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Submission #773086

# Submission time Handle Problem Language Result Execution time Memory
773086 2023-07-04T14:54:47 Z xetrk Circle selection (APIO18_circle_selection) C++14
87 / 100
 3000 ms 34116 KB 
#pragma warning(disable:4996)

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


typedef long long ll;
typedef long double ld;

int n;

vector<vector<ll>> circle;

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

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;
}

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

	for (int i = 0; i < n; i++)
	{
		scanf("%lld %lld %lld", &x, &y, &r);
		//x = 1, y = 1, r = 3;
		circle.push_back({ x,y,r });
		sortRadius.push_back({ r,i });
		sortX.push_back({ x,i });
		sortY.push_back({ y,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;

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

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


		x = circle[cur][0], y = circle[cur][1], r = circle[cur][2];
		r2 = r * 2 + 2;
		
		// a이하를 찾아야하는데 lower bound는  a이상인걸 찾으니까.. 근데 그 이하인걸 찾아야하니 1빼줌
		xMin = lower_bound(sortX.begin(), sortX.end(), pair<ll, int>(x - r2, -1), comp) - sortX.begin();
		xMax = upper_bound(sortX.begin(), sortX.end(), pair<ll, int>(x + r2, 301000), comp) - sortX.begin();

		yMin = lower_bound(sortY.begin(), sortY.end(), pair<ll, int>(y - r2, -1), comp) - sortY.begin();
		yMax = upper_bound(sortY.begin(), sortY.end(), pair<ll, int>(y + r2, 301000), comp) - sortY.begin();

		xMin--;
		yMin--;

		if (xMin < 0) xMin = 0;
		if (yMin < 0) yMin = 0;

		if (xMin >= sortX.size()) xMin = sortX.size() - 1;
		if (yMin >= sortY.size()) yMin = sortY.size() - 1;
		if (xMax >= sortX.size()) xMax = sortX.size() - 1;
		if (yMax >= sortY.size()) yMax = sortY.size() - 1;

		//xMin = 0, yMin = 0, xMax = n - 1, yMax = n - 1;


		ans[cur] = cur;

		if (xMax - xMin < yMax - yMin)
		{
			curcmp = sortX[max(0, xMin - 1)].second;
			int beforeX = circle[curcmp][0];

			/*
			for (int i = xMin; i >= 0; i--)
			{
				curcmp = sortX[i].second;
				if (beforeX > circle[curcmp][0])
					break;
				if (ans[curcmp] != -1) continue;
				if (GetDist(x, y, circle[curcmp][0], circle[curcmp][1]) <= (ll)(((r + circle[curcmp][2]) * (r + circle[curcmp][2]))))
					ans[curcmp] = cur;

			}*/
			for (int i = xMax; i >= xMin; i--)
			{
				curcmp = sortX[i].second;
				if (ans[curcmp] != -1) continue;
				if (GetDist(x, y, circle[curcmp][0], circle[curcmp][1]) <= (ll)(((r + circle[curcmp][2]) * (r + circle[curcmp][2]))))
				{
					ans[curcmp] = cur;
					//sortX.erase(sortX.begin() + i);
				}
			}
		}
		else
		{
			curcmp = sortY[max(0, yMin - 1)].second;
			int beforeY = circle[curcmp][1];


			//for (int i = yMin; i >= 0; i--)
			//{
			//	curcmp = sortY[i].second;
			//	if (beforeY > circle[curcmp][1])
			//		break;
			//	if (ans[curcmp] != -1) continue;
			//	if (GetDist(x, y, circle[curcmp][0], circle[curcmp][1]) <= (ll)(((r + circle[curcmp][2]) * (r + circle[curcmp][2]))))
			//		ans[curcmp] = cur;

			//}


			for (int i = yMax; i >= yMin; i--)
			{
				curcmp = sortY[i].second;
				if (ans[curcmp]!= -1) continue;
				if (GetDist(x, y, circle[curcmp][0], circle[curcmp][1]) <= (ll)(((r + circle[curcmp][2]) * (r + circle[curcmp][2]))))
				{
					ans[curcmp] = cur;
					//sortY.erase(sortY.begin() + i);
				}
			}
		}
	}

