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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#102694#5251. Constellationscsw_ccc#WA 4959ms15736kbC++142.7kb2023-05-03 16:12:072023-05-03 16:12:11

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-05-03 16:12:11]
  • 评测
  • 测评结果:WA
  • 用时:4959ms
  • 内存:15736kb
  • [2023-05-03 16:12:07]
  • 提交

answer

#include <iostream>
#include <cstring>
#include <map>
#include <cstdio>
#include <queue>
#include <algorithm>
#define ll long long
using namespace std;

const int maxn = 3000+5;

struct point
{
	ll yy, xx;
	ll x, y;
	int num;

	void show()
	{
		printf("yy:%lld y:%lld; xx:%lld x:%lld. num:%d\n",yy,y,xx,x,num);
	}
};

point poi[maxn*maxn];

struct line
{
	int a, b;
	int num;
	ll dis;
	line(int _a, int _b, ll _dis)
	{
		a = _a;
		b = _b;
		dis = _dis;
		num = poi[_a].num * poi[_b].num;
	}
};

int n;
int cnt;

template<class T>
inline void read(T &x);

void init()
{
    read(n);
	for (int i = 1; i <= n; i++)
	{
		read (poi[i].x); read(poi[i].y);
		poi[i].xx = poi[i].x * poi[i].x;
		poi[i].yy = poi[i].y * poi[i].y;
		poi[i].num = 1;
	}
	cnt = n;
}

int head, tail;
int q[maxn * maxn];
bool used[maxn*maxn];

inline ll getDis(int i, int j)
{
	ll dy = poi[i].yy * poi[j].num + poi[j].yy * poi[i].num - 2 * poi[i].y * poi[j].y;
	ll dx = poi[i].xx * poi[j].num + poi[j].xx * poi[i].num - 2 * poi[i].x * poi[j].x;

	return (dy + dx);
}

inline bool com(const line &l1, const line &l2)
{
	if (l1.dis * l2.num != l2.dis * l1.num)
		return l1.dis * l2.num  < l2.dis * l1.num;
	
	if (max(l1.a, l1.b) != max(l2.a, l2.b))
		return max(l1.a, l1.b) < max(l2.a, l2.b);

	return min(l1.a, l1.b) < min(l2.a, l2.b);
}

void work()
{
    for (int i = 1; i <= n; i++) q[i] = i;

	head = 1; tail = n;

	while (head != tail)
	{
		line Min_line(q[head], q[head+1], getDis(q[head], q[head+1]));
		for (int i = head; i <= tail; i++)
		for (int j = i + 1; j <= tail; j++)
		{
			line now(q[i], q[j], getDis(q[i],q[j]));

			if (!com(Min_line, now)) Min_line = now;
		}

		int pre_tail = tail;
		for (; head <= pre_tail; head++)
		{
			if (q[head] == Min_line.a || q[head] == Min_line.b) continue;
			q[++tail] = q[head];
		}

		// cout << Min_line.a << ' ' << Min_line.b << endl;
		cnt++;
		poi[cnt].num = poi[Min_line.a].num + poi[Min_line.b].num;
		poi[cnt].yy = poi[Min_line.a].yy + poi[Min_line.b].yy;
		poi[cnt].y = poi[Min_line.a].y + poi[Min_line.b].y;
		poi[cnt].x = poi[Min_line.a].x + poi[Min_line.b].x;
		poi[cnt].xx = poi[Min_line.a].xx + poi[Min_line.b].xx;
		// poi[cnt].show();
		q[++tail] = cnt;

		cout << poi[cnt].num << endl;
	}
}

void print()
{

}

int main()
{
 //  freopen("test.in","r",stdin);
//    freopen("test.out","w",stdout);

    init();
    work();
    print();

    return 0;
}

template<class T>
inline void read(T &x)
{
    x = 0; T s = 1;
    char c = getchar();
    while(c < '0' || c > '9') {if(c == '-') s = -1; c = getchar();}
    while(c >= '0' && c <= '9') {x = x*10+c-'0'; c = getchar();}
    x *= s;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 2ms
memory: 7348kb

input:

2
0 0
1 0

output:

2

result:

ok single line: '2'

Test #2:

score: 0
Accepted
time: 4650ms
memory: 15736kb

input:

