oj.uz

Submission #790888

# Submission time Handle Problem Language Result Execution time Memory
790888 2023-07-23T09:15:55 Z xetrk Circle selection (APIO18_circle_selection) C++14
57 / 100
 3000 ms 158060 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;
}

/*
inline ll Pos2ll(ll x , ll y)
{
    return y * 3000000001L + x;
}*/

map<ll, multiset<vector<ll>>> SetGrid(ll gridSize)
{
    map<ll, multiset<vector<ll>>> myGrid;
    ll x, y, r, i, posll;
    for (auto c = circleSet.begin(); c != circleSet.end(); c++)
    {
        x = (*c)[0], y = (*c)[1], r = (*c)[2], i = (*c)[3];
        //posll = Pos2ll(x / gridSize, y / gridSize);
        posll = (y / gridSize) * 3000000001L + (x / gridSize);
        //auto iter = myGrid.insert({ {x / gridSize, y / gridSize},{{x,y,r,i}} });
        auto iter = myGrid.insert({ posll ,{{x,y,r,i}} });
        if (iter.second == false)
        {
            //auto iter = myGrid.find(posll);
            iter.first->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
        //1000000000
        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<ll, multiset<vector<ll>>> gridAll = SetGrid(gridSize);

    ll gridX, gridY;
    ll nx, ny, nr, gridll, curll;
    int ni;

    multiset<vector<ll>> curGrids;
    

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

        if (gridSize / 2 >= sortRadius[curDelete].first * 2LL && gridSize/2 >= 1 )
        {
            gridSize /= 2;
            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 });
        //gridll = Pos2ll(gridX, gridY);
        gridll = gridY * 3000000001L + gridX;
        //(*gridAll.find({ gridX,gridY })).second.erase({ x,y,r,cur });
        (*gridAll.find(gridll)).second.erase({ x,y,r,cur });

        for (int curGridX = gridX - 1; curGridX <= gridX + 1; curGridX++)
        {
            for (int curGridY = gridY - 1; curGridY <= gridY + 1; curGridY++)
            {
                //curll = Pos2ll(curGridX, curGridY);
                curll = curGridY * 3000000001L + curGridX;

                //auto ggg = gridAll.find({ curGridX, curGridY });
                auto ggg = gridAll.find(curll);

                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:83:17: warning: unused variable 'r2' [-Wunused-variable]
   83 |     ll x, y, r, r2;
      |                 ^~
circle_selection.cpp:84:9: warning: unused variable 'i' [-Wunused-variable]
   84 |     int i;
      |         ^
circle_selection.cpp:106:14: warning: unused variable 'curcmp' [-Wunused-variable]
  106 |     int cur, curcmp;
      |              ^~~~~~
circle_selection.cpp:108:8: warning: unused variable 'rr' [-Wunused-variable]
  108 |     ll rr;
      |        ^~
circle_selection.cpp:85:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
circle_selection.cpp:89:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   89 |         scanf("%lld %lld %lld", &x, &y, &r);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 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 0 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 340 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 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 292 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 9 ms 2352 KB Output is correct
20 Correct 9 ms 2132 KB Output is correct
21 Correct 8 ms 2260 KB Output is correct
22 Correct 16 ms 2384 KB Output is correct
23 Correct 12 ms 2316 KB Output is correct
24 Correct 12 ms 2304 KB Output is correct
25 Correct 12 ms 2376 KB Output is correct
26 Correct 12 ms 2388 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 816 ms 109424 KB Output is correct
2 Correct 945 ms 110208 KB Output is correct
3 Correct 870 ms 114136 KB Output is correct
4 Correct 748 ms 123380 KB Output is correct
5 Correct 775 ms 90612 KB Output is correct
6 Correct 1179 ms 98608 KB Output is correct
7 Correct 847 ms 91188 KB Output is correct
8 Correct 875 ms 92472 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 650 ms 39636 KB Output is correct
3 Correct 2662 ms 118588 KB Output is correct
4 Correct 2609 ms 118428 KB Output is correct
5 Correct 2274 ms 145740 KB Output is correct
6 Correct 804 ms 70808 KB Output is correct
7 Correct 353 ms 32484 KB Output is correct
8 Correct 37 ms 6520 KB Output is correct
9 Correct 2819 ms 158060 KB Output is correct
10 Correct 2312 ms 152844 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1878 ms 118800 KB Output is correct
2 Correct 1617 ms 118740 KB Output is correct
3 Correct 1219 ms 92324 KB Output is correct
4 Correct 1656 ms 118724 KB Output is correct
5 Correct 1704 ms 118740 KB Output is correct
6 Correct 1195 ms 90336 KB Output is correct

