#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
using namespace std;
const int N = 2e5+5, INF = 1e9;
int n, k, rr;
int a[N];
int q[N];
int cur[N];
int main()
{
ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
cin >> n >> k >> rr;
for (int i = 1; i <= n; cin >> a[i++]);
for (int i = 1, b; i <= rr; cin >> b >> q[b], i++);
int sat = (q[a[1]] && ++cur[a[1]] == q[a[1]]);
int l = 1, r = 1;
int sol = INF;
while (r <= n) {
//cerr << sat << ": " << l << ' ' << r << endl;
if (sat == rr && l <= r) {
sol = min(sol, r-l+1);
if (q[a[l]] && cur[a[l]] == q[a[l]]) sat--;
cur[a[l]]--;
l++;
} else {
r++;
cur[a[r]]++;
if (q[a[r]] && cur[a[r]] == q[a[r]]) sat++;
}
if (r == n) break;
}
while (l <= n && sat == rr) {
sol = min(sol, r-l+1);
if (q[a[l]] && cur[a[l]] == q[a[l]]) break;
cur[a[l]]--;
l++;
}
cout << (sol == INF ? "impossible" : to_string(sol));
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
464 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
476 KB |
Output is correct |
| 5 |
Correct |
1 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
1456 KB |
Output is correct |
| 2 |
Correct |
8 ms |
1636 KB |
Output is correct |
| 3 |
Correct |
9 ms |
1544 KB |
Output is correct |
| 4 |
Correct |
8 ms |
1628 KB |
Output is correct |
| 5 |
Correct |
11 ms |
2648 KB |
Output is correct |
| 6 |
Correct |
7 ms |
1628 KB |
Output is correct |
| 7 |
Correct |
9 ms |
1660 KB |
Output is correct |
| 8 |
Correct |
17 ms |
3164 KB |
Output is correct |
| 9 |
Correct |
10 ms |
2140 KB |
Output is correct |
| 10 |
Correct |
8 ms |
1640 KB |
Output is correct |
| 11 |
Correct |
1 ms |
344 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
0 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
344 KB |
Output is correct |
| 20 |
Correct |
0 ms |
468 KB |
Output is correct |
| 21 |
Correct |
0 ms |
600 KB |
Output is correct |
| 22 |
Correct |
0 ms |
348 KB |
Output is correct |
| 23 |
Correct |
0 ms |
348 KB |
Output is correct |
| 24 |
Correct |
0 ms |
348 KB |
Output is correct |
| 25 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
18 ms |
3420 KB |
Output is correct |
| 2 |
Correct |
16 ms |
3224 KB |
Output is correct |
| 3 |
Correct |
14 ms |
2908 KB |
Output is correct |
| 4 |
Correct |
8 ms |
1512 KB |
Output is correct |
| 5 |
Correct |
20 ms |
3924 KB |
Output is correct |
| 6 |
Correct |
24 ms |
4488 KB |
Output is correct |
| 7 |
Correct |
14 ms |
2136 KB |
Output is correct |
| 8 |
Correct |
18 ms |
2496 KB |
Output is correct |
| 9 |
Correct |
8 ms |
1620 KB |
Output is correct |
| 10 |
Correct |
8 ms |
1628 KB |
Output is correct |
| 11 |
Correct |
9 ms |
1628 KB |
Output is correct |
| 12 |
Correct |
8 ms |
1628 KB |
Output is correct |
| 13 |
Correct |
11 ms |
2524 KB |
Output is correct |
| 14 |
Correct |
9 ms |
1628 KB |
Output is correct |
| 15 |
Correct |
8 ms |
1628 KB |
Output is correct |
| 16 |
Correct |
15 ms |
3228 KB |
Output is correct |
| 17 |
Correct |
14 ms |
2204 KB |
Output is correct |
| 18 |
Correct |
8 ms |
1628 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
472 KB |
Output is correct |
| 21 |
Correct |
1 ms |
348 KB |
Output is correct |
| 22 |
Correct |
1 ms |
348 KB |
Output is correct |
| 23 |
Correct |
0 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
0 ms |
348 KB |
Output is correct |
| 26 |
Correct |
0 ms |
348 KB |
Output is correct |
| 27 |
Correct |
0 ms |
348 KB |
Output is correct |
| 28 |
Correct |
0 ms |
348 KB |
Output is correct |
| 29 |
Correct |
0 ms |
468 KB |
Output is correct |
| 30 |
Correct |
0 ms |
344 KB |
Output is correct |
| 31 |
Correct |
1 ms |
348 KB |
Output is correct |
| 32 |
Correct |
0 ms |
348 KB |
Output is correct |
| 33 |
Correct |
0 ms |
348 KB |
Output is correct |
