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Submission #774917

# Submission time Handle Problem Language Result Execution time Memory
774917 2023-07-06T05:43:56 Z xetrk Circle selection (APIO18_circle_selection) C++17
87 / 100
 3000 ms 144604 KB 
#pragma warning(disable:4996)

#include<bits/stdc++.h>
#include<unordered_set>
#include<unordered_map>
using namespace std;


typedef long long ll;
typedef long double ld;

int n;

vector<vector<ll>> circle;

vector<pair<ll, int>> sortRadius;
//set<pair<ll,int>> sortX, sortY;

//int skipX[300100], skipY[300100];
//int xIdx[300100], yIdx[300100];

set<vector<ll>> circleSet;


int ans[301000];

inline ll GetDist(ll x1, ll y1, ll x2, ll y2)
{
    // 아 좌표값 마이너스도 들어오네
    ll xx = max(x1, x2) - min(x1, x2);
    ll yy = max(y1, y2) - min(y1, y2);
    return (xx * xx) + (yy * yy);
}



bool comp(const pair<ll, int>& a, const pair<ll, int>& b)
{
    if (a.first == b.first)
        return a.second < b.second;
    return a.first < b.first;
}

bool compSort(const pair<ll, int>& a, const pair<ll, int>& b)
{
    if (a.first == b.first)
        return a.second < b.second;

    return a.first > b.first;
}


map<pair<ll, ll>, multiset<vector<ll>>> SetGrid(ll gridSize)
{
    map<pair<ll, ll>, multiset<vector<ll>>> myGrid;
    ll x, y, r, i;
    for (auto c = circleSet.begin(); c != circleSet.end(); c++)
    {
        x = (*c)[0], y = (*c)[1], r = (*c)[2], i = (*c)[3];
        if (myGrid.insert({ {x / gridSize, y / gridSize},{{x,y,r,i}} }).second == false)
        {
            auto iter = myGrid.find({ x / gridSize, y / gridSize });
            (*iter).second.insert({ x,y,r,i });
        }
    }

    return myGrid;

}

int main()
{
    
    ll x, y, r, r2;
    int i;
    scanf("%d", &n);

    for (int i = 0; i < n; i++)
    {
        scanf("%lld %lld %lld", &x, &y, &r);
        //x = 1, y = 1, r = 3;
        //좌표는 양수로만 그래야 그리드계산 편함
        x += 1000000000L;
        y += 1000000000L;
           //1000000000
        circle.push_back({ x,y,r });
        circleSet.insert({ x,y,r,i });
        sortRadius.push_back({ r,i });
    }

    sort(sortRadius.begin(), sortRadius.end(), compSort);
    //sort(sortX.begin(), sortX.end());
    //sort(sortY.begin(), sortY.end());


    int cur, curcmp;
    //int xMin, xMax, yMin, yMax;
    ll rr;

    fill(ans, ans + n + 2, -1);

    ll gridSize = sortRadius[0].first * 2LL;
    map<pair<ll, ll>, multiset<vector<ll>>> gridAll = SetGrid(gridSize);
    ll gridX, gridY;
    ll nx, ny, nr;
    int ni;

    multiset<vector<ll>> curGrids;

    for (int curDelete = 0; curDelete < n; curDelete++)
    {
        cur = sortRadius[curDelete].second;
        if (ans[cur] != -1)
            continue;

        if (gridSize / 3 >= sortRadius[curDelete].first*2LL && gridSize>3)
        {
            gridSize /= 3;
            gridAll = SetGrid(gridSize);
        }
            
        ans[cur] = cur;

        x = circle[cur][0], y = circle[cur][1], r = circle[cur][2];

        gridX = x / gridSize, gridY = y / gridSize;
        circleSet.erase({ x,y,r,cur });
        (*gridAll.find({ gridX,gridY })).second.erase({ x,y,r,cur });
        
        for (int curGridX = gridX - 1; curGridX <= gridX + 1; curGridX++)
        {
            for (int curGridY = gridY - 1; curGridY <= gridY + 1; curGridY++)
            {
                auto ggg = gridAll.find({ curGridX, curGridY });
                if (ggg == gridAll.end())
                    continue;
                curGrids = (*ggg).second;
                vector<multiset<vector<ll>>::iterator> eraseItems;
                for (auto curCircle = curGrids.begin(); curCircle != curGrids.end(); curCircle++)
                {
                    nx = (*curCircle)[0], ny = (*curCircle)[1], nr = (*curCircle)[2], ni = (*curCircle)[3];
                    if (ans[ni] != -1)
                        continue;
                    if (GetDist(x, y, nx, ny) <= (r + nr) * (r + nr))
                    {
                        ans[ni] = cur ;
                        eraseItems.push_back(curCircle);

