CSES - NOI 2019 Open

Submission details
Task:	Distance Code
Sender:	pwild
Submission time:	2019-03-09 22:56:29 +0200
Language:	C++
Status:	READY
Result:	100

Feedback
group	verdict	score
#1	ACCEPTED	21
#2	ACCEPTED	47
#3	ACCEPTED	32

Test results
test	verdict	time	group
#1	ACCEPTED	0.02 s	1, 2, 3	details
#2	ACCEPTED	0.01 s	1, 2, 3	details
#3	ACCEPTED	0.01 s	1, 2, 3	details
#4	ACCEPTED	0.02 s	1, 2, 3	details
#5	ACCEPTED	0.03 s	1, 2, 3	details
#6	ACCEPTED	0.02 s	1, 2, 3	details
#7	ACCEPTED	0.01 s	1, 2, 3	details
#8	ACCEPTED	0.03 s	1, 2, 3	details
#9	ACCEPTED	0.02 s	1, 2, 3	details
#10	ACCEPTED	0.02 s	1, 2, 3	details
#11	ACCEPTED	0.02 s	1, 2, 3	details
#12	ACCEPTED	0.02 s	2, 3	details
#13	ACCEPTED	0.03 s	2, 3	details
#14	ACCEPTED	0.03 s	2, 3	details
#15	ACCEPTED	0.03 s	2, 3	details
#16	ACCEPTED	0.12 s	3	details
#17	ACCEPTED	0.13 s	3	details
#18	ACCEPTED	0.14 s	3	details
#19	ACCEPTED	0.13 s	3	details
#20	ACCEPTED	0.01 s	1, 2, 3	details

Code

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef pair<ll,ll> pll;
typedef vector<bool> vb;
const ll oo = 0x3f3f3f3f3f3f3f3f;
const double eps = 1e-9;
#define sz(c) ll((c).size())
#define all(c) begin(c), end(c)
#define FOR(i,a,b) for (ll i = (a); i < (b); i++)
#define FORD(i,a,b) for (ll i = (b)-1; i >= (a); i--)
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define eb emplace_back
#define xx first
#define yy second
#define has(c,i) ((c).find(i) != end(c))
#define TR(X) ({ if(1) cerr << "TR: " << (#X) << " = " << (X) << endl; })

void dfs(ll i, ll p, vvl &adj) {
	for (ll j: adj[i]) {
		if (j == p) continue;
		dfs(j,i,adj);
	}
	cout << i+1 << " ";
}

void encoder() {
	ll n; cin >> n;
	vvl adj(n);
	FOR(i,1,n) {
		ll a, b;
		cin >> a >> b;
		a--, b--;
		adj[a].pb(b);
		adj[b].pb(a);
	}
	dfs(0,-1,adj);
	cout << endl;
}

void decoder() {
	ll n; cin >> n;
	vl dist(n-1);
	FOR(i,0,n-1) cin >> dist[i];

	vl p(n,-1);
	FORD(i,0,n-1) {
		ll j = i+1;
		while (dist[i]-- > 1) j = p[j];
		p[i] = j;
		cout << i+1 << " " << j+1 << endl;
	}
}

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	
	ll mode; cin >> mode;
	if (mode == 1) encoder();
	else decoder();
}

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
`2 3 1 3` 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
`3 4 2 4 1 2` 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
`3 4 2 3 1 3` 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
`4 5 3 4 2 5 1 2` 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
`4 5 3 4 2 4 1 5` 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
`4 5 3 4 2 4 1 4` 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
`9 10 8 9 7 9 6 9 5 9 ...` 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
`9 10 8 9 7 8 6 10 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
`9 10 8 9 7 8 6 7 5 6 ...` 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
`9 10 8 9 7 9 6 7 5 10 ...` 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
`499 500 498 499 497 499 496 499 495 499 ...` Truncated

Test 13

Group: 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`499 500 498 499 497 498 496 497 495 496 ...` Truncated

Test 14

Group: 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`499 500 498 499 497 498 496 497 495 496 ...` Truncated

Test 15

Group: 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`499 500 498 499 497 498 496 497 495 496 ...` Truncated

Test 16

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`99999 100000 99998 99999 99997 99999 99996 99999 99995 99999 ...` Truncated

Test 17

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`99999 100000 99998 99999 99997 99998 99996 99997 99995 99996 ...` Truncated

Test 18

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`99999 100000 99998 99999 99997 99998 99996 99997 99995 99996 ...` Truncated

Test 19

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`99999 100000 99998 99999 99997 99998 99996 99997 99995 99996 ...` Truncated

Test 20

Group: 1, 2, 3

Verdict: ACCEPTED

input
`1 6 2 1 3 2 4 2 ...` view save

correct output
(empty)

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

NOI 2019 Open

Distance Code

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Tasks

Submissions (pwild)