CSES - NOI 2019 Open - Results
Submission details
Task:Distance Code
Sender:Lorenzo
Submission time:2019-03-10 10:18:04 +0200
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.02 s1, 2, 3details
#20.03 s1, 2, 3details
#30.03 s1, 2, 3details
#40.03 s1, 2, 3details
#50.03 s1, 2, 3details
#60.02 s1, 2, 3details
#70.01 s1, 2, 3details
#80.02 s1, 2, 3details
#90.01 s1, 2, 3details
#100.02 s1, 2, 3details
#110.03 s1, 2, 3details
#120.02 s2, 3details
#130.02 s2, 3details
#140.01 s2, 3details
#150.01 s2, 3details
#16--3details
#17--3details
#180.03 s3details
#190.04 s3details
#200.02 s1, 2, 3details

Compiler report

input/code.cpp: In function 'void encoder()':
input/code.cpp:34:15: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
           ne[j]--;
               ^

Code

#include <bits/stdc++.h>
using namespace std;
int n;
void encoder(){
std::vector<int> ne (n, 0);
std::vector<std::vector<pair<int, int> > > e (n);
int a, b;
for(int i=0; i<n-1; i++){
cin >> a >> b;
a--;
b--;
e[a].push_back({b, 1});
e[b].push_back({a, 1});
ne[a]++;
ne[b]++;
}
// cout << "in"<<endl;
int c=0;
while (c<n) {
for(int i=0; i<n; i++)
if(ne[i]<=1){
cout << i+1<< " ";
c++;
if(ne[i]==1){
int j;
for(auto &x: e[i])
if(x.second){
j=x.first;
break;
}
ne[j]--;
for(auto &x: e[j])
if(x.second && x.first==i){
x.second=0;
break;
}
}
ne[i]=n;
}
}
cout << endl;
}
void decoder(){
std::vector<std::vector<int> > e(n);
std::vector<int> d(n-1, 0);
int a;
for(int i=0; i<n-1; i++){
cin >> a;
d[i]+=a;
if(d[i]==1){
e[i].push_back(i+1);
e[i+1].push_back(i);
d[i]=0;
}
}
int c=1;
while(c){
c=0;
for(int i=0; i<n-1; i++){
if(d[i]==1){
e[i].push_back(i+1);
e[i+1].push_back(i);
d[i]=0;
}
}
}
}
int main(){
ios_base::sync_with_stdio(false);
int t;
cin >> t >> n;
if(t==1)
encoder();
else
decoder();
}

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)