CSES - NOI 2019 Open - Results
Submission details
Task:Distance Code
Sender:erimm
Submission time:2019-03-09 15:12:19 +0200
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#20.02 s1, 2, 3details
#30.02 s1, 2, 3details
#40.03 s1, 2, 3details
#50.01 s1, 2, 3details
#60.02 s1, 2, 3details
#70.02 s1, 2, 3details
#80.01 s1, 2, 3details
#90.01 s1, 2, 3details
#100.03 s1, 2, 3details
#110.02 s1, 2, 3details
#120.03 s2, 3details
#130.02 s2, 3details
#140.01 s2, 3details
#150.01 s2, 3details
#16--3details
#17--3details
#18--3details
#19--3details
#200.02 s1, 2, 3details

Code

/*
 * src.cpp
 *
 *  Created on: 9. mar. 2019
 *      Author: mingj
 */
#include <bits/stdc++.h>

using namespace std;

struct node {
	vector<int> edge;
	int total;
};

int main () {
	int t;
	cin>>t;
	if(t==1) {
		int n;
		cin>>n;
		vector<node> tree(n);
		vector<bool> leaf(n,true);
		for(int i=0; i<n; i++){
			tree[i].total=0;
		}
		int a,b;
		for(int i=0; i<n-1; i++){
			cin>>a>>b;
			a=a-1;
			b=b-1;
			tree[a].edge.push_back(b);
			tree[b].edge.push_back(a);
			if(tree[a].edge.size()>1)
				leaf[a]=false;
			if(tree[b].edge.size()>1)
				leaf[b]=false;
			tree[a].total++;
			tree[b].total++;
		}
		bool flag=true;
		while(flag){
			int i;
			flag=false;
			for(i=0; i<n; i++)
				if(leaf[i]){
					flag=true;
					break;
				}
			if(!flag)
				break;
			cout<<i+1<<endl;
			cerr<<i<<" "<<tree[i].total<<endl;
			leaf[i]=false;
			tree[i].total=0;
			for(auto it=tree[i].edge.begin(); it!=tree[i].edge.end(); it++){
				tree[*it].total--;
				if(tree[*it].total==1)
					leaf[*it]=true;
			}
		}
	}
}



Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
2
2 1

correct output
(empty)

user output
(empty)

Test 2

Group: 1, 2, 3

Verdict:

input
1
3
3 1
2 1

correct output
(empty)

user output
(empty)

Test 3

Group: 1, 2, 3

Verdict:

input
1
4
3 2
2 1
4 1

correct output
(empty)

user output
(empty)

Test 4

Group: 1, 2, 3

Verdict:

input
1
4
2 3
3 4
1 3

correct output
(empty)

user output
(empty)

Test 5

Group: 1, 2, 3

Verdict:

input
1
5
3 5
4 1
1 3
...

correct output
(empty)

user output
(empty)

Test 6

Group: 1, 2, 3

Verdict:

input
1
5
3 2
3 4
5 1
...

correct output
(empty)

user output
(empty)

Test 7

Group: 1, 2, 3

Verdict:

input
1
5
4 3
1 4
4 2
...

correct output
(empty)

user output
(empty)

Test 8

Group: 1, 2, 3

Verdict:

input
1
10
9 3
8 9
2 9
...

correct output
(empty)

user output
(empty)

Test 9

Group: 1, 2, 3

Verdict:

input
1
10
9 2
5 8
7 1
...

correct output
(empty)

user output
(empty)

Test 10

Group: 1, 2, 3

Verdict:

input
1
10
10 4
9 1
4 7
...

correct output
(empty)

user output
(empty)

Test 11

Group: 1, 2, 3

Verdict:

input
1
10
2 6
4 3
3 5
...

correct output
(empty)

user output
(empty)

Test 12

Group: 2, 3

Verdict:

input
1
500
10 6
6 255
6 428
...

correct output
(empty)

user output
(empty)

Test 13

Group: 2, 3

Verdict:

input
1
500
152 466
451 313
158 479
...

correct output
(empty)

user output
(empty)

Test 14

Group: 2, 3

Verdict:

input
1
500
109 440
330 190
443 161
...

correct output
(empty)

user output
(empty)

Test 15

Group: 2, 3

Verdict:

input
1
500
144 373
257 233
341 318
...

correct output
(empty)

user output
(empty)

Test 16

Group: 3

Verdict:

input
1
100000
54983 75172
93807 75172
44082 75172
...

correct output
(empty)

user output
(empty)

Test 17

Group: 3

Verdict:

input
1
100000
88863 19059
86423 76688
98536 95984
...

correct output
(empty)

user output
(empty)

Test 18

Group: 3

Verdict:

input
1
100000
59979 6389
19097 24999
27846 82330
...

correct output
(empty)

user output
(empty)

Test 19

Group: 3

Verdict:

input
1
100000
58761 66001
25102 51081
98625 67861
...

correct output
(empty)

user output
(empty)

Test 20

Group: 1, 2, 3

Verdict:

input
1
6
2 1
3 2
4 2
...

correct output
(empty)

user output
(empty)