oj.uz

Submission #87164

# Submission time Handle Problem Language Result Execution time Memory
87164 2018-11-29T19:39:18 Z fedoseevtimofey Circle selection (APIO18_circle_selection) C++14
100 / 100
 2529 ms 411756 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef long double ld;
 
int n;
vector <int> x, y, r;
vector <int> _kill;

void init() {
    cin >> n;
    x.resize(n);
    y.resize(n);
    r.resize(n);
    for (int i = 0; i < n; ++i) {
        cin >> x[i] >> y[i] >> r[i];
    }
}
 
bool inter(int i, int j) {
    return (ll)(x[i] - x[j]) * (x[i] - x[j]) + (ll)(y[i] - y[j]) * (y[i] - y[j]) <= (ll)(r[i] + r[j]) * (r[i] + r[j]);
}
 
map <pair <int, int>, vector <int>> who;
 
 
void rebuild(int B) {
    who.clear();
    for (int i = 0; i < n; ++i) {
        if (_kill[i] != -1) continue;
        int xx = x[i] / B;
        int yy = y[i] / B;
        who[make_pair(xx, yy)].push_back(i);
    }
}
 
void solve() {
    _kill.resize(n, -1);
    vector <int> idx(n);
    iota(idx.begin(), idx.end(), 0);
    sort(idx.begin(), idx.end(), [&] (int i, int j) {
        if (r[i] != r[j]) return r[i] > r[j];
        return i < j;
    });
    int uk = 0;
    int B = 2e9 + 7;
    while (true) {
        while (uk < n && _kill[idx[uk]] != -1) ++uk;
        if (uk == n) break;
        int cur = idx[uk];
        if ((r[cur] << 1) <= B) {
            B = r[cur];
            rebuild(B);
        }
        _kill[cur] = cur;
        int xx = x[cur] / B;
        int yy = y[cur] / B;
        for (int cx = xx - 2; cx <= xx + 2; ++cx) {
            for (int cy = yy - 2; cy <= yy + 2; ++cy) {
                if (who.count(make_pair(cx, cy))) {
                    for (auto j : who[make_pair(cx, cy)]) {
                        if (_kill[j] == -1 && inter(cur, j)) {
                            _kill[j] = cur;
                        }
                    }
                }
            }
        }
    }
    for (int i = 0; i < n; ++i) {
        cout << _kill[i] + 1 << ' ';
    }
}
 
