#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define MAXN (1000005)
int main() {
ios_base::sync_with_stdio(false);cin.tie(0);
ll N,K,R;
cin>>N>>K>>R;
ll arr[N];
for(ll i = 0;i < N;i++){
cin>>arr[i];
}
ll cnt[K];
memset(cnt,0,sizeof(cnt));
ll atleast[K];
memset(atleast,0,sizeof(atleast));
set<pair<ll,ll> > shortage;
for(ll i = 0;i < R;i++){
ll b,q;
cin>>b>>q;
atleast[b] = q;
shortage.insert({q,b});
}
ll minimum = 1e18;
ll l = 0;
for(ll r = 0;r < N;r++){
if(cnt[arr[r]] < atleast[arr[r]]){
auto it = shortage.find({atleast[arr[r]] - cnt[arr[r]],arr[r]});
shortage.erase(it);
cnt[arr[r]]++;
if(cnt[arr[r]] < atleast[arr[r]]){
shortage.insert({atleast[arr[r]] - cnt[arr[r]],arr[r]});
}
}else{
cnt[arr[r]]++;
}
if(shortage.empty()){
while(l < r && cnt[arr[l]] > atleast[arr[l]]){
cnt[arr[l]]--;
l++;
}
minimum = min(minimum,r - l + 1);
}
}
if(!shortage.empty()) cout<<"impossible"<<'\n';
else cout<<minimum<<'\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
344 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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
13 ms |
2396 KB |
Output is correct |
2 |
Correct |
12 ms |
2396 KB |
Output is correct |
3 |
Correct |
11 ms |
2396 KB |
Output is correct |
4 |
Correct |
13 ms |
2396 KB |
Output is correct |
5 |
Correct |
14 ms |
4188 KB |
Output is correct |
6 |
Correct |
24 ms |
2412 KB |
Output is correct |
7 |
Correct |
10 ms |
2396 KB |
Output is correct |
8 |
Correct |
16 ms |
6236 KB |
Output is correct |
9 |
Correct |
12 ms |
3020 KB |
Output is correct |
10 |
Correct |
15 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
600 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 |
348 KB |
Output is correct |
16 |
Correct |
1 ms |
460 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 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 |
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 |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
72 ms |
10068 KB |
Output is correct |
2 |
Correct |
50 ms |
8280 KB |
Output is correct |
3 |
Correct |
24 ms |
5464 KB |
Output is correct |
4 |
Correct |
10 ms |
2396 KB |
Output is correct |
5 |
Correct |
112 ms |
10748 KB |
Output is correct |
6 |
Correct |
85 ms |
13392 KB |
Output is correct |
7 |
Correct |
35 ms |
3404 KB |
Output is correct |
8 |
Correct |
37 ms |
4464 KB |
Output is correct |
9 |
Correct |
13 ms |
2396 KB |
Output is correct |
10 |
Correct |
12 ms |
2396 KB |
Output is correct |
11 |
Correct |
11 ms |
2388 KB |
Output is correct |
12 |
Correct |
14 ms |
2396 KB |
Output is correct |
13 |
Correct |
15 ms |
4188 KB |
Output is correct |
14 |
Correct |
22 ms |
2396 KB |
Output is correct |
15 |
Correct |
9 ms |
2396 KB |
Output is correct |
16 |
Correct |
22 ms |
6220 KB |
Output is correct |
17 |
Correct |
12 ms |
2908 KB |
Output is correct |
18 |
Correct |
15 ms |
2396 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 |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
464 KB |
Output is correct |
24 |
Correct |
1 ms |
460 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
344 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
656 KB |
Output is correct |
31 |
Correct |
1 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |