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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#862933#9678. 网友小 Z 的树linjunye0 4ms14840kbC++14761b2025-01-19 11:02:162025-01-19 11:02:38

Judging History

你现在查看的是最新测评结果

  • [2025-01-19 11:02:38]
  • 评测
  • 测评结果:0
  • 用时:4ms
  • 内存:14840kb
  • [2025-01-19 11:02:16]
  • 提交

answer

#include<bits/stdc++.h>
#include "diameter.h"
using namespace std;
int cal(int x,int y,int n){
	int d=1e9;
	int _=0;
	for(int i=1;i<=n;i++){
		if(i==x||i==y)continue;
		int dd=query(x,y,i);
		if(dd<d){
			d=dd;
			_=i;
		}
	}
	if(!in(_,x,y))d=1;
	while(d>1){
		for(int i=1;i<=n;i++){
			if(i==x||i==y)continue;
			int dd=query(x,y,i);
			if(dd<=d){
				d=dd;
				y=i;
				break;
			}
		}
	}
	int mx=0;
	int u=y;
	for(int i=1;i<=n;i++){
		if(i==x||i==y)continue;
		int dd=query(i,x,y);
		if(dd>mx){
			mx=dd;
			u=i;
		}
	}
	return u;
}
std::pair<int, int> find_diameter(int subid, int n) {
	if(n==1)return make_pair(1,1);
	if(n==2)return make_pair(1,2);
	int u=cal(1,2,n);
	int v=cal(u,2,n);
	return make_pair(u,v);
}

Details

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Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 4ms
memory: 14840kb

input:

1 100
25
1 3
2 18
3 8
4 18
5 14
6 22
7 18
8 10
9 11
10 12
11 25
12 16
13 11
14 17
15 17
16 25
17 2
18 20
19 18
20 12
21 1
22 17
23 14
24 1
50
1 37
2 27
3 10
4 25
5 16
6 17
7 10
8 36
9 16
10 6
11 48
12 2
13 28
14 30
15 10
16 44
17 31
18 1
19 6
20 7
21 30
22 42
23 45
24 23
25 27
26 39
27 45
28 48
29 4...

output:

WA

result:

wrong answer Wrong Answer

Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 0
Skipped

Dependency #2:

0%

Subtask #4:

score: 0
Skipped

Dependency #3:

0%

Subtask #5:

score: 0
Skipped

Dependency #4:

0%

Subtask #6:

score: 0
Skipped

Dependency #5:

0%

Subtask #7:

score: 0
Skipped

Dependency #6:

0%

Subtask #8:

score: 0
Skipped

Dependency #7:

0%

Subtask #9:

score: 0
Skipped

Dependency #8:

0%

Subtask #10:

score: 0
Skipped

Dependency #9:

0%

Subtask #11:

score: 0
Skipped

Dependency #1:

0%