oj.uz

Submission #97719

# Submission time Handle Problem Language Result Execution time Memory
97719 2019-02-17T19:00:54 Z dalgerok Circle selection (APIO18_circle_selection) C++14
100 / 100
 1650 ms 91476 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 splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        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 splitmix64(x.first + FIXED_RANDOM1) ^ splitmix64(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 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 3 ms 384 KB Output is correct
17 Correct 3 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 7 ms 640 KB Output is correct
20 Correct 5 ms 512 KB Output is correct
21 Correct 7 ms 512 KB Output is correct
22 Correct 18 ms 1756 KB Output is correct
23 Correct 13 ms 1628 KB Output is correct
24 Correct 16 ms 1628 KB Output is correct
25 Correct 11 ms 1628 KB Output is correct
26 Correct 11 ms 1756 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 214 ms 8640 KB Output is correct
2 Correct 191 ms 9108 KB Output is correct
3 Correct 284 ms 9676 KB Output is correct
4 Correct 187 ms 8440 KB Output is correct
5 Correct 234 ms 8848 KB Output is correct
6 Correct 701 ms 44084 KB Output is correct
7 Correct 284 ms 11112 KB Output is correct
8 Correct 379 ms 14852 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 346 ms 21368 KB Output is correct
3 Correct 1593 ms 91320 KB Output is correct
4 Correct 1499 ms 91092 KB Output is correct
5 Correct 1398 ms 60444 KB Output is correct
6 Correct 512 ms 30948 KB Output is correct
7 Correct 205 ms 15864 KB Output is correct
8 Correct 28 ms 3688 KB Output is correct
9 Correct 1650 ms 91220 KB Output is correct
10 Correct 1182 ms 60848 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1285 ms 83016 KB Output is correct
2 Correct 1402 ms 90384 KB Output is correct
3 Correct 510 ms 33000 KB Output is correct
4 Correct 1256 ms 90488 KB Output is correct
5 Correct 1247 ms 90616 KB Output is correct
6 Correct 261 ms 19612 KB Output is correct

Subtask #5
30.0 / 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 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 3 ms 384 KB Output is correct
17 Correct 3 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 7 ms 640 KB Output is correct
20 Correct 5 ms 512 KB Output is correct
21 Correct 7 ms 512 KB Output is correct
22 Correct 18 ms 1756 KB Output is correct
23 Correct 13 ms 1628 KB Output is correct
24 Correct 16 ms 1628 KB Output is correct
25 Correct 11 ms 1628 KB Output is correct
26 Correct 11 ms 1756 KB Output is correct
27 Correct 11 ms 768 KB Output is correct
28 Correct 10 ms 728 KB Output is correct
29 Correct 7 ms 640 KB Output is correct
30 Correct 24 ms 3096 KB Output is correct
31 Correct 22 ms 2968 KB Output is correct
32 Correct 26 ms 2960 KB Output is correct
33 Correct 89 ms 3572 KB Output is correct
34 Correct 68 ms 3576 KB Output is correct
35 Correct 76 ms 3060 KB Output is correct
36 Correct 427 ms 21476 KB Output is correct
37 Correct 405 ms 24064 KB Output is correct
38 Correct 474 ms 24260 KB Output is correct
39 Correct 324 ms 22832 KB Output is correct
40 Correct 350 ms 22928 KB Output is correct
41 Correct 330 ms 22760 KB Output is correct
42 Correct 228 ms 23168 KB Output is correct
43 Correct 328 ms 24060 KB Output is correct
44 Correct 345 ms 24064 KB Output is correct
45 Correct 334 ms 24064 KB Output is correct
46 Correct 357 ms 24032 KB Output is correct
47 Correct 333 ms 24036 KB Output is correct
48 Correct 315 ms 24056 KB Output is correct
49 Correct 326 ms 24136 KB Output is correct
50 Correct 370 ms 24040 KB Output is correct

