oj.uz

Submission #97712

# Submission time Handle Problem Language Result Execution time Memory
97712 2019-02-17T18:52:08 Z dalgerok Circle selection (APIO18_circle_selection) C++17
19 / 100
 3000 ms 48748 KB 
#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;


const int N = 3e5 + 5;



int n, x[N], y[N], r[N], a[N];
int kill_[N], bound;

inline bool cmp(int xx, int yy){
    return r[xx] > r[yy] || (r[xx] == r[yy] && xx < yy);
}

struct custom_hash {
    static uint64_t f(uint64_t x) {
        return x ^ (x >> 31);
    }

    size_t operator()(pair < int, int > x)const{
        static const uint64_t FIXED_RANDOM1 = chrono::steady_clock::now().time_since_epoch().count();
        static const uint64_t FIXED_RANDOM2 = chrono::steady_clock::now().time_since_epoch().count();
        return f(x.first + FIXED_RANDOM1) ^ f(x.second + FIXED_RANDOM2);
    }
};
gp_hash_table < pair < int, int >, vector < int >, custom_hash > q;
inline void update(){
    q.clear();
    for(int i = 1; i <= n; i++){
        if(!kill_[i]){
            q[make_pair(x[i] / bound, y[i] / bound)].push_back(i);
        }
    }
}

inline bool intersect(int i, int j){
    return  1LL * (x[i] - x[j]) * (x[i] - x[j])
            +
            1LL * (y[i] - y[j]) * (y[i] - y[j])
            <=
            1LL * (r[i] + r[j]) * (r[i] + r[j]);
}

int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> x[i] >> y[i] >> r[i];
        a[i] = i;
    }
    sort(a + 1, a + n + 1, cmp);
    bound = 2e9 + 5;
    int pos = 1;
    while(true){
        while(pos <= n && kill_[a[pos]]){
            pos += 1;
        }
        if(pos == n + 1){
            break;
        }
        int cur = a[pos];
        if(2 * r[cur] <= bound){
            bound = r[cur];
            update();
        }
        kill_[cur] = cur;
        int xx = x[cur] / bound,
            yy = y[cur] / bound;
        for(int i = xx - 2; i <= xx + 2; i++){
            for(int j = yy - 2; j <= yy + 2; j++){
                if(q.find(make_pair(i, j)) != q.end()){
                    vector < int > nq;
                    for(auto it : q[make_pair(i, j)]){
                        if(intersect(cur, it)){
                            kill_[it] = cur;
                        }
                        else{
                            nq.push_back(it);
                        }
                    }
                    q[make_pair(i, j)] = nq;
                }
            }
        }
    }
    for(int i = 1; i <= n; i++){
        cout << kill_[i] << " ";
    }
}
/**
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
*/

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 432 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 412 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 3 ms 512 KB Output is correct
18 Correct 2 ms 512 KB Output is correct
19 Correct 6 ms 768 KB Output is correct
20 Correct 7 ms 768 KB Output is correct
21 Correct 5 ms 700 KB Output is correct
22 Correct 10 ms 1756 KB Output is correct
23 Correct 11 ms 1756 KB Output is correct
24 Correct 11 ms 1884 KB Output is correct
25 Correct 10 ms 1756 KB Output is correct
26 Correct 12 ms 1884 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 8360 KB Output is correct
2 Correct 187 ms 16412 KB Output is correct
3 Correct 246 ms 16360 KB Output is correct
4 Correct 190 ms 15200 KB Output is correct
5 Correct 288 ms 13632 KB Output is correct
6 Correct 546 ms 48748 KB Output is correct
7 Correct 1693 ms 15748 KB Output is correct
8 Correct 785 ms 19556 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Execution timed out 3097 ms 23872 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3022 ms 44012 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 432 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 412 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 3 ms 512 KB Output is correct
18 Correct 2 ms 512 KB Output is correct
19 Correct 6 ms 768 KB Output is correct
20 Correct 7 ms 768 KB Output is correct
21 Correct 5 ms 700 KB Output is correct
22 Correct 10 ms 1756 KB Output is correct
23 Correct 11 ms 1756 KB Output is correct
24 Correct 11 ms 1884 KB Output is correct
25 Correct 10 ms 1756 KB Output is correct
26 Correct 12 ms 1884 KB Output is correct
27 Correct 9 ms 1024 KB Output is correct
28 Correct 8 ms 1024 KB Output is correct
29 Correct 9 ms 1072 KB Output is correct
30 Correct 27 ms 3224 KB Output is correct
31 Correct 20 ms 3352 KB Output is correct
32 Correct 20 ms 3352 KB Output is correct
33 Correct 78 ms 6644 KB Output is correct
34 Correct 69 ms 6568 KB Output is correct
35 Correct 67 ms 6048 KB Output is correct
36 Execution timed out 3092 ms 24040 KB Time limit exceeded
37 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 432 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 412 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 3 ms 512 KB Output is correct
18 Correct 2 ms 512 KB Output is correct
19 Correct 6 ms 768 KB Output is correct
20 Correct 7 ms 768 KB Output is correct
21 Correct 5 ms 700 KB Output is correct
22 Correct 10 ms 1756 KB Output is correct
23 Correct 11 ms 1756 KB Output is correct
24 Correct 11 ms 1884 KB Output is correct
25 Correct 10 ms 1756 KB Output is correct
26 Correct 12 ms 1884 KB Output is correct
27 Correct 179 ms 8360 KB Output is correct
28 Correct 187 ms 16412 KB Output is correct
29 Correct 246 ms 16360 KB Output is correct
30 Correct 190 ms 15200 KB Output is correct
31 Correct 288 ms 13632 KB Output is correct
32 Correct 546 ms 48748 KB Output is correct
33 Correct 1693 ms 15748 KB Output is correct
34 Correct 785 ms 19556 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Execution timed out 3097 ms 23872 KB Time limit exceeded
37 Halted 0 ms 0 KB -