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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#22024#2838. 2D GeometrygogoWA 51ms5760kbC++201.0kb2022-03-08 22:10:162022-04-30 00:41:33

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.
  • [2022-04-30 00:41:33]
  • 评测
  • 测评结果:WA
  • 用时:51ms
  • 内存:5760kb
  • [2022-03-08 22:10:16]
  • 提交

answer

#include<iostream>
#include<cstdio>
#include<cstring>
#include<cstdlib>
#include<algorithm>
#define int long long
#define mod 998244353
using namespace std;
inline int read()
{
	int n=0,f=1,ch=getchar();
	while(ch<'0'||ch>'9')
	{
		if(ch=='-')f=-1;
		ch=getchar();
	}
	while(ch>='0'&&ch<='9')
	{
		n=n*10+ch-'0';
		ch=getchar();
	}
	return n*f;
}
int tx[200005],ty[200005];
signed main()
{
	int n,x,y,sl;
	bool flag;
	srand(time(0));
	while(cin>>n)
	{
		for(int i=1;i<=n;i++)
		{
			tx[i]=read();
			ty[i]=read();
		}
		if(n==1)
		{
			printf("1\n");
			continue;
		}
		flag=false;
		for(int i=1;i<=8;i++)
		{
			x=1LL*rand()*rand()%n+1;
			y=1LL*rand()*rand()%n+1;
			while(y==x)y=1LL*rand()*rand()%n+1;
			sl=0;
			for(int j=1;j<=n;j++)
			{
				if((tx[x]-tx[y])*(ty[j]-ty[x])-(ty[x]-ty[y])*(tx[j]-tx[x])==0)
				{
					sl++;
				}
			}
			if(sl>2*(n-sl))
			{
				//printf("%lld %lld\n",x,y);
				printf("%lld\n",sl*3-2*n);
				flag=true;
				break;
			}
		}
		if(flag==false)printf("%lld\n",n%3);
	}
}

詳細信息

Test #1:

score: 100
Accepted
time: 2ms
memory: 5760kb

input:

3
0 0
0 1
0 2
3
0 0
0 1
1 0
6
0 0
0 1
0 2
0 3
1 1
1 2

output:

3
0
0

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 4ms
memory: 3664kb

input:

1
0 0
2
0 0
1 1
3
0 0
0 1
0 2
3
0 0
0 1
1 0
4
3 0
0 2
3 3
3 1
4
2 3
1 1
0 3
0 2
4
0 0
0 3
0 2
0 1
5
8 6
9 2
2 3
7 4
1 5
5
2 2
4 2
6 2
7 2
0 4
5
3 7
5 4
4 4
9 4
9 9
5
5 4
5 9
5 5
4 3
1 0
5
3 2
1 2
7 2
6 2
5 2
6
7 2
7 9
0 3
8 8
4 4
3 8
6
2 8
2 5
3 5
3 8
2 0
0 2
6
2 3
8 4
2 9
2 2
2 6
4 9
6
2 1
7 6
6 5
...

output:

1
2
3
0
1
1
4
2
2
2
2
5
0
0
0
0
0
0
0
3
0
6

result:

ok 22 lines

Test #3:

score: 0
Accepted
time: 1ms
memory: 3580kb

input:

7
0 1
0 0
7 7
6 2
6 9
4 4
3 5
7
3 7
3 2
9 1
0 6
1 8
5 0
9 5
7
3 7
2 3
4 5
6 7
7 7
5 8
4 7
7
1 6
5 7
7 2
3 5
0 8
8 8
3 8
7
1 8
3 4
8 8
1 9
7 8
1 7
0 0
7
6 9
2 7
4 5
2 1
4 6
2 3
7 6
7
3 1
1 9
5 7
6 6
5 2
5 1
5 3
7
6 4
1 6
7 3
5 4
2 3
0 0
3 2
7
2 9
4 9
8 9
8 0
1 7
2 6
6 2
7
3 5
4 0
4 1
4 3
0 8
4 7
4 6
...

output:

1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
1
1
1
1
1

result:

ok 21 lines

Test #4:

score: 0
Accepted
time: 5ms
memory: 5628kb

input:

8
3 2
4 4
3 9
7 9
9 3
9 1
4 2
5 3
8
0 6
0 2
1 6
9 9
5 5
8 4
6 8
0 9
8
1 8
8 1
9 0
1 3
6 4
3 6
4 0
1 6
8
5 3
1 0
0 1
7 1
3 7
8 8
6 4
6 2
8
3 3
7 8
0 8
6 3
0 4
2 3
5 3
5 4
8
6 2
9 7
3 2
6 5
2 2
1 5
4 7
2 5
8
1 1
1 0
1 5
2 8
8 9
8 8
0 0
1 4
8
8 0
3 3
8 2
5 5
3 0
0 0
6 2
8 9
8
3 9
3 5
3 1
6 5
6 2
1 1
8 ...

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
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2

result:

ok 57 lines

Test #5:

score: 0
Accepted
time: 5ms
memory: 3712kb

input:

9
14 16
8 14
18 19
0 10
5 9
0 5
1 2
12 9
15 11
9
16 12
3 9
10 14
17 14
6 10
2 19
17 17
0 13
7 2
9
17 1
14 13
5 14
9 2
13 0
1 18
17 13
11 3
5 13
9
13 0
13 3
5 4
6 14
3 5
17 14
5 17
19 17
5 6
9
3 18
18 9
14 14
6 4
17 10
16 15
8 14
10 14
18 16
9
17 10
19 19
1 16
18 17
9 13
10 15
19 3
6 16
17 16
9
13 2
...

output:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

result:

ok 86 lines

Test #6:

score: -100
Wrong Answer
time: 51ms
memory: 3716kb

input:

17
87310293 387438180
71556828 322852519
229718797 511837973
310313906 370688881
259858018 463145945
252802375 462493335
347775953 550587600
68053426 326582700
386313403 373022317
211296869 571386994
138237064 241008526
196230475 364801713
327348063 266915603
238976759 498766159
215667837 559919342
...

output:

2
1
0
1
2
2
2
1
2
1
2
4
1
1
2
1
12
1
0
4
2
1
1
6
2
1
0
0
2
2
2
3
1
2
0
2
1
0
13
1
0
1
4
2
1
2
2
8
1
0
1
0
0
0
2
3
1
9
0
2
0
2
20
7
2
8
1
0
8
0
3
7
0
8
14
1
0
2
2
3
0
0
1
1
15
1
1
1
0
2
2
2
4
1
1
1
1
1
0
2
2
11
2
0
0
2
1
8
2
5
0
2
1
0
0
1
8
2
1
0
0
1
1
0
1
9
1
2
7
1
4
7
0
0
1
0
0
0
2
2
2
18
1
2
0
0
0...

result:

wrong answer 1431st lines differ - expected: '3', found: '0'