#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define elif else if
#define dbg(v)\
cout << "line(" << __LINE__ << ") -> " << #v << " = " << (v) << endl;
signed main() {
ios_base::sync_with_stdio(false); cin.tie(0);
int n, k, R; cin >> n >> k >> R;
int req[n], cnt[n], arr[n], sz = 0;
unordered_set<int> nums;
fill(req, req+n, 0); fill(cnt, cnt+n, 0);
for(int i = 0; i < n; i++) cin >> arr[i];
for(int i = 0; i < R; i++){
int b, q; cin >> b >> q; sz += q;
req[b] = q; nums.insert(b);
}
int l = 0, r = 0, ans = LLONG_MAX;
while(r < n){
while(!nums.empty() && r < n){
int val = arr[r]; cnt[val]++;
if(req[val] != 0 && cnt[val] >= req[val]) nums.erase(val);
r++;
}
if(r == n) break;
ans = min(ans, r-l);
int val = arr[l]; cnt[val]--;
if(cnt[val] < req[val]) nums.insert(val);
l++;
}
while(l <= n-sz && nums.empty()){
ans = min(ans, n-l);
int val = arr[l]; cnt[val]--;
if(cnt[val] < req[val]) break;
l++;
}
if(ans == LLONG_MAX){cout << "impossible"; return 0;}
cout << ans;
return 0;
}
| # |
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 |
348 KB |
Output is correct |
| 6 |
Correct |
1 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 |
1 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 |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 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 |
600 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
4956 KB |
Output is correct |
| 2 |
Correct |
14 ms |
5144 KB |
Output is correct |
| 3 |
Correct |
15 ms |
4956 KB |
Output is correct |
| 4 |
Correct |
13 ms |
4956 KB |
Output is correct |
| 5 |
Correct |
14 ms |
4952 KB |
Output is correct |
| 6 |
Correct |
10 ms |
4956 KB |
Output is correct |
| 7 |
Correct |
13 ms |
5648 KB |
Output is correct |
| 8 |
Correct |
16 ms |
5724 KB |
Output is correct |
| 9 |
Correct |
13 ms |
5920 KB |
Output is correct |
| 10 |
Correct |
11 ms |
5312 KB |
Output is correct |
| 11 |
Correct |
1 ms |
348 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
348 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
344 KB |
Output is correct |
| 16 |
Correct |
1 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
604 KB |
Output is correct |
| 19 |
Correct |
0 ms |
344 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
0 ms |
348 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 |
33 ms |
8300 KB |
Output is correct |
| 2 |
Correct |
30 ms |
7484 KB |
Output is correct |
| 3 |
Correct |
20 ms |
5788 KB |
Output is correct |
| 4 |
Correct |
15 ms |
5024 KB |
Output is correct |
| 5 |
Correct |
30 ms |
8300 KB |
Output is correct |
| 6 |
Correct |
51 ms |
9604 KB |
Output is correct |
| 7 |
Correct |
15 ms |
5464 KB |
Output is correct |
| 8 |
Correct |
18 ms |
5724 KB |
Output is correct |
| 9 |
Correct |
12 ms |
5144 KB |
Output is correct |
| 10 |
Correct |
14 ms |
4956 KB |
Output is correct |
| 11 |
Correct |
15 ms |
5148 KB |
Output is correct |
| 12 |
Correct |
14 ms |
4956 KB |
Output is correct |
| 13 |
Correct |
14 ms |
5156 KB |
Output is correct |
| 14 |
Correct |
10 ms |
4956 KB |
Output is correct |
| 15 |
Correct |
11 ms |
5588 KB |
Output is correct |
| 16 |
Correct |
16 ms |
5724 KB |
Output is correct |
| 17 |
Correct |
13 ms |
5724 KB |
Output is correct |
| 18 |
Correct |
11 ms |
5468 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| 21 |
Correct |
1 ms |
468 KB |
Output is correct |
| 22 |
Correct |
1 ms |
344 KB |
Output is correct |
| 23 |
Correct |
1 ms |
348 KB |
Output is correct |
| 24 |
Correct |
0 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 |
460 KB |
Output is correct |
| 29 |
Correct |
0 ms |
348 KB |
Output is correct |
| 30 |
Correct |
0 ms |
600 KB |
Output is correct |
| 31 |
Correct |
0 ms |
348 KB |
Output is correct |
| 32 |
Correct |
0 ms |
348 KB |
Output is correct |
| 33 |
Correct |
0 ms |
348 KB |
Output is correct |
