CSES - Datatähti Open 2017

Submission details
Task:	Grid
Sender:	Kaban-5
Submission time:	2017-01-20 18:08:07 +0200
Language:	C++
Status:	READY
Result:	35

Feedback
group	verdict	score
#1	ACCEPTED	35
#2	TIME LIMIT EXCEEDED	0
#3	TIME LIMIT EXCEEDED	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.04 s	1	details
#2	ACCEPTED	0.03 s	1	details
#3	ACCEPTED	0.03 s	1	details
#4	ACCEPTED	0.03 s	1	details
#5	ACCEPTED	0.05 s	1	details
#6	ACCEPTED	0.05 s	1	details
#7	ACCEPTED	0.03 s	1	details
#8	ACCEPTED	0.03 s	1	details
#9	ACCEPTED	0.04 s	1	details
#10	ACCEPTED	0.04 s	2	details
#11	ACCEPTED	0.04 s	2	details
#12	ACCEPTED	0.13 s	2	details
#13	TIME LIMIT EXCEEDED	--	2	details
#14	TIME LIMIT EXCEEDED	--	2	details
#15	TIME LIMIT EXCEEDED	--	2	details
#16	ACCEPTED	0.04 s	3	details
#17	ACCEPTED	0.05 s	3	details
#18	TIME LIMIT EXCEEDED	--	3	details
#19	TIME LIMIT EXCEEDED	--	3	details
#20	TIME LIMIT EXCEEDED	--	3	details
#21	TIME LIMIT EXCEEDED	--	3	details

Code

//#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define fst first
#define snd second
#define forn(i, n) for (int i = 0; i < int(n); ++i)
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;
typedef pair<int, int> pii;
typedef vector<pii> vii;
#define sz(c) (int)(c).size()
#define ALL(c) (c).begin(), (c).end()

bool check (const vvi &v)
{
    const int n = sz(v);
    vi sums(2 * n);
    forn (i, n) forn (j, n)
    {
        sums[i] += v[i][j];
        sums[n + j] += v[i][j];
    }

    sort(ALL(sums));
    return unique(ALL(sums)) == sums.end();
}

void solve (int n)
{
    vi nums(n * n);
    forn (i, n) forn (j, n) nums[i * n + j] = i + 1;
    mt19937 rng;

    if (n <= 3)
    {
        cout << "QAQ" << endl;
        return;
    }

    vvi mat(n, vi(n));
    shuffle(ALL(nums), rng);
    forn (i, n) forn (j, n) mat[i][j] = nums[i * n + j];
    while (true)
    {
        if (!check(mat))
        {
            for (int it = 0; it < 1; it++)
            {
                int x = rng() % (n * n);
                int y = rng() % (n * n);
                swap(mat[x / n][x % n], mat[y / n][y % n]);
            }
            continue;
        }

        forn (i, n)
        {
            forn (j, n)
                cout << mat[i][j] << " \n"[j + 1 == n];
        }
        return;
    }

    forn (i, n) forn (j, n) if (j != i) mat[i][j] = i + 1;
    forn (i, (n - (n & 1))) mat[i][i] = (n - (n & 1) - i);

    vi p(n);
    iota(ALL(p), 0);

    while (true)
    {
        shuffle(ALL(p), rng);
        forn (i, n) mat[i][i] = p[i];

        if (check(mat))
        {
            forn (i, n)
            {
                forn (j, n)
                    cout << mat[i][j] << ' ';
                cout << '\n';
            }
            return;
        }
    }
}

int main()
{
    #ifndef ONLINE_JUDGE
    //freopen("input.txt", "rt", stdin);
    //freopen("output.txt", "w", stdout);
    #endif // ONLINE_JUDGE

    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n;
    while (cin >> n)
        solve(n);
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
`2` view save

correct output
`QAQ` view save

user output
`QAQ` view save

Test 2

Group: 1

Verdict: ACCEPTED

input
`3` view save

correct output
`QAQ` view save

user output
`QAQ` view save

Test 3

Group: 1

Verdict: ACCEPTED

input
`4` view save

correct output
`3 4 3 4 3 1 1 2 4 4 3 2 2 2 1 1` view save

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

Test 4

Group: 1

Verdict: ACCEPTED

input
`5` view save

correct output
`2 3 4 1 1 3 4 2 1 2 4 2 3 1 3 4 3 2 1 4 5 5 5 5 5` view save

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

Test 5

Group: 1

Verdict: ACCEPTED

input
`6` view save

correct output
`2 3 4 5 1 1 3 4 5 2 1 2 4 5 2 3 1 3 5 2 3 4 1 4 5 4 3 2 1 5 ...` view save