Subtask #6
13.0 / 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 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 3 ms 384 KB Output is correct
17 Correct 3 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 7 ms 640 KB Output is correct
20 Correct 5 ms 512 KB Output is correct
21 Correct 7 ms 512 KB Output is correct
22 Correct 18 ms 1756 KB Output is correct
23 Correct 13 ms 1628 KB Output is correct
24 Correct 16 ms 1628 KB Output is correct
25 Correct 11 ms 1628 KB Output is correct
26 Correct 11 ms 1756 KB Output is correct
27 Correct 214 ms 8640 KB Output is correct
28 Correct 191 ms 9108 KB Output is correct
29 Correct 284 ms 9676 KB Output is correct
30 Correct 187 ms 8440 KB Output is correct
31 Correct 234 ms 8848 KB Output is correct
32 Correct 701 ms 44084 KB Output is correct
33 Correct 284 ms 11112 KB Output is correct
34 Correct 379 ms 14852 KB Output is correct
35 Correct 3 ms 384 KB Output is correct
36 Correct 346 ms 21368 KB Output is correct
37 Correct 1593 ms 91320 KB Output is correct
38 Correct 1499 ms 91092 KB Output is correct
39 Correct 1398 ms 60444 KB Output is correct
40 Correct 512 ms 30948 KB Output is correct
41 Correct 205 ms 15864 KB Output is correct
42 Correct 28 ms 3688 KB Output is correct
43 Correct 1650 ms 91220 KB Output is correct
44 Correct 1182 ms 60848 KB Output is correct
45 Correct 1285 ms 83016 KB Output is correct
46 Correct 1402 ms 90384 KB Output is correct
47 Correct 510 ms 33000 KB Output is correct
48 Correct 1256 ms 90488 KB Output is correct
49 Correct 1247 ms 90616 KB Output is correct
50 Correct 261 ms 19612 KB Output is correct
51 Correct 11 ms 768 KB Output is correct
52 Correct 10 ms 728 KB Output is correct
53 Correct 7 ms 640 KB Output is correct
54 Correct 24 ms 3096 KB Output is correct
55 Correct 22 ms 2968 KB Output is correct
56 Correct 26 ms 2960 KB Output is correct
57 Correct 89 ms 3572 KB Output is correct
58 Correct 68 ms 3576 KB Output is correct
59 Correct 76 ms 3060 KB Output is correct
60 Correct 427 ms 21476 KB Output is correct
61 Correct 405 ms 24064 KB Output is correct
62 Correct 474 ms 24260 KB Output is correct
63 Correct 324 ms 22832 KB Output is correct
64 Correct 350 ms 22928 KB Output is correct
65 Correct 330 ms 22760 KB Output is correct
66 Correct 228 ms 23168 KB Output is correct
67 Correct 328 ms 24060 KB Output is correct
68 Correct 345 ms 24064 KB Output is correct
69 Correct 334 ms 24064 KB Output is correct
70 Correct 357 ms 24032 KB Output is correct
71 Correct 333 ms 24036 KB Output is correct
72 Correct 315 ms 24056 KB Output is correct
73 Correct 326 ms 24136 KB Output is correct
74 Correct 370 ms 24040 KB Output is correct
75 Correct 208 ms 18000 KB Output is correct
76 Correct 194 ms 17404 KB Output is correct
77 Correct 203 ms 18748 KB Output is correct
78 Correct 194 ms 18452 KB Output is correct
79 Correct 240 ms 17148 KB Output is correct
80 Correct 202 ms 18284 KB Output is correct
81 Correct 1623 ms 91148 KB Output is correct
82 Correct 1531 ms 91092 KB Output is correct
83 Correct 1522 ms 91024 KB Output is correct
84 Correct 1624 ms 91476 KB Output is correct
85 Correct 1563 ms 91164 KB Output is correct
86 Correct 1548 ms 91128 KB Output is correct
87 Correct 1535 ms 91296 KB Output is correct
88 Correct 1148 ms 47792 KB Output is correct
89 Correct 1228 ms 47756 KB Output is correct
90 Correct 1239 ms 47892 KB Output is correct
91 Correct 1272 ms 47944 KB Output is correct
92 Correct 1369 ms 47900 KB Output is correct
93 Correct 1354 ms 89940 KB Output is correct
94 Correct 1380 ms 90580 KB Output is correct
95 Correct 1237 ms 90060 KB Output is correct
96 Correct 1564 ms 90200 KB Output is correct
97 Correct 1568 ms 89872 KB Output is correct
98 Correct 905 ms 51432 KB Output is correct
99 Correct 1550 ms 90128 KB Output is correct
100 Correct 1490 ms 90056 KB Output is correct
101 Correct 1042 ms 51308 KB Output is correct
102 Correct 1529 ms 90356 KB Output is correct
103 Correct 1565 ms 90068 KB Output is correct
104 Correct 1506 ms 89812 KB Output is correct
105 Correct 976 ms 88060 KB Output is correct
106 Correct 1150 ms 90836 KB Output is correct
107 Correct 1115 ms 91020 KB Output is correct
108 Correct 1196 ms 91036 KB Output is correct
109 Correct 1226 ms 90820 KB Output is correct
110 Correct 1250 ms 91064 KB Output is correct
111 Correct 1123 ms 90888 KB Output is correct
112 Correct 1155 ms 90836 KB Output is correct
113 Correct 1208 ms 90964 KB Output is correct
114 Correct 1134 ms 90852 KB Output is correct
115 Correct 1094 ms 90836 KB Output is correct
116 Correct 1235 ms 90908 KB Output is correct