	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:91:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |   if (xMin >= sortX.size()) xMin = sortX.size() - 1;
      |       ~~~~~^~~~~~~~~~~~~~~
circle_selection.cpp:92:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   92 |   if (yMin >= sortY.size()) yMin = sortY.size() - 1;
      |       ~~~~~^~~~~~~~~~~~~~~
circle_selection.cpp:93:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   93 |   if (xMax >= sortX.size()) xMax = sortX.size() - 1;
      |       ~~~~~^~~~~~~~~~~~~~~
circle_selection.cpp:94:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |   if (yMax >= sortY.size()) yMax = sortY.size() - 1;
      |       ~~~~~^~~~~~~~~~~~~~~
circle_selection.cpp:104:8: warning: unused variable 'beforeX' [-Wunused-variable]
  104 |    int beforeX = circle[curcmp][0];
      |        ^~~~~~~
circle_selection.cpp:131:8: warning: unused variable 'beforeY' [-Wunused-variable]
  131 |    int beforeY = circle[curcmp][1];
      |        ^~~~~~~
circle_selection.cpp:46:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
circle_selection.cpp:50:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |   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 0 ms 212 KB Output is correct
3 Correct 1 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 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 3 ms 980 KB Output is correct
20 Correct 4 ms 980 KB Output is correct
21 Correct 4 ms 980 KB Output is correct
22 Correct 5 ms 980 KB Output is correct
23 Correct 5 ms 980 KB Output is correct
24 Correct 5 ms 980 KB Output is correct
25 Correct 5 ms 980 KB Output is correct
26 Correct 5 ms 980 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 221 ms 34072 KB Output is correct
2 Correct 208 ms 34032 KB Output is correct
3 Correct 213 ms 33800 KB Output is correct
4 Correct 194 ms 34052 KB Output is correct
5 Correct 210 ms 33856 KB Output is correct
6 Correct 261 ms 33984 KB Output is correct
7 Correct 243 ms 33884 KB Output is correct
8 Correct 231 ms 34000 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 183 ms 11384 KB Output is correct
3 Correct 861 ms 33960 KB Output is correct
4 Correct 868 ms 33920 KB Output is correct
5 Correct 1069 ms 33140 KB Output is correct
6 Correct 288 ms 17792 KB Output is correct
7 Correct 97 ms 9400 KB Output is correct
8 Correct 16 ms 2312 KB Output is correct
9 Correct 894 ms 34024 KB Output is correct
10 Correct 1488 ms 33980 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 567 ms 33940 KB Output is correct
2 Correct 447 ms 34036 KB Output is correct
3 Correct 861 ms 33552 KB Output is correct
4 Correct 472 ms 33944 KB Output is correct
5 Correct 515 ms 33948 KB Output is correct
6 Correct 417 ms 33268 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 0 ms 212 KB Output is correct
3 Correct 1 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 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 3 ms 980 KB Output is correct
20 Correct 4 ms 980 KB Output is correct
21 Correct 4 ms 980 KB Output is correct
22 Correct 5 ms 980 KB Output is correct
23 Correct 5 ms 980 KB Output is correct
24 Correct 5 ms 980 KB Output is correct
25 Correct 5 ms 980 KB Output is correct
26 Correct 5 ms 980 KB Output is correct
27 Correct 7 ms 1544 KB Output is correct
28 Correct 7 ms 1484 KB Output is correct
29 Correct 7 ms 1544 KB Output is correct
30 Correct 11 ms 1488 KB Output is correct
31 Correct 11 ms 1484 KB Output is correct
32 Correct 11 ms 1544 KB Output is correct
33 Correct 70 ms 11384 KB Output is correct
34 Correct 69 ms 11460 KB Output is correct
35 Correct 70 ms 11460 KB Output is correct
36 Correct 176 ms 11400 KB Output is correct
37 Correct 158 ms 11416 KB Output is correct
38 Correct 151 ms 11444 KB Output is correct