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

Test 6

Group: 1

Verdict: ACCEPTED

input
`7` view save

correct output
`2 3 4 5 6 1 1 3 4 5 6 2 1 2 4 5 6 2 3 1 3 5 6 2 3 4 1 4 6 2 3 4 5 1 5 ...` view save

user output
`5 3 5 7 1 5 6 6 3 1 6 4 3 4 2 3 7 6 7 4 7 4 5 5 7 6 1 6 6 1 2 5 4 3 2 ...` view save

Test 7

Group: 1

Verdict: ACCEPTED

input
`8` view save

correct output
`2 3 4 5 6 7 1 1 3 4 5 6 7 2 1 2 4 5 6 7 2 3 1 3 5 6 7 2 3 4 1 4 6 7 2 3 4 5 1 5 ...` view save

user output
`2 6 4 2 8 4 1 5 6 6 4 7 7 4 8 6 1 3 5 4 3 5 1 2 2 7 4 8 2 4 1 7 6 6 6 7 7 2 8 8 ...` view save

Test 8

Group: 1

Verdict: ACCEPTED

input
`9` view save

correct output
`2 3 4 5 6 7 8 1 1 3 4 5 6 7 8 2 1 2 4 5 6 7 8 2 3 1 3 5 6 7 8 2 3 4 1 4 6 7 8 2 3 4 5 1 5 ...` view save

user output
`9 2 4 2 4 2 8 3 4 2 4 5 9 9 7 1 2 6 8 2 5 1 2 3 5 3 3 6 9 7 2 8 5 3 6 6 8 1 5 8 7 8 4 1 4 ...` view save

Test 9

Group: 1

Verdict: ACCEPTED

input
`10` view save

correct output
`2 3 4 5 6 7 8 9 1 1 3 4 5 6 7 8 9 2 1 2 4 5 6 7 8 9 2 3 1 3 5 6 7 8 9 2 3 4 1 4 6 7 8 9 2 3 4 5 1 5 ...` view save

user output
`7 6 8 9 2 3 3 10 9 1 8 2 7 5 10 10 3 10 8 2 4 2 8 7 8 6 10 1 7 9 2 1 6 9 6 7 2 3 9 10 1 5 8 1 4 3 10 6 4 5 ...` view save

Test 10

Group: 2

Verdict: ACCEPTED

input
`3` view save

correct output
`QAQ` view save

user output
`QAQ` view save

Test 11

Group: 2

Verdict: ACCEPTED

input
`4` view save

correct output
`3 4 3 4 3 1 1 2 4 4 3 2 2 2 1 1` view save

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

Test 12

Group: 2

Verdict: ACCEPTED

input
`29` view save

correct output
`2 3 4 5 6 7 8 9 10 11 12 13 14...` view save

user output
`17 4 16 2 13 2 10 16 18 29 15 ...` view save

Test 13

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`48` view save

correct output
`2 3 4 5 6 7 8 9 10 11 12 13 14...` view save

user output
(empty)

Test 14

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`80` view save

correct output
`2 3 4 5 6 7 8 9 10 11 12 13 14...` view save

user output
(empty)

Test 15

Group: 2

Verdict: TIME LIMIT EXCEEDED

input
`97` view save

correct output
`2 3 4 5 6 7 8 9 10 11 12 13 14...` view save

user output
(empty)

Test 16

Group: 3

Verdict: ACCEPTED

input
`3` view save

correct output
`QAQ` view save

user output
`QAQ` view save

Test 17

Group: 3

Verdict: ACCEPTED

input
`4` view save

correct output
`3 4 3 4 3 1 1 2 4 4 3 2 2 2 1 1` view save

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

Test 18

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`111` view save

correct output
`2 3 4 5 6 7 8 9 10 11 12 13 14...` view save

user output
(empty)

Test 19

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`506` view save

correct output
`2 3 4 5 6 7 8 9 10 11 12 13 14...` view save

user output
(empty)

Test 20

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`844` view save

correct output
`2 3 4 5 6 7 8 9 10 11 12 13 14...` view save

user output
(empty)

Test 21

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`991` view save

correct output
`2 3 4 5 6 7 8 9 10 11 12 13 14...` view save

user output
(empty)

Datatähti Open 2017

Grid

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

Test 21

Tasks

Submissions (Kaban-5)