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 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 0 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 340 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 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 292 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 9 ms 2352 KB Output is correct
20 Correct 9 ms 2132 KB Output is correct
21 Correct 8 ms 2260 KB Output is correct
22 Correct 16 ms 2384 KB Output is correct
23 Correct 12 ms 2316 KB Output is correct
24 Correct 12 ms 2304 KB Output is correct
25 Correct 12 ms 2376 KB Output is correct
26 Correct 12 ms 2388 KB Output is correct
27 Correct 15 ms 3852 KB Output is correct
28 Correct 14 ms 4064 KB Output is correct
29 Correct 14 ms 3852 KB Output is correct
30 Correct 27 ms 4460 KB Output is correct
31 Correct 26 ms 4364 KB Output is correct
32 Correct 25 ms 4448 KB Output is correct
33 Correct 214 ms 43272 KB Output is correct
34 Correct 235 ms 36472 KB Output is correct
35 Correct 258 ms 34468 KB Output is correct
36 Correct 637 ms 39900 KB Output is correct
37 Correct 660 ms 39896 KB Output is correct
38 Correct 561 ms 39892 KB Output is correct
39 Execution timed out 3050 ms 48304 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 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 0 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 340 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 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 292 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 9 ms 2352 KB Output is correct
20 Correct 9 ms 2132 KB Output is correct
21 Correct 8 ms 2260 KB Output is correct
22 Correct 16 ms 2384 KB Output is correct
23 Correct 12 ms 2316 KB Output is correct
24 Correct 12 ms 2304 KB Output is correct
25 Correct 12 ms 2376 KB Output is correct
26 Correct 12 ms 2388 KB Output is correct
27 Correct 816 ms 109424 KB Output is correct
28 Correct 945 ms 110208 KB Output is correct
29 Correct 870 ms 114136 KB Output is correct
30 Correct 748 ms 123380 KB Output is correct
31 Correct 775 ms 90612 KB Output is correct
32 Correct 1179 ms 98608 KB Output is correct
33 Correct 847 ms 91188 KB Output is correct
34 Correct 875 ms 92472 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 650 ms 39636 KB Output is correct
37 Correct 2662 ms 118588 KB Output is correct
38 Correct 2609 ms 118428 KB Output is correct
39 Correct 2274 ms 145740 KB Output is correct
40 Correct 804 ms 70808 KB Output is correct
41 Correct 353 ms 32484 KB Output is correct
42 Correct 37 ms 6520 KB Output is correct
43 Correct 2819 ms 158060 KB Output is correct
44 Correct 2312 ms 152844 KB Output is correct
45 Correct 1878 ms 118800 KB Output is correct
46 Correct 1617 ms 118740 KB Output is correct
47 Correct 1219 ms 92324 KB Output is correct
48 Correct 1656 ms 118724 KB Output is correct
49 Correct 1704 ms 118740 KB Output is correct
50 Correct 1195 ms 90336 KB Output is correct
51 Correct 15 ms 3852 KB Output is correct
52 Correct 14 ms 4064 KB Output is correct
53 Correct 14 ms 3852 KB Output is correct
54 Correct 27 ms 4460 KB Output is correct
55 Correct 26 ms 4364 KB Output is correct
56 Correct 25 ms 4448 KB Output is correct
57 Correct 214 ms 43272 KB Output is correct
58 Correct 235 ms 36472 KB Output is correct
59 Correct 258 ms 34468 KB Output is correct
60 Correct 637 ms 39900 KB Output is correct
61 Correct 660 ms 39896 KB Output is correct
62 Correct 561 ms 39892 KB Output is correct
63 Execution timed out 3050 ms 48304 KB Time limit exceeded
64 Halted 0 ms 0 KB -