39 Correct 511 ms 11396 KB Output is correct
40 Correct 562 ms 11392 KB Output is correct
41 Correct 536 ms 11400 KB Output is correct
42 Correct 228 ms 11412 KB Output is correct
43 Correct 110 ms 11396 KB Output is correct
44 Correct 115 ms 11400 KB Output is correct
45 Correct 113 ms 11476 KB Output is correct
46 Correct 112 ms 11388 KB Output is correct
47 Correct 113 ms 11388 KB Output is correct
48 Correct 111 ms 11352 KB Output is correct
49 Correct 111 ms 11396 KB Output is correct
50 Correct 124 ms 11432 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 0 ms 212 KB Output is correct
3 Correct 1 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 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 3 ms 980 KB Output is correct
20 Correct 4 ms 980 KB Output is correct
21 Correct 4 ms 980 KB Output is correct
22 Correct 5 ms 980 KB Output is correct
23 Correct 5 ms 980 KB Output is correct
24 Correct 5 ms 980 KB Output is correct
25 Correct 5 ms 980 KB Output is correct
26 Correct 5 ms 980 KB Output is correct
27 Correct 221 ms 34072 KB Output is correct
28 Correct 208 ms 34032 KB Output is correct
29 Correct 213 ms 33800 KB Output is correct
30 Correct 194 ms 34052 KB Output is correct
31 Correct 210 ms 33856 KB Output is correct
32 Correct 261 ms 33984 KB Output is correct
33 Correct 243 ms 33884 KB Output is correct
34 Correct 231 ms 34000 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 183 ms 11384 KB Output is correct
37 Correct 861 ms 33960 KB Output is correct
38 Correct 868 ms 33920 KB Output is correct
39 Correct 1069 ms 33140 KB Output is correct
40 Correct 288 ms 17792 KB Output is correct
41 Correct 97 ms 9400 KB Output is correct
42 Correct 16 ms 2312 KB Output is correct
43 Correct 894 ms 34024 KB Output is correct
44 Correct 1488 ms 33980 KB Output is correct
45 Correct 567 ms 33940 KB Output is correct
46 Correct 447 ms 34036 KB Output is correct
47 Correct 861 ms 33552 KB Output is correct
48 Correct 472 ms 33944 KB Output is correct
49 Correct 515 ms 33948 KB Output is correct
50 Correct 417 ms 33268 KB Output is correct
51 Correct 7 ms 1544 KB Output is correct
52 Correct 7 ms 1484 KB Output is correct
53 Correct 7 ms 1544 KB Output is correct
54 Correct 11 ms 1488 KB Output is correct
55 Correct 11 ms 1484 KB Output is correct
56 Correct 11 ms 1544 KB Output is correct
57 Correct 70 ms 11384 KB Output is correct
58 Correct 69 ms 11460 KB Output is correct
59 Correct 70 ms 11460 KB Output is correct
60 Correct 176 ms 11400 KB Output is correct
61 Correct 158 ms 11416 KB Output is correct
62 Correct 151 ms 11444 KB Output is correct
63 Correct 511 ms 11396 KB Output is correct
64 Correct 562 ms 11392 KB Output is correct
65 Correct 536 ms 11400 KB Output is correct
66 Correct 228 ms 11412 KB Output is correct
67 Correct 110 ms 11396 KB Output is correct
68 Correct 115 ms 11400 KB Output is correct
69 Correct 113 ms 11476 KB Output is correct
70 Correct 112 ms 11388 KB Output is correct
71 Correct 113 ms 11388 KB Output is correct
72 Correct 111 ms 11352 KB Output is correct
73 Correct 111 ms 11396 KB Output is correct
74 Correct 124 ms 11432 KB Output is correct
75 Correct 237 ms 33800 KB Output is correct
76 Correct 227 ms 34048 KB Output is correct
77 Correct 253 ms 34048 KB Output is correct
78 Correct 229 ms 33724 KB Output is correct
79 Correct 293 ms 33980 KB Output is correct
80 Correct 226 ms 33792 KB Output is correct
81 Correct 735 ms 33916 KB Output is correct
82 Correct 721 ms 33948 KB Output is correct
83 Correct 719 ms 33992 KB Output is correct
84 Correct 1196 ms 33940 KB Output is correct
85 Correct 767 ms 33948 KB Output is correct
86 Correct 660 ms 34116 KB Output is correct
87 Correct 852 ms 33948 KB Output is correct
88 Execution timed out 3078 ms 33132 KB Time limit exceeded
89 Halted 0 ms 0 KB -