#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define F first
#define S second
using namespace std;
ll N, M;
vector<pii> v;
signed main()
{
ios::sync_with_stdio(0), cin.tie(0);
cin >> N >> M;
for (int i = 1; i <= M; i++)
{
int a, b;
cin >> a >> b;
v.emplace_back(pii{a, b});
}
if (N <= 15)
{
for (int mask = 0; mask < (1 << M); mask++)
{
bool valid[2] = {1, 1};
for (int i = 1; i <= N; i++)
{
bool exist[2] = {0, 0};
for (int j = 0; j < M; j++)
{
if ((v[j].F <= v[j].S && v[j].F <= i && i <= v[j].S) || (v[j].F > v[j].S && !(v[j].S < i && i < v[j].F)))
exist[(mask >> j) & 1] = 1;
}
valid[0] &= exist[0];
valid[1] &= exist[1];
}
if (valid[0] && valid[1])
{
for (int j = 0; j < M; j++)
cout << ((mask >> j) & 1);
cout << '\n';
return 0;
}
}
cout << "impossible\n";
}
else
{
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
0 ms |
316 KB |
Output is correct |
| 8 |
Correct |
0 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
1 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
312 KB |
Output is correct |
| 12 |
Correct |
0 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
1 ms |
316 KB |
Output is correct |
| 15 |
Correct |
1 ms |
208 KB |
Output is correct |
| 16 |
Correct |
3 ms |
208 KB |
Output is correct |
| 17 |
Correct |
1 ms |
208 KB |
Output is correct |
| 18 |
Correct |
1 ms |
208 KB |
Output is correct |
| 19 |
Correct |
0 ms |
208 KB |
Output is correct |
| 20 |
Correct |
0 ms |
320 KB |
Output is correct |
| 21 |
Correct |
0 ms |
208 KB |
Output is correct |
| 22 |
Correct |
2 ms |
208 KB |
Output is correct |
| 23 |
Correct |
1 ms |
208 KB |
Output is correct |
| 24 |
Correct |
1 ms |
208 KB |
Output is correct |
| 25 |
Correct |
0 ms |
208 KB |
Output is correct |
| 26 |
Correct |
1 ms |
316 KB |
Output is correct |
| 27 |
Correct |
2 ms |
208 KB |
Output is correct |
| 28 |
Correct |
1 ms |
208 KB |
Output is correct |
| 29 |
Correct |
1 ms |
208 KB |
Output is correct |
| 30 |
Correct |
1 ms |
208 KB |
Output is correct |
| 31 |
Correct |
1 ms |
312 KB |
Output is correct |
| 32 |
Correct |
1 ms |
208 KB |
Output is correct |
| 33 |
Correct |
1 ms |
208 KB |
Output is correct |
| 34 |
Correct |
0 ms |
208 KB |
Output is correct |
| 35 |
Correct |
12 ms |
208 KB |
Output is correct |
| 36 |
Correct |
1 ms |
324 KB |
Output is correct |
| 37 |
Correct |
1 ms |
208 KB |
Output is correct |
| 38 |
Correct |
18 ms |
312 KB |
Output is correct |
| 39 |
Correct |
1 ms |
208 KB |
Output is correct |
| 40 |
Correct |
0 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
0 ms |
316 KB |
Output is correct |
| 8 |
Correct |
0 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
1 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
312 KB |
Output is correct |
| 12 |
Correct |
0 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
1 ms |
316 KB |
Output is correct |
| 15 |
Correct |
1 ms |
208 KB |
Output is correct |
| 16 |
Correct |
3 ms |
208 KB |
Output is correct |
| 17 |
Correct |
1 ms |
208 KB |
Output is correct |
| 18 |
Correct |
1 ms |
208 KB |
Output is correct |
| 19 |
Correct |
0 ms |
208 KB |
Output is correct |
| 20 |
Correct |
0 ms |
320 KB |
Output is correct |
| 21 |
Correct |
0 ms |
208 KB |
Output is correct |
| 22 |
Correct |
2 ms |
208 KB |
Output is correct |
| 23 |
Correct |
1 ms |
208 KB |
Output is correct |
| 24 |
Correct |
1 ms |
208 KB |
Output is correct |
| 25 |
Correct |
0 ms |
208 KB |
Output is correct |
| 26 |
Correct |
1 ms |
316 KB |
Output is correct |
| 27 |
Correct |
2 ms |
208 KB |
Output is correct |
| 28 |
Correct |
1 ms |
208 KB |
Output is correct |
| 29 |
Correct |
1 ms |
208 KB |
Output is correct |
| 30 |
Correct |
1 ms |
208 KB |
Output is correct |
| 31 |
Correct |
1 ms |
312 KB |
Output is correct |
| 32 |
Correct |
1 ms |
208 KB |
Output is correct |
| 33 |
Correct |
1 ms |
208 KB |
Output is correct |
| 34 |
Correct |
0 ms |
208 KB |
Output is correct |
| 35 |
Correct |
12 ms |
208 KB |
Output is correct |
| 36 |
Correct |
1 ms |
324 KB |
Output is correct |
| 37 |
Correct |
1 ms |
208 KB |
Output is correct |
| 38 |
Correct |
18 ms |
312 KB |
Output is correct |
| 39 |
Correct |
1 ms |
208 KB |
Output is correct |
| 40 |