                        circleSet.erase({ nx,ny,nr,ni });//log n 최대 n번
                    }
                }

                for (auto eraseIt : eraseItems)
                    curGrids.erase(eraseIt);//log n 최대 n*32 번

            }
        }
  
    }

    for (int i = 0; i < n; i++)
        printf("%d ", ans[i] + 1);

    return 0;
}

Compilation message

circle_selection.cpp:1: warning: ignoring '#pragma warning ' [-Wunknown-pragmas]
    1 | #pragma warning(disable:4996)
      | 
circle_selection.cpp: In function 'int main()':
circle_selection.cpp:74:17: warning: unused variable 'r2' [-Wunused-variable]
   74 |     ll x, y, r, r2;
      |                 ^~
circle_selection.cpp:75:9: warning: unused variable 'i' [-Wunused-variable]
   75 |     int i;
      |         ^
circle_selection.cpp:96:14: warning: unused variable 'curcmp' [-Wunused-variable]
   96 |     int cur, curcmp;
      |              ^~~~~~
circle_selection.cpp:98:8: warning: unused variable 'rr' [-Wunused-variable]
   98 |     ll rr;
      |        ^~
circle_selection.cpp:76:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   76 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
circle_selection.cpp:80:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   80 |         scanf("%lld %lld %lld", &x, &y, &r);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 236 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 304 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 304 KB Output is correct
16 Correct 2 ms 596 KB Output is correct
17 Correct 2 ms 596 KB Output is correct
18 Correct 2 ms 724 KB Output is correct
19 Correct 7 ms 2516 KB Output is correct
20 Correct 7 ms 2260 KB Output is correct
21 Correct 12 ms 2416 KB Output is correct
22 Correct 12 ms 2516 KB Output is correct
23 Correct 13 ms 2520 KB Output is correct
24 Correct 12 ms 2516 KB Output is correct
25 Correct 14 ms 2428 KB Output is correct
26 Correct 12 ms 2516 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 896 ms 116100 KB Output is correct
2 Correct 988 ms 116884 KB Output is correct
3 Correct 930 ms 120896 KB Output is correct
4 Correct 774 ms 130028 KB Output is correct
5 Correct 827 ms 95324 KB Output is correct
6 Correct 1105 ms 104584 KB Output is correct
7 Correct 888 ms 96068 KB Output is correct
8 Correct 912 ms 97292 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 534 ms 43904 KB Output is correct
3 Correct 2092 ms 130052 KB Output is correct
4 Correct 2151 ms 130116 KB Output is correct
5 Correct 1870 ms 123312 KB Output is correct
6 Correct 729 ms 62112 KB Output is correct
7 Correct 291 ms 33068 KB Output is correct
8 Correct 34 ms 7020 KB Output is correct
9 Correct 2109 ms 144604 KB Output is correct
10 Correct 1716 ms 136096 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1563 ms 130008 KB Output is correct
2 Correct 1496 ms 130028 KB Output is correct
3 Correct 1153 ms 99140 KB Output is correct
4 Correct 1406 ms 130168 KB Output is correct
5 Correct 1406 ms 130032 KB Output is correct
6 Correct 1113 ms 96904 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 236 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 304 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 304 KB Output is correct
16 Correct 2 ms 596 KB Output is correct
17 Correct 2 ms 596 KB Output is correct
18 Correct 2 ms 724 KB Output is correct
19 Correct 7 ms 2516 KB Output is correct
20 Correct 7 ms 2260 KB Output is correct
21 Correct 12 ms 2416 KB Output is correct
22 Correct 12 ms 2516 KB Output is correct
23 Correct 13 ms 2520 KB Output is correct
24 Correct 12 ms 2516 KB Output is correct
25 Correct 14 ms 2428 KB Output is correct
26 Correct 12 ms 2516 KB Output is correct
27 Correct 14 ms 4008 KB Output is correct
28 Correct 14 ms 4348 KB Output is correct
29 Correct 14 ms 4236 KB Output is correct
30 Correct 26 ms 4704 KB Output is correct
31 Correct 25 ms 4736 KB Output is correct
32 Correct 24 ms 4744 KB Output is correct
33 Correct 189 ms 46028 KB Output is correct
34 Correct 187 ms 39324 KB Output is correct
35 Correct 246 ms 37224 KB Output is correct
36 Correct 472 ms 43860 KB Output is correct
37 Correct 477 ms 43892 KB Output is correct
38 Correct 503 ms 43884 KB Output is correct
39 Correct 2239 ms 53180 KB Output is correct
40 Correct 2140 ms 53228 KB Output is correct
41 Correct 2148 ms 53308 KB Output is correct
42 Correct 292 ms 34556 KB Output is correct
43 Correct 333 ms 43244 KB Output is correct
44 Correct 346 ms 43232 KB Output is correct
45 Correct 353 ms 43228 KB Output is correct
46 Correct 362 ms 43252 KB Output is correct
47 Correct 343 ms 43244 KB Output is correct
48 Correct 336 ms 43248 KB Output is correct
49 Correct 348 ms 43332 KB Output is correct
50 Correct 347 ms 43232 KB Output is correct