int main() {
    ios_base::sync_with_stdio(false); cin.tie(0); cout.setf(ios::fixed); cout.precision(20);
    #ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    #endif
    init();
    solve();
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 524 KB Output is correct
5 Correct 2 ms 544 KB Output is correct
6 Correct 2 ms 544 KB Output is correct
7 Correct 2 ms 560 KB Output is correct
8 Correct 2 ms 560 KB Output is correct
9 Correct 2 ms 560 KB Output is correct
10 Correct 2 ms 560 KB Output is correct
11 Correct 2 ms 620 KB Output is correct
12 Correct 2 ms 636 KB Output is correct
13 Correct 3 ms 636 KB Output is correct
14 Correct 2 ms 636 KB Output is correct
15 Correct 3 ms 636 KB Output is correct
16 Correct 3 ms 636 KB Output is correct
17 Correct 3 ms 636 KB Output is correct
18 Correct 3 ms 636 KB Output is correct
19 Correct 5 ms 764 KB Output is correct
20 Correct 6 ms 764 KB Output is correct
21 Correct 5 ms 780 KB Output is correct
22 Correct 17 ms 1308 KB Output is correct
23 Correct 18 ms 1324 KB Output is correct
24 Correct 20 ms 1332 KB Output is correct
25 Correct 15 ms 1340 KB Output is correct
26 Correct 18 ms 1344 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 217 ms 8708 KB Output is correct
2 Correct 193 ms 9352 KB Output is correct
3 Correct 223 ms 9868 KB Output is correct
4 Correct 192 ms 9868 KB Output is correct
5 Correct 262 ms 9868 KB Output is correct
6 Correct 788 ms 24764 KB Output is correct
7 Correct 300 ms 24764 KB Output is correct
8 Correct 387 ms 24764 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 24764 KB Output is correct
2 Correct 520 ms 24764 KB Output is correct
3 Correct 1979 ms 41476 KB Output is correct
4 Correct 2207 ms 49472 KB Output is correct
5 Correct 1886 ms 51212 KB Output is correct
6 Correct 619 ms 51212 KB Output is correct
7 Correct 243 ms 51212 KB Output is correct
8 Correct 38 ms 51212 KB Output is correct
9 Correct 2194 ms 71880 KB Output is correct
10 Correct 1700 ms 73492 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1825 ms 81156 KB Output is correct
2 Correct 1295 ms 88380 KB Output is correct
3 Correct 484 ms 88380 KB Output is correct
4 Correct 1339 ms 104176 KB Output is correct
5 Correct 1323 ms 111872 KB Output is correct
6 Correct 301 ms 111872 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 524 KB Output is correct
5 Correct 2 ms 544 KB Output is correct
6 Correct 2 ms 544 KB Output is correct
7 Correct 2 ms 560 KB Output is correct
8 Correct 2 ms 560 KB Output is correct
9 Correct 2 ms 560 KB Output is correct
10 Correct 2 ms 560 KB Output is correct
11 Correct 2 ms 620 KB Output is correct
12 Correct 2 ms 636 KB Output is correct
13 Correct 3 ms 636 KB Output is correct
14 Correct 2 ms 636 KB Output is correct
15 Correct 3 ms 636 KB Output is correct
16 Correct 3 ms 636 KB Output is correct
17 Correct 3 ms 636 KB Output is correct
18 Correct 3 ms 636 KB Output is correct
19 Correct 5 ms 764 KB Output is correct
20 Correct 6 ms 764 KB Output is correct
21 Correct 5 ms 780 KB Output is correct
22 Correct 17 ms 1308 KB Output is correct
23 Correct 18 ms 1324 KB Output is correct
24 Correct 20 ms 1332 KB Output is correct
25 Correct 15 ms 1340 KB Output is correct
26 Correct 18 ms 1344 KB Output is correct
27 Correct 9 ms 111872 KB Output is correct
28 Correct 8 ms 111872 KB Output is correct
29 Correct 9 ms 111872 KB Output is correct
30 Correct 35 ms 111872 KB Output is correct
31 Correct 33 ms 111872 KB Output is correct
32 Correct 32 ms 111872 KB Output is correct
33 Correct 67 ms 111872 KB Output is correct
34 Correct 66 ms 111872 KB Output is correct
35 Correct 70 ms 111872 KB Output is correct
36 Correct 446 ms 111872 KB Output is correct
37 Correct 469 ms 111872 KB Output is correct
38 Correct 453 ms 111872 KB Output is correct
39 Correct 338 ms 111872 KB Output is correct
40 Correct 347 ms 111872 KB Output is correct
41 Correct 411 ms 111872 KB Output is correct
42 Correct 314 ms 111872 KB Output is correct
43 Correct 358 ms 111872 KB Output is correct
44 Correct 336 ms 111872 KB Output is correct
45 Correct 324 ms 111872 KB Output is correct
46 Correct 334 ms 111872 KB Output is correct
47 Correct 329 ms 111872 KB Output is correct
48 Correct 333 ms 111872 KB Output is correct
49 Correct 323 ms 111872 KB Output is correct
50 Correct 343 ms 111872 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 524 KB Output is correct
5 Correct 2 ms 544 KB Output is correct
6 Correct 2 ms 544 KB Output is correct
7 Correct 2 ms 560 KB Output is correct
8 Correct 2 ms 560 KB Output is correct
9 Correct 2 ms 560 KB Output is correct
10 Correct 2 ms 560 KB Output is correct
11 Correct 2 ms 620 KB Output is correct
12 Correct 2 ms 636 KB Output is correct