Correct |
0 ms |
208 KB |
Output is correct |
| 41 |
Incorrect |
0 ms |
208 KB |
Unexpected end of file - token expected |
| 42 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
0 ms |
316 KB |
Output is correct |
| 8 |
Correct |
0 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
1 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
312 KB |
Output is correct |
| 12 |
Correct |
0 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
1 ms |
316 KB |
Output is correct |
| 15 |
Correct |
1 ms |
208 KB |
Output is correct |
| 16 |
Correct |
3 ms |
208 KB |
Output is correct |
| 17 |
Correct |
1 ms |
208 KB |
Output is correct |
| 18 |
Correct |
1 ms |
208 KB |
Output is correct |
| 19 |
Correct |
0 ms |
208 KB |
Output is correct |
| 20 |
Correct |
0 ms |
320 KB |
Output is correct |
| 21 |
Correct |
0 ms |
208 KB |
Output is correct |
| 22 |
Correct |
2 ms |
208 KB |
Output is correct |
| 23 |
Correct |
1 ms |
208 KB |
Output is correct |
| 24 |
Correct |
1 ms |
208 KB |
Output is correct |
| 25 |
Correct |
0 ms |
208 KB |
Output is correct |
| 26 |
Correct |
1 ms |
316 KB |
Output is correct |
| 27 |
Correct |
2 ms |
208 KB |
Output is correct |
| 28 |
Correct |
1 ms |
208 KB |
Output is correct |
| 29 |
Correct |
1 ms |
208 KB |
Output is correct |
| 30 |
Correct |
1 ms |
208 KB |
Output is correct |
| 31 |
Correct |
1 ms |
312 KB |
Output is correct |
| 32 |
Correct |
1 ms |
208 KB |
Output is correct |
| 33 |
Correct |
1 ms |
208 KB |
Output is correct |
| 34 |
Correct |
0 ms |
208 KB |
Output is correct |
| 35 |
Correct |
12 ms |
208 KB |
Output is correct |
| 36 |
Correct |
1 ms |
324 KB |
Output is correct |
| 37 |
Correct |
1 ms |
208 KB |
Output is correct |
| 38 |
Correct |
18 ms |
312 KB |
Output is correct |
| 39 |
Correct |
1 ms |
208 KB |
Output is correct |
| 40 |
Correct |
0 ms |
208 KB |
Output is correct |
| 41 |
Incorrect |
0 ms |
208 KB |
Unexpected end of file - token expected |
| 42 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
13 ms |
1428 KB |
Unexpected end of file - token expected |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Correct |
1 ms |
208 KB |
Output is correct |
| 5 |
Correct |
1 ms |
208 KB |
Output is correct |
| 6 |
Correct |
1 ms |
208 KB |
Output is correct |
| 7 |
Correct |
0 ms |
316 KB |
Output is correct |
| 8 |
Correct |
0 ms |
208 KB |
Output is correct |
| 9 |
Correct |
1 ms |
208 KB |
Output is correct |
| 10 |
Correct |
1 ms |
208 KB |
Output is correct |
| 11 |
Correct |
1 ms |
312 KB |
Output is correct |
| 12 |
Correct |
0 ms |
208 KB |
Output is correct |
| 13 |
Correct |
1 ms |
208 KB |
Output is correct |
| 14 |
Correct |
1 ms |
316 KB |
Output is correct |
| 15 |
Correct |
1 ms |
208 KB |
Output is correct |
| 16 |
Correct |
3 ms |
208 KB |
Output is correct |
| 17 |
Correct |
1 ms |
208 KB |
Output is correct |
| 18 |
Correct |
1 ms |
208 KB |
Output is correct |
| 19 |
Correct |
0 ms |
208 KB |
Output is correct |
| 20 |
Correct |
0 ms |
320 KB |
Output is correct |
| 21 |
Correct |
0 ms |
208 KB |
Output is correct |
| 22 |
Correct |
2 ms |
208 KB |
Output is correct |
| 23 |
Correct |
1 ms |
208 KB |
Output is correct |
| 24 |
Correct |
1 ms |
208 KB |
Output is correct |
| 25 |
Correct |
0 ms |
208 KB |
Output is correct |
| 26 |
Correct |
1 ms |
316 KB |
Output is correct |
| 27 |
Correct |
2 ms |
208 KB |
Output is correct |
| 28 |
Correct |
1 ms |
208 KB |
Output is correct |
| 29 |
Correct |
1 ms |
208 KB |
Output is correct |
| 30 |
Correct |
1 ms |
208 KB |
Output is correct |
| 31 |
Correct |
1 ms |
312 KB |
Output is correct |
| 32 |
Correct |
1 ms |
208 KB |
Output is correct |
| 33 |
Correct |
1 ms |
208 KB |
Output is correct |
| 34 |
Correct |
0 ms |
208 KB |
Output is correct |
| 35 |
Correct |
12 ms |
208 KB |
Output is correct |
| 36 |
Correct |
1 ms |
324 KB |
Output is correct |
| 37 |
Correct |
1 ms |
208 KB |
Output is correct |
| 38 |
Correct |
18 ms |
312 KB |
Output is correct |
| 39 |
Correct |
1 ms |
208 KB |
Output is correct |
| 40 |
Correct |
0 ms |
208 KB |
Output is correct |
| 41 |
Incorrect |
0 ms |
208 KB |
Unexpected end of file - token expected |
| 42 |
Halted |
0 ms |
0 KB |
- |
