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답안 #773148

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
773148 2023-07-04T15:46:49 Z xetrk 원 고르기 (APIO18_circle_selection) C++14
37 / 100
 3000 ms 34224 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;
	ll rr;

	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];
		if (curDelete < n - 1)
			r2 = r + sortRadius[curDelete + 1].first + 1;
		else
			r2 = r * 2 + 1;
		
		// 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)
		{
			for (int i = xMax; i >= xMin; i--)
			{
				curcmp = sortX[i].second;
				if (ans[curcmp] != -1) continue;
				rr = r + circle[curcmp][2];
				if (GetDist(x, y, circle[curcmp][0], circle[curcmp][1]) <= rr * rr)
				{
					ans[curcmp] = cur;
					sortX.erase(sortX.begin() + i);
				}
			}
		}
		else
		{

			for (int i = yMax; i >= yMin; i--)
			{
				curcmp = sortY[i].second;
				if (ans[curcmp]!= -1) continue;
				rr = r + circle[curcmp][2];
				if (GetDist(x, y, circle[curcmp][0], circle[curcmp][1]) <= rr * rr)
				{
					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:95:12: 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]
   95 |   if (xMin >= sortX.size()) xMin = sortX.size() - 1;
      |       ~~~~~^~~~~~~~~~~~~~~
circle_selection.cpp:96:12: 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]
   96 |   if (yMin >= sortY.size()) yMin = sortY.size() - 1;
      |       ~~~~~^~~~~~~~~~~~~~~
circle_selection.cpp:97:12: 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]
   97 |   if (xMax >= sortX.size()) xMax = sortX.size() - 1;
      |       ~~~~~^~~~~~~~~~~~~~~
circle_selection.cpp:98:12: 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]
   98 |   if (yMax >= sortY.size()) yMax = sortY.size() - 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

# 결과 실행 시간 메모리 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 1 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
14 Correct 1 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 1056 KB Output is correct
21 Correct 7 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 1076 KB Output is correct
25 Correct 6 ms 980 KB Output is correct
26 Correct 5 ms 980 KB Output is correct

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 591 ms 34224 KB Output is correct
2 Execution timed out 3067 ms 33064 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 223 ms 11540 KB Output is correct
3 Correct 991 ms 33944 KB Output is correct
4 Correct 962 ms 33928 KB Output is correct
5 Execution timed out 3088 ms 33076 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 630 ms 34108 KB Output is correct
2 Correct 464 ms 34048 KB Output is correct
3 Execution timed out 3069 ms 33200 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #5
30.0 / 30.0

# 결과 실행 시간 메모리 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 1 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
14 Correct 1 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 1056 KB Output is correct
21 Correct 7 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 1076 KB Output is correct
25 Correct 6 ms 980 KB Output is correct
26 Correct 5 ms 980 KB Output is correct
27 Correct 7 ms 1484 KB Output is correct
28 Correct 7 ms 1544 KB Output is correct
29 Correct 7 ms 1532 KB Output is correct
30 Correct 11 ms 1544 KB Output is correct
31 Correct 11 ms 1532 KB Output is correct
32 Correct 11 ms 1524 KB Output is correct
33 Correct 70 ms 11456 KB Output is correct
34 Correct 69 ms 11472 KB Output is correct
35 Correct 305 ms 11420 KB Output is correct
36 Correct 138 ms 11396 KB Output is correct
37 Correct 139 ms 11420 KB Output is correct
38 Correct 192 ms 11372 KB Output is correct
39 Correct 2258 ms 11400 KB Output is correct
40 Correct 2281 ms 11396 KB Output is correct
41 Correct 2390 ms 11396 KB Output is correct
42 Correct 1901 ms 11384 KB Output is correct
43 Correct 436 ms 11392 KB Output is correct
44 Correct 434 ms 11400 KB Output is correct
45 Correct 435 ms 11392 KB Output is correct
46 Correct 459 ms 11392 KB Output is correct
47 Correct 443 ms 11392 KB Output is correct
48 Correct 411 ms 11392 KB Output is correct
49 Correct 457 ms 11392 KB Output is correct
50 Correct 463 ms 11396 KB Output is correct

Subtask #6
0 / 13.0

# 결과 실행 시간 메모리 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 1 ms 212 KB Output is correct
6 Correct 1 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 0 ms 212 KB Output is correct
14 Correct 1 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 1056 KB Output is correct
21 Correct 7 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 1076 KB Output is correct
25 Correct 6 ms 980 KB Output is correct
26 Correct 5 ms 980 KB Output is correct
27 Correct 591 ms 34224 KB Output is correct
28 Execution timed out 3067 ms 33064 KB Time limit exceeded
29 Halted 0 ms 0 KB -