oj.uz

Submission #169454

# Submission time Handle Problem Language Result Execution time Memory
169454 2019-12-20T12:37:01 Z SamAnd "The Lyuboyn" code (IZhO19_lyuboyn) C++17
100 / 100
 131 ms 19320 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 20;

int n, k, tt;

int a[1 << N];
bool c[1 << N];
vector<int> v;

void rec(int i)
{
    if (i == (1 << n))
    {
        printf("%d\n", (1 << n));
        for (int i = 0; i < (1 << n); ++i)
        {
            for (int j = 0; j < n; ++j)
            {
                if ((a[i] & (1 << j)))
                    putchar('1');
                else
                    putchar('0');
            }
            putchar('\n');
        }
        exit(0);
    }
    for (int j = 0; j < v.size(); ++j)
    {
        int x = (a[i - 1] ^ v[j]);
        if (!c[x])
        {
            c[x] = true;
            a[i] = x;
            rec(i + 1);
            c[x] = false;
        }
    }
}

int qan(int x)
{
    int q = 0;
    for (int i = 0; i < n; ++i)
    {
        if ((x & (1 << i)))
            ++q;
    }
    return q;
}

char s[N];
int main()
{
    //freopen("input.txt", "r", stdin);
    scanf("%d%d%d", &n, &k, &tt);
    for (int x = 0; x < (1 << n); ++x)
    {
        if (qan(x) == k)
            v.push_back(x);
    }
    scanf(" %s", s);
    if (k % 2 == 0)
    {
        printf("-1\n");
        return 0;
    }
    int x = 0;
    for (int i = 0; i < n; ++i)
    {
        if (s[i] == '1')
            x |= (1 << i);
    }
    a[0] = x;
    c[x] = true;
    rec(1);
    return 0;
}

Compilation message

lyuboyn.cpp: In function 'void rec(int)':
lyuboyn.cpp:29:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int j = 0; j < v.size(); ++j)
                     ~~^~~~~~~~~~
lyuboyn.cpp: In function 'int main()':
lyuboyn.cpp:57:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d", &n, &k, &tt);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
lyuboyn.cpp:63:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf(" %s", s);
     ~~~~~^~~~~~~~~~

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Ok

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Ok

Subtask #3
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Ok
2 Correct 9 ms 376 KB Ok
3 Correct 6 ms 580 KB Ok
4 Correct 2 ms 256 KB Ok
5 Correct 2 ms 256 KB Ok
6 Correct 2 ms 376 KB Ok
7 Correct 2 ms 376 KB Ok
8 Correct 5 ms 376 KB Ok

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 124 ms 18936 KB Ok
2 Correct 61 ms 9592 KB Ok
3 Correct 2 ms 376 KB Ok
4 Correct 2 ms 376 KB Ok
5 Correct 2 ms 376 KB Ok

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Ok
2 Correct 5 ms 888 KB Ok
3 Correct 61 ms 9496 KB Ok
4 Correct 30 ms 4984 KB Ok
5 Correct 2 ms 376 KB Ok
6 Correct 3 ms 504 KB Ok
7 Correct 15 ms 2552 KB Ok
8 Correct 2 ms 376 KB Ok

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 19152 KB Ok
2 Correct 124 ms 19064 KB Ok
3 Correct 124 ms 19064 KB Ok
4 Correct 61 ms 9720 KB Ok
5 Correct 60 ms 9504 KB Ok
6 Correct 30 ms 4908 KB Ok
7 Correct 30 ms 4856 KB Ok
8 Correct 16 ms 2556 KB Ok
9 Correct 15 ms 2680 KB Ok
10 Correct 8 ms 1400 KB Ok
11 Correct 2 ms 376 KB Ok
12 Correct 2 ms 376 KB Ok
13 Correct 2 ms 376 KB Ok

Subtask #7
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 124 ms 18936 KB Ok
2 Correct 61 ms 9592 KB Ok
3 Correct 2 ms 376 KB Ok
4 Correct 2 ms 376 KB Ok
5 Correct 2 ms 376 KB Ok
6 Correct 2 ms 376 KB Ok
7 Correct 5 ms 888 KB Ok
8 Correct 61 ms 9496 KB Ok
9 Correct 30 ms 4984 KB Ok
10 Correct 2 ms 376 KB Ok
11 Correct 3 ms 504 KB Ok
12 Correct 15 ms 2552 KB Ok
13 Correct 2 ms 376 KB Ok
14 Correct 125 ms 19152 KB Ok
15 Correct 124 ms 19064 KB Ok
16 Correct 124 ms 19064 KB Ok
17 Correct 61 ms 9720 KB Ok
18 Correct 60 ms 9504 KB Ok
19 Correct 30 ms 4908 KB Ok
20 Correct 30 ms 4856 KB Ok
21 Correct 16 ms 2556 KB Ok
22 Correct 15 ms 2680 KB Ok
23 Correct 8 ms 1400 KB Ok
24 Correct 2 ms 376 KB Ok
25 Correct 2 ms 376 KB Ok
26 Correct 2 ms 376 KB Ok
27 Correct 124 ms 18996 KB Ok
28 Correct 61 ms 9596 KB Ok
29 Correct 124 ms 19192 KB Ok
30 Correct 8 ms 1400 KB Ok
31 Correct 2 ms 380 KB Ok
32 Correct 5 ms 888 KB Ok
33 Correct 16 ms 2524 KB Ok
34 Correct 2 ms 376 KB Ok
35 Correct 2 ms 256 KB Ok
36 Correct 2 ms 376 KB Ok
37 Correct 2 ms 376 KB Ok
38 Correct 60 ms 9532 KB Ok

Subtask #8
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 9464 KB Ok
2 Correct 123 ms 18916 KB Ok
3 Correct 131 ms 19320 KB Ok
4 Correct 8 ms 1400 KB Ok
5 Correct 2 ms 376 KB Ok
6 Correct 16 ms 2552 KB Ok
7 Correct 124 ms 19064 KB Ok
8 Correct 2 ms 376 KB Ok
9 Correct 2 ms 376 KB Ok
10 Correct 2 ms 376 KB Ok
11 Correct 30 ms 4860 KB Ok
12 Correct 61 ms 9592 KB Ok