13 Correct 3 ms 636 KB Output is correct
14 Correct 2 ms 636 KB Output is correct
15 Correct 3 ms 636 KB Output is correct
16 Correct 3 ms 636 KB Output is correct
17 Correct 3 ms 636 KB Output is correct
18 Correct 3 ms 636 KB Output is correct
19 Correct 5 ms 764 KB Output is correct
20 Correct 6 ms 764 KB Output is correct
21 Correct 5 ms 780 KB Output is correct
22 Correct 17 ms 1308 KB Output is correct
23 Correct 18 ms 1324 KB Output is correct
24 Correct 20 ms 1332 KB Output is correct
25 Correct 15 ms 1340 KB Output is correct
26 Correct 18 ms 1344 KB Output is correct
27 Correct 217 ms 8708 KB Output is correct
28 Correct 193 ms 9352 KB Output is correct
29 Correct 223 ms 9868 KB Output is correct
30 Correct 192 ms 9868 KB Output is correct
31 Correct 262 ms 9868 KB Output is correct
32 Correct 788 ms 24764 KB Output is correct
33 Correct 300 ms 24764 KB Output is correct
34 Correct 387 ms 24764 KB Output is correct
35 Correct 2 ms 24764 KB Output is correct
36 Correct 520 ms 24764 KB Output is correct
37 Correct 1979 ms 41476 KB Output is correct
38 Correct 2207 ms 49472 KB Output is correct
39 Correct 1886 ms 51212 KB Output is correct
40 Correct 619 ms 51212 KB Output is correct
41 Correct 243 ms 51212 KB Output is correct
42 Correct 38 ms 51212 KB Output is correct
43 Correct 2194 ms 71880 KB Output is correct
44 Correct 1700 ms 73492 KB Output is correct
45 Correct 1825 ms 81156 KB Output is correct
46 Correct 1295 ms 88380 KB Output is correct
47 Correct 484 ms 88380 KB Output is correct
48 Correct 1339 ms 104176 KB Output is correct
49 Correct 1323 ms 111872 KB Output is correct
50 Correct 301 ms 111872 KB Output is correct
51 Correct 9 ms 111872 KB Output is correct
52 Correct 8 ms 111872 KB Output is correct
53 Correct 9 ms 111872 KB Output is correct
54 Correct 35 ms 111872 KB Output is correct
55 Correct 33 ms 111872 KB Output is correct
56 Correct 32 ms 111872 KB Output is correct
57 Correct 67 ms 111872 KB Output is correct
58 Correct 66 ms 111872 KB Output is correct
59 Correct 70 ms 111872 KB Output is correct
60 Correct 446 ms 111872 KB Output is correct
61 Correct 469 ms 111872 KB Output is correct
62 Correct 453 ms 111872 KB Output is correct
63 Correct 338 ms 111872 KB Output is correct
64 Correct 347 ms 111872 KB Output is correct
65 Correct 411 ms 111872 KB Output is correct
66 Correct 314 ms 111872 KB Output is correct
67 Correct 358 ms 111872 KB Output is correct
68 Correct 336 ms 111872 KB Output is correct
69 Correct 324 ms 111872 KB Output is correct
70 Correct 334 ms 111872 KB Output is correct
71 Correct 329 ms 111872 KB Output is correct
72 Correct 333 ms 111872 KB Output is correct
73 Correct 323 ms 111872 KB Output is correct
74 Correct 343 ms 111872 KB Output is correct
75 Correct 262 ms 111872 KB Output is correct
76 Correct 214 ms 111872 KB Output is correct
77 Correct 208 ms 115984 KB Output is correct
78 Correct 202 ms 124832 KB Output is correct
79 Correct 250 ms 132416 KB Output is correct
80 Correct 205 ms 142368 KB Output is correct
81 Correct 2090 ms 182156 KB Output is correct
82 Correct 2160 ms 190240 KB Output is correct
83 Correct 2190 ms 197920 KB Output is correct
84 Correct 2207 ms 206228 KB Output is correct
85 Correct 2048 ms 214248 KB Output is correct
86 Correct 2079 ms 222184 KB Output is correct
87 Correct 2484 ms 230136 KB Output is correct
88 Correct 1454 ms 230136 KB Output is correct
89 Correct 1541 ms 232060 KB Output is correct
90 Correct 1521 ms 235480 KB Output is correct
91 Correct 1499 ms 238860 KB Output is correct
92 Correct 1544 ms 242304 KB Output is correct
93 Correct 1603 ms 254156 KB Output is correct
94 Correct 1706 ms 261368 KB Output is correct
95 Correct 1603 ms 268356 KB Output is correct
96 Correct 1682 ms 275388 KB Output is correct
97 Correct 2529 ms 282244 KB Output is correct
98 Correct 1051 ms 282244 KB Output is correct
99 Correct 1582 ms 296692 KB Output is correct
100 Correct 1541 ms 303568 KB Output is correct
101 Correct 1508 ms 303940 KB Output is correct
102 Correct 1770 ms 317380 KB Output is correct
103 Correct 2424 ms 324420 KB Output is correct
104 Correct 1669 ms 329796 KB Output is correct
105 Correct 1294 ms 334368 KB Output is correct
106 Correct 1228 ms 339980 KB Output is correct
107 Correct 1227 ms 347772 KB Output is correct
108 Correct 1268 ms 354396 KB Output is correct
109 Correct 1265 ms 362232 KB Output is correct
110 Correct 1238 ms 369424 KB Output is correct
111 Correct 1289 ms 374672 KB Output is correct
112 Correct 1242 ms 382472 KB Output is correct
113 Correct 1253 ms 388980 KB Output is correct
114 Correct 1245 ms 396276 KB Output is correct
115 Correct 1335 ms 403992 KB Output is correct
116 Correct 1242 ms 411756 KB Output is correct