oj.uz

Submission #160533

# Submission time Handle Problem Language Result Execution time Memory
160533 2019-10-28T10:47:23 Z Minnakhmetov Circle selection (APIO18_circle_selection) C++14
7 / 100
 3000 ms 44212 KB 
#include <bits/stdc++.h>
    
#define ll long long
#define all(aaa) aaa.begin(), aaa.end()
  
using namespace std;

struct C {
    ll x, y, r, i;
};

const int N = 3e5 + 5, INF = 1e9;
map<pair<ll, ll>, vector<int>> mp;
bool used[N];
C cir[N];
int n;
int ans[N];

bool check(C a, C b) {
    return (a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y) <= 
        (a.r + b.r) * (a.r + b.r);
}

void build(int r) {
    mp.clear();
    for (int i = 0; i < n; i++) {
        if (!used[i]) {
            mp[{cir[i].x / r, cir[i].y / r}].push_back(i);
        }
    }
}
 
signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);

    cin >> n;

    int cur = 0;

    for (int i = 0; i < n; i++) {
        cin >> cir[i].x >> cir[i].y >> cir[i].r;
        cir[i].x += INF;
        cir[i].y += INF;
        cir[i].i = i;
    }

    sort(cir, cir + n, [](const C &a, const C &b) {
        return a.r > b.r;
    });

    cur = cir[0].r;

    build(cur);

    for (int i = 0; i < n; i++) {
        if (!used[i]) {
            // cout << cir[i].x << " " << cir[i].y << " " << cir[i].r << "\n";

            if (cir[i].r * 2 < cur) {
                cur = cir[i].r;
                build(cur);
            }

            int x = cir[i].x / cur,
                y = cir[i].y / cur;

            for (int j = x - 6; j <= x + 6; j++) {
                for (int k = y - 6; k <= y + 6; k++) {
                    if (mp.count({j, k})) {
                        vector<int> &v = mp[{j, k}];
                        for (int h = 0; h < v.size(); h++) {
                            if (check(cir[i], cir[v[h]])) {
                                ans[cir[v[h]].i] = cir[i].i;
                                used[v[h]] = 1;
                                swap(v.back(), v[h]);
                                v.pop_back();
                                h--;
                            }
                        }
                    }
                    
                }
            }
        }
    }

    for (int i = 0; i < n; i++) {
        cout << ans[i] + 1 << " ";
    }
 
    return 0;
}

Compilation message

circle_selection.cpp: In function 'int main()':
circle_selection.cpp:72:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                         for (int h = 0; h < v.size(); h++) {
                                         ~~^~~~~~~~~~

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 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 372 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 3 ms 380 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 348 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 3 ms 380 KB Output is correct
19 Correct 5 ms 632 KB Output is correct
20 Correct 5 ms 632 KB Output is correct
21 Correct 5 ms 632 KB Output is correct
22 Correct 35 ms 1144 KB Output is correct
23 Correct 42 ms 1144 KB Output is correct
24 Correct 34 ms 1272 KB Output is correct
25 Correct 29 ms 1144 KB Output is correct
26 Correct 33 ms 1144 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 203 ms 13648 KB Output is correct
2 Correct 198 ms 13832 KB Output is correct
3 Correct 198 ms 14568 KB Output is correct
4 Correct 195 ms 13864 KB Output is correct
5 Incorrect 296 ms 14248 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 1334 ms 15488 KB Output is correct
3 Execution timed out 3023 ms 44212 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3029 ms 43984 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 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 372 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 3 ms 380 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 348 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 3 ms 380 KB Output is correct
19 Correct 5 ms 632 KB Output is correct
20 Correct 5 ms 632 KB Output is correct
21 Correct 5 ms 632 KB Output is correct
22 Correct 35 ms 1144 KB Output is correct
23 Correct 42 ms 1144 KB Output is correct
24 Correct 34 ms 1272 KB Output is correct
25 Correct 29 ms 1144 KB Output is correct
26 Correct 33 ms 1144 KB Output is correct
27 Correct 9 ms 888 KB Output is correct
28 Correct 9 ms 888 KB Output is correct
29 Correct 9 ms 888 KB Output is correct
30 Correct 83 ms 1896 KB Output is correct
31 Correct 73 ms 1884 KB Output is correct
32 Correct 73 ms 1884 KB Output is correct
33 Correct 73 ms 5252 KB Output is correct
34 Correct 73 ms 5108 KB Output is correct
35 Correct 78 ms 4752 KB Output is correct
36 Correct 1105 ms 15608 KB Output is correct
37 Correct 1096 ms 15608 KB Output is correct
38 Correct 1165 ms 15672 KB Output is correct
39 Incorrect 1273 ms 14124 KB Output isn't correct
40 Halted 0 ms 0 KB -

Subtask #6
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 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 372 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 3 ms 380 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 348 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 3 ms 380 KB Output is correct
19 Correct 5 ms 632 KB Output is correct
20 Correct 5 ms 632 KB Output is correct
21 Correct 5 ms 632 KB Output is correct
22 Correct 35 ms 1144 KB Output is correct
23 Correct 42 ms 1144 KB Output is correct
24 Correct 34 ms 1272 KB Output is correct
25 Correct 29 ms 1144 KB Output is correct
26 Correct 33 ms 1144 KB Output is correct
27 Correct 203 ms 13648 KB Output is correct
28 Correct 198 ms 13832 KB Output is correct
29 Correct 198 ms 14568 KB Output is correct
30 Correct 195 ms 13864 KB Output is correct
31 Incorrect 296 ms 14248 KB Output isn't correct
32 Halted 0 ms 0 KB -