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 236 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 304 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 304 KB Output is correct
16 Correct 2 ms 596 KB Output is correct
17 Correct 2 ms 596 KB Output is correct
18 Correct 2 ms 724 KB Output is correct
19 Correct 7 ms 2516 KB Output is correct
20 Correct 7 ms 2260 KB Output is correct
21 Correct 12 ms 2416 KB Output is correct
22 Correct 12 ms 2516 KB Output is correct
23 Correct 13 ms 2520 KB Output is correct
24 Correct 12 ms 2516 KB Output is correct
25 Correct 14 ms 2428 KB Output is correct
26 Correct 12 ms 2516 KB Output is correct
27 Correct 896 ms 116100 KB Output is correct
28 Correct 988 ms 116884 KB Output is correct
29 Correct 930 ms 120896 KB Output is correct
30 Correct 774 ms 130028 KB Output is correct
31 Correct 827 ms 95324 KB Output is correct
32 Correct 1105 ms 104584 KB Output is correct
33 Correct 888 ms 96068 KB Output is correct
34 Correct 912 ms 97292 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 534 ms 43904 KB Output is correct
37 Correct 2092 ms 130052 KB Output is correct
38 Correct 2151 ms 130116 KB Output is correct
39 Correct 1870 ms 123312 KB Output is correct
40 Correct 729 ms 62112 KB Output is correct
41 Correct 291 ms 33068 KB Output is correct
42 Correct 34 ms 7020 KB Output is correct
43 Correct 2109 ms 144604 KB Output is correct
44 Correct 1716 ms 136096 KB Output is correct
45 Correct 1563 ms 130008 KB Output is correct
46 Correct 1496 ms 130028 KB Output is correct
47 Correct 1153 ms 99140 KB Output is correct
48 Correct 1406 ms 130168 KB Output is correct
49 Correct 1406 ms 130032 KB Output is correct
50 Correct 1113 ms 96904 KB Output is correct
51 Correct 14 ms 4008 KB Output is correct
52 Correct 14 ms 4348 KB Output is correct
53 Correct 14 ms 4236 KB Output is correct
54 Correct 26 ms 4704 KB Output is correct
55 Correct 25 ms 4736 KB Output is correct
56 Correct 24 ms 4744 KB Output is correct
57 Correct 189 ms 46028 KB Output is correct
58 Correct 187 ms 39324 KB Output is correct
59 Correct 246 ms 37224 KB Output is correct
60 Correct 472 ms 43860 KB Output is correct
61 Correct 477 ms 43892 KB Output is correct
62 Correct 503 ms 43884 KB Output is correct
63 Correct 2239 ms 53180 KB Output is correct
64 Correct 2140 ms 53228 KB Output is correct
65 Correct 2148 ms 53308 KB Output is correct
66 Correct 292 ms 34556 KB Output is correct
67 Correct 333 ms 43244 KB Output is correct
68 Correct 346 ms 43232 KB Output is correct
69 Correct 353 ms 43228 KB Output is correct
70 Correct 362 ms 43252 KB Output is correct
71 Correct 343 ms 43244 KB Output is correct
72 Correct 336 ms 43248 KB Output is correct
73 Correct 348 ms 43332 KB Output is correct
74 Correct 347 ms 43232 KB Output is correct
75 Correct 1068 ms 127988 KB Output is correct
76 Correct 889 ms 117980 KB Output is correct
77 Correct 767 ms 138604 KB Output is correct
78 Correct 795 ms 120504 KB Output is correct
79 Correct 1352 ms 100060 KB Output is correct
80 Correct 815 ms 111316 KB Output is correct
81 Correct 1968 ms 131212 KB Output is correct
82 Correct 1951 ms 131080 KB Output is correct
83 Correct 1948 ms 131068 KB Output is correct
84 Correct 2043 ms 131460 KB Output is correct
85 Correct 2017 ms 131180 KB Output is correct
86 Correct 1914 ms 131180 KB Output is correct
87 Correct 2218 ms 130444 KB Output is correct
88 Execution timed out 3079 ms 124600 KB Time limit exceeded
89 Halted 0 ms 0 KB -