2000
1000 -1000
1000 -999
1000 -998
1000 -997
1000 -996
1000 -995
1000 -994
1000 -993
1000 -992
1000 -991
1000 -990
1000 -989
1000 -988
1000 -987
1000 -986
1000 -985
1000 -984
1000 -983
1000 -982
1000 -981
1000 -980
1000 -979
1000 -978
1000 -977
1000 -976
1000 -975
1000 -974
1000 -973
1000 -972
1000...

output:

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
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2
2
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2
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2
2
2
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2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
...

result:

ok 1999 lines

Test #3:

score: 0
Accepted
time: 4649ms
memory: 15544kb

input:

2000
-1000 1000
-999 1000
-998 1000
-997 1000
-996 1000
-995 1000
-994 1000
-993 1000
-992 1000
-991 1000
-990 1000
-989 1000
-988 1000
-987 1000
-986 1000
-985 1000
-984 1000
-983 1000
-982 1000
-981 1000
-980 1000
-979 1000
-978 1000
-977 1000
-976 1000
-975 1000
-974 1000
-973 1000
-972 1000
-971...

output:

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
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2
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2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
...

result:

ok 1999 lines

Test #4:

score: 0
Accepted
time: 4687ms
memory: 15732kb

input:

2000
-1000 -1000
-999 -1000
-998 -1000
-997 -1000
-996 -1000
-995 -1000
-994 -1000
-993 -1000
-992 -1000
-991 -1000
-990 -1000
-989 -1000
-988 -1000
-987 -1000
-986 -1000
-985 -1000
-984 -1000
-983 -1000
-982 -1000
-981 -1000
-980 -1000
-979 -1000
-978 -1000
-977 -1000
-976 -1000
-975 -1000
-974 -10...

output:

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
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2
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2
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2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
...

result:

ok 1999 lines

Test #5:

score: 0
Accepted
time: 4676ms
memory: 15736kb

input:

2000
-1000 -1000
-1000 -999
-1000 -998
-1000 -997
-1000 -996
-1000 -995
-1000 -994
-1000 -993
-1000 -992
-1000 -991
-1000 -990
-1000 -989
-1000 -988
-1000 -987
-1000 -986
-1000 -985
-1000 -984
-1000 -983
-1000 -982
-1000 -981
-1000 -980
-1000 -979
-1000 -978
-1000 -977
-1000 -976
-1000 -975
-1000 -9...

output:

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
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2
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2
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2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
...

result:

ok 1999 lines

Test #6:

score: 0
Accepted
time: 4704ms
memory: 13740kb

input:

2000
1000 -250
1000 -249
1000 -248
1000 -247
1000 -246
1000 -245
1000 -244
1000 -243
1000 -242
1000 -241
1000 -240
1000 -239
1000 -238
1000 -237
1000 -236
1000 -235
1000 -234
1000 -233
1000 -232
1000 -231
1000 -230
1000 -229
1000 -228
1000 -227
1000 -226
1000 -225
1000 -224
1000 -223
1000 -222
1000 ...

output:

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
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2
2
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2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
...

result:

ok 1999 lines

Test #7:

score: 0
Accepted
time: 4718ms
memory: 15660kb

input:

2000
0 -1000
0 -999
0 -998
0 -997
0 -996
0 -995
0 -994
0 -993
0 -992
0 -991
0 -990
0 -989
0 -988
0 -987
0 -986
0 -985
0 -984
0 -983
0 -982
0 -981
0 -980
0 -979
0 -978
0 -977
0 -976
0 -975
0 -974
0 -973
0 -972
0 -971
0 -970
0 -969
0 -968
0 -967
0 -966
0 -965
0 -964
0 -963
0 -962
0 -961
0 -960
0 -959
...

output:

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
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2
2
2
2
2
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2
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2
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2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
...

result:

ok 1999 lines

Test #8:

score: -100
Wrong Answer
time: 4959ms
memory: 15676kb

input:

2000
-400 571
-725 636
-880 529
-657 372
-383 382
-746 888
-604 785
-497 557
-677 977
-562 917
-530 623
-636 535
-816 579
-633 428
-573 561
-496 479
-409 448
-570 379
-421 795
-827 865
-730 809
-423 984
-676 772
-398 816
-451 373
-756 777
-351 829
-954 345
-543 871
-595 521
-501 734
-378 769
-987 60...

output:

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
2
2
2
2
2
2
2
2
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
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2
2
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2
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2
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2
2
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2
2
2
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2
2
2
2
2
2
2
3
2
2
2
2
2
2
2
2
2
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
2
2
2
2
2
2
2
2
2
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
2
...

result:

wrong answer 227th lines differ - expected: '3', found: '2'