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NOI 2019 Open

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CSES - NOI 2019 Open - Results
History
0:14:57100
Task:Distance Code
Sender:AngusRitossa
Submission time:2019-03-10 05:25:07
Language:C++
Status:READY
Score:100

Feedback

groupverdictscore
#1ACCEPTED21
#2ACCEPTED47
#3ACCEPTED32

Test results

testverdicttime (s)group
#1ACCEPTED0.02 / 1.001, 2, 3details
#2ACCEPTED0.02 / 1.001, 2, 3details
#3ACCEPTED0.02 / 1.001, 2, 3details
#4ACCEPTED0.03 / 1.001, 2, 3details
#5ACCEPTED0.02 / 1.001, 2, 3details
#6ACCEPTED0.02 / 1.001, 2, 3details
#7ACCEPTED0.02 / 1.001, 2, 3details
#8ACCEPTED0.02 / 1.001, 2, 3details
#9ACCEPTED0.02 / 1.001, 2, 3details
#10ACCEPTED0.02 / 1.001, 2, 3details
#11ACCEPTED0.02 / 1.001, 2, 3details
#12ACCEPTED0.03 / 1.002, 3details
#13ACCEPTED0.02 / 1.002, 3details
#14ACCEPTED0.01 / 1.002, 3details
#15ACCEPTED0.03 / 1.002, 3details
#16ACCEPTED0.06 / 1.003details
#17ACCEPTED0.05 / 1.003details
#18ACCEPTED0.06 / 1.003details
#19ACCEPTED0.04 / 1.003details
#20ACCEPTED0.03 / 1.001, 2, 3details

Compiler report

input/code.cpp: In function 'void encode()':
input/code.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &a, &b);
   ~~~~~^~~~~~~~~~~~~~~~
input/code.cpp: In function 'void decode()':
input/code.cpp:33:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &d);
   ~~~~~^~~~~~~~~~
input/code.cpp: In function 'int main()':
input/code.cpp:43:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &t, &n);
  ~~~~~^~~~~~~~~~~~~~~~

Code

#include <bits/stdc++.h>
using namespace std;
int t, n;
vector<int> adj[100010];
void dfs(int a, int par = -1)
{
	for (auto b : adj[a])
	{
		if (b != par) dfs(b, a);
	}
	printf("%d ", a);
}
void encode()
{
	for (int i = 1; i < n; i++)
	{
		int a, b;
		scanf("%d%d", &a, &b);
		adj[a].push_back(b);
		adj[b].push_back(a);
	}
	dfs(1);
	printf("\n");
}
int upto;
void decode()
{
	stack<int> s;
	s.push(++upto);
	for (int i = 1; i < n; i++)
	{
		int d;
		scanf("%d", &d);
		int a = s.top();
		s.pop();
		if (s.empty()) s.push(++upto);
		printf("%d %d\n", a, s.top());
		for (int i = 1; i < d; i++) s.push(++upto);
	}
}
int main()
{
	scanf("%d%d", &t, &n);
	if (t == 1) encode();
	else decode();
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
2
2 1

view   save

correct output
(empty)

user output
1 2

view   save

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
3
3 1
2 1

view   save

correct output
(empty)

user output
1 2
3 2

view   save

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
4
3 2
2 1
4 1
view   save

correct output
(empty)

user output
1 2
2 3
4 3

view   save

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
4
2 3
3 4
1 3
view   save

correct output
(empty)

user output
1 2
3 2
2 4

view   save

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
5
3 5
4 1
1 3
...
view   save

correct output
(empty)

user output
1 2
2 3
5 4
4 3

view   save

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
5
3 2
3 4
5 1
...
view   save

correct output
(empty)

user output
1 2
4 3
5 3
3 2

view   save

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
5
4 3
1 4
4 2
...
view   save

correct output
(empty)

user output
1 2
3 2
4 2
2 5

view   save

Test 8

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
10
9 3
8 9
2 9
...
view   save

correct output
(empty)

user output
1 2
3 2
4 2
5 2
6 2
...
view   save

Test 9

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
10
9 2
5 8
7 1
...
view   save

correct output
(empty)

user output
1 2
2 3
3 4
4 5
5 6
...
view   save

Test 10

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
10
10 4
9 1
4 7
...
view   save

correct output
(empty)

user output
1 2
4 3
3 2
6 5
10 9
...
view   save

Test 11

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
10
2 6
4 3
3 5
...
view   save

correct output
(empty)

user output
1 2
2 3
3 4
4 5
5 6
...
view   save

Test 12

Group: 2, 3

Verdict: ACCEPTED

input
1
500
10 6
6 255
6 428
...
view   save

correct output
(empty)

user output
1 2
3 2
4 2
5 2
6 2
...
view   save

Test 13

Group: 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
1 2
2 3
3 4
4 5
5 6
...
view   save

Test 14

Group: 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
1 2
5 4
8 7
11 10
10 9
...
view   save

Test 15

Group: 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
1 2
2 3
3 4
4 5
5 6
...
view   save

Test 16

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
1 2
3 2
4 2
5 2
6 2
...
view   save

Test 17

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
1 2
2 3
3 4
4 5
5 6
...
view   save

Test 18

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
1 2
5 4
7 6
9 8
8 6
...
view   save

Test 19

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
1 2
2 3
3 4
4 5
5 6
...
view   save

Test 20

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
6
2 1
3 2
4 2
...
view   save

correct output
(empty)

user output
1 2
3 2
2 4
5 4
4 6
view   save