;
    vector<int> v;
    REP(i,n) cin>>arr[i].f.f>>arr[i].f.s>>arr[i].s,v.pb(i);
    REP(i,n){
        int p=-1;
        for(int j:v){
            if(ok[j]) continue;
            if(p==-1 or arr[p].s<arr[j].s) p=j;
        }
        if(p==-1) break;
        vector<int> nv;
        for(int j:v){
            if(inter(j,p)) ans[j]=p,ok[j]=1;
            else nv.pb(j);
        }
        v=nv;
    }
    REP(i,n){
        cout<<ans[i]+1<<' ';
    }
}

Compilation message (stderr)

circle_selection.cpp:17: warning: ignoring '#pragma target ' [-Wunknown-pragmas]
   17 | #pragma target("avx3")
      |

• Subtask 1: 7 / 7
• Subtask 2: 0 / 12
• Subtask 3: 0 / 15
• Subtask 4: 0 / 23
• Subtask 5: 0 / 30
• Subtask 6: 0 / 13