oj.uz

Submission #160532

# Submission time Handle Problem Language Result Execution time Memory
160532 2019-10-28T10:46:34 Z Minnakhmetov Circle selection (APIO18_circle_selection) C++14
7 / 100
 3000 ms 44520 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 - 5; j <= x + 5; j++) {
                for (int k = y - 5; k <= y + 5; 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 5 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 376 KB Output is correct
11 Correct 3 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 380 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 3 ms 504 KB Output is correct
18 Correct 3 ms 504 KB Output is correct
19 Correct 5 ms 760 KB Output is correct
20 Correct 5 ms 760 KB Output is correct
21 Correct 6 ms 760 KB Output is correct
22 Correct 30 ms 1272 KB Output is correct
23 Correct 35 ms 1272 KB Output is correct
24 Correct 29 ms 1240 KB Output is correct
25 Correct 26 ms 1272 KB Output is correct
26 Correct 29 ms 1164 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 199 ms 13832 KB Output is correct
2 Correct 211 ms 14052 KB Output is correct
3 Correct 203 ms 14824 KB Output is correct
4 Correct 207 ms 14120 KB Output is correct
5 Incorrect 281 ms 14504 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 380 KB Output is correct
2 Correct 1128 ms 15892 KB Output is correct
3 Execution timed out 3052 ms 44520 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 3049 ms 44408 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 5 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 376 KB Output is correct
11 Correct 3 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 380 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 3 ms 504 KB Output is correct
18 Correct 3 ms 504 KB Output is correct
19 Correct 5 ms 760 KB Output is correct
20 Correct 5 ms 760 KB Output is correct
21 Correct 6 ms 760 KB Output is correct
22 Correct 30 ms 1272 KB Output is correct
23 Correct 35 ms 1272 KB Output is correct
24 Correct 29 ms 1240 KB Output is correct
25 Correct 26 ms 1272 KB Output is correct
26 Correct 29 ms 1164 KB Output is correct
27 Correct 9 ms 1144 KB Output is correct
28 Correct 9 ms 1144 KB Output is correct
29 Correct 9 ms 1144 KB Output is correct
30 Correct 70 ms 2040 KB Output is correct
31 Correct 66 ms 2112 KB Output is correct
32 Correct 64 ms 2168 KB Output is correct
33 Correct 73 ms 5508 KB Output is correct
34 Correct 72 ms 5620 KB Output is correct
35 Correct 76 ms 5072 KB Output is correct
36 Correct 915 ms 16004 KB Output is correct
37 Correct 907 ms 16092 KB Output is correct
38 Correct 985 ms 15940 KB Output is correct
39 Incorrect 930 ms 14232 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 5 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 376 KB Output is correct
11 Correct 3 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 380 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 3 ms 504 KB Output is correct
18 Correct 3 ms 504 KB Output is correct
19 Correct 5 ms 760 KB Output is correct
20 Correct 5 ms 760 KB Output is correct
21 Correct 6 ms 760 KB Output is correct
22 Correct 30 ms 1272 KB Output is correct
23 Correct 35 ms 1272 KB Output is correct
24 Correct 29 ms 1240 KB Output is correct
25 Correct 26 ms 1272 KB Output is correct
26 Correct 29 ms 1164 KB Output is correct
27 Correct 199 ms 13832 KB Output is correct
28 Correct 211 ms 14052 KB Output is correct
29 Correct 203 ms 14824 KB Output is correct
30 Correct 207 ms 14120 KB Output is correct
31 Incorrect 281 ms 14504 KB Output isn't correct
32 Halted 0 ms 0 KB -