CSES - NOI 2019

Submission details
Task:	Distance Code
Sender:	Carl Westerlund
Submission time:	2019-03-06 13:04:32 +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	0.01 s	1, 2, 3	details
#2	ACCEPTED	0.01 s	1, 2, 3	details
#3	ACCEPTED	0.02 s	1, 2, 3	details
#4	ACCEPTED	0.02 s	1, 2, 3	details
#5	ACCEPTED	0.02 s	1, 2, 3	details
#6	ACCEPTED	0.02 s	1, 2, 3	details
#7	ACCEPTED	0.02 s	1, 2, 3	details
#8	ACCEPTED	0.02 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	0.01 s	1, 2, 3	details
#12	ACCEPTED	0.02 s	2, 3	details
#13	ACCEPTED	0.01 s	2, 3	details
#14	ACCEPTED	0.02 s	2, 3	details
#15	ACCEPTED	0.01 s	2, 3	details
#16	ACCEPTED	0.05 s	3	details
#17	ACCEPTED	0.05 s	3	details
#18	ACCEPTED	0.05 s	3	details
#19	ACCEPTED	0.06 s	3	details
#20	ACCEPTED	0.02 s	1, 2, 3	details

Code

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

#if DEBUG
#include "prettyprint.hpp"
#define PRINTLN(x) \
    cerr << x << "\n"
#define PRINTSP(x) \
    cerr << x << " "
#else
#define PRINTLN(x)
#define PRINTSP(x)
#endif

#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define PI 3.141592653589793238462643

template<class T> void amax(T & a, const T & b) { a = max(a,b); }
template<class T> void amin(T & a, const T & b) { a = min(a,b); }


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int r = 0;

    int cas, N;
    cin >> cas >> N;
    if (cas == 1) {
        vector<vector<int>> neis (N);
        for (int n=0; n < N-1; n++) {
            int a, b;
            cin >> a >> b;
            neis[a-1].push_back(b-1);
            neis[b-1].push_back(a-1);
        }
        vector<int> p (N, -1);
        vector<vector<int>> chs (N);
        vector<bool> vis (N, 0);
        queue<int> q;
        q.push(r);
        while (!q.empty()) {
            int cur = q.front(); q.pop();
            if (!vis[cur]) {
                vis[cur] = 1;
                for (auto nei : neis[cur]) {
                    if (nei != p[cur]) {
                        q.push(nei);
                        p[nei] = cur;
                        chs[cur].push_back(nei);
                    }
                }
            }
        }
        int cur = r;
        for (int i=0; i < N; i++) {
            while (!chs[cur].empty()) {
                int ncur = chs[cur].back();
                chs[cur].pop_back();
                cur = ncur;
            }
            cout << cur+1 << " ";
            cur = p[cur];
        }
    }
    else {
        vector<int> p (N, -1);
        int cur = r;
        vector<int> ds (N-1);
        for (int n=0; n < N-1; n++) {
            cin >> ds[n];
        }
        for (int n=N-2; n >= 0; n--) {
            int d = ds[n];
            for (int i=0; i < d-1; i++) {
               cur = p[cur];
            }
            p[n+1] = cur;
            cout << n+2 << " " << cur+1 << "\n";
            cur = n+1;
        }
    }
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
`1 2 2 1` view save

correct output
(empty)

user output
`2 1` view save

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
`1 3 3 1 2 1` view save

correct output
(empty)

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

Test 13

Group: 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`500 1 499 500 498 499 497 498 496 497 ...` Truncated

Test 14

Group: 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`500 1 499 1 498 499 497 498 496 498 ...` Truncated

Test 15

Group: 2, 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`500 1 499 500 498 499 497 498 496 497 ...` Truncated

Test 16

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`100000 1 99999 100000 99998 100000 99997 100000 99996 100000 ...` Truncated

Test 17

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`100000 1 99999 100000 99998 99999 99997 99998 99996 99997 ...` Truncated

Test 18

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`100000 1 99999 1 99998 99999 99997 99998 99996 99998 ...` Truncated

Test 19

Group: 3

Verdict: ACCEPTED

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

correct output
(empty)

user output
`100000 1 99999 100000 99998 99999 99997 99998 99996 99997 ...` 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
`6 1 5 6 4 5 3 5 2 6` view save

NOI 2019

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 (Carl Westerlund)