#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ar array
const int mxN=2e5;
int n, k, r, a[mxN], cnt[mxN];
set<ar<int, 2>> s;
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> n >> k >> r;
for (int i=0; i<n; ++i)
cin >> a[i];
while(r--) {
int x, y;
cin >> x >> y;
cnt[x]=y;
s.insert({y, x});
}
for (int i=0; i<k; ++i)
if (!cnt[i])
s.insert({0, i});
int ans=69696969;
for (int l=0, r=0; r<n; ++r) {
s.erase({cnt[a[r]], a[r]});
s.insert({--cnt[a[r]], a[r]});
if ((*s.rbegin())[0]>0)
continue;
while(cnt[a[l]]<0) {
s.erase({cnt[a[l]], a[l]});
s.insert({++cnt[a[l]], a[l++]});
}
ans=min(ans, r-l+1);
}
if (ans==69696969) {
cout << "impossible";
return 0;
}
cout << ans;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
1 ms |
244 KB |
Output is correct |
| 4 |
Correct |
1 ms |
328 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
1 ms |
332 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
4 ms |
488 KB |
Output is correct |
| 4 |
Correct |
5 ms |
460 KB |
Output is correct |
| 5 |
Correct |
3 ms |
340 KB |
Output is correct |
| 6 |
Correct |
2 ms |
360 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
332 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
320 KB |
Output is correct |
| 12 |
Correct |
1 ms |
324 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
40 ms |
1484 KB |
Output is correct |
| 2 |
Correct |
33 ms |
1492 KB |
Output is correct |
| 3 |
Correct |
56 ms |
1544 KB |
Output is correct |
| 4 |
Correct |
51 ms |
1492 KB |
Output is correct |
| 5 |
Correct |
206 ms |
6260 KB |
Output is correct |
| 6 |
Correct |
30 ms |
1492 KB |
Output is correct |
| 7 |
Correct |
51 ms |
1620 KB |
Output is correct |
| 8 |
Correct |
372 ms |
12528 KB |
Output is correct |
| 9 |
Correct |
134 ms |
2456 KB |
Output is correct |
| 10 |
Correct |
49 ms |
1492 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
2 ms |
340 KB |
Output is correct |
| 13 |
Correct |
3 ms |
468 KB |
Output is correct |
| 14 |
Correct |
4 ms |
468 KB |
Output is correct |
| 15 |
Correct |
3 ms |
360 KB |
Output is correct |
| 16 |
Correct |
2 ms |
340 KB |
Output is correct |
| 17 |
Correct |
1 ms |
328 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
1 ms |
324 KB |
Output is correct |
| 21 |
Correct |
1 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
224 KB |
Output is correct |
| 23 |
Correct |
1 ms |
212 KB |
Output is correct |
| 24 |
Correct |
1 ms |
212 KB |
Output is correct |
| 25 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
218 ms |
6928 KB |
Output is correct |
| 2 |
Correct |
159 ms |
5688 KB |
Output is correct |
| 3 |
Correct |
196 ms |
5440 KB |
Output is correct |
| 4 |
Correct |
49 ms |
1492 KB |
Output is correct |
| 5 |
Correct |
189 ms |
8352 KB |
Output is correct |
| 6 |
Correct |
297 ms |
12436 KB |
Output is correct |
| 7 |
Correct |
105 ms |
2516 KB |
Output is correct |
| 8 |
Correct |
155 ms |
3260 KB |
Output is correct |
| 9 |
Correct |
37 ms |
1492 KB |
Output is correct |
| 10 |
Correct |
35 ms |
1492 KB |
Output is correct |
| 11 |
Correct |
52 ms |
1528 KB |
Output is correct |
| 12 |
Correct |
56 ms |
1492 KB |
Output is correct |
| 13 |
Correct |
200 ms |
6224 KB |
Output is correct |
| 14 |
Correct |
34 ms |
1408 KB |
Output is correct |
| 15 |
Correct |
52 ms |
1668 KB |
Output is correct |
| 16 |
Correct |
333 ms |
12524 KB |
Output is correct |
| 17 |
Correct |
129 ms |
2452 KB |
Output is correct |
| 18 |
Correct |
53 ms |
1492 KB |
Output is correct |
| 19 |
Correct |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
3 ms |
468 KB |
Output is correct |
| 22 |
Correct |
4 ms |
468 KB |
Output is correct |
| 23 |
Correct |
3 ms |
340 KB |
Output is correct |
| 24 |
Correct |
2 ms |
340 KB |
Output is correct |
| 25 |
Correct |
1 ms |
212 KB |
Output is correct |
| 26 |
Correct |
1 ms |
212 KB |
Output is correct |
| 27 |
Correct |
1 ms |
212 KB |
Output is correct |
| 28 |
Correct |
1 ms |
212 KB |
Output is correct |
| 29 |
Correct |
1 ms |
212 KB |
Output is correct |
| 30 |
Correct |
1 ms |
212 KB |
Output is correct |
| 31 |
Correct |
1 ms |
324 KB |
Output is correct |
| 32 |
Correct |
1 ms |
212 KB |
Output is correct |
| 33 |
Correct |
1 ms |
212 KB |
Output is correct |
