#include<bits/stdc++.h>
using namespace std;
int ar[200005];
int mn[200005];
int temp[200005];
int n,k,r;
bool check(int m){
int cnt=0;
for(int i=0;i<k;i++)temp[i]=0;
for(int i=0;i<k;i++)if(mn[i]==0)cnt++;
for(int i=1;i<=m;i++){
temp[ar[i]]++;
if(temp[ar[i]]==mn[ar[i]])cnt++;
}
if(cnt==k)return true;
//cerr<<m<<" "<<cnt<<"\n";
for(int i=m+1;i<=n;i++){
temp[ar[i]]++;
if(temp[ar[i]]==mn[ar[i]])cnt++;
temp[ar[i-m]]--;
if(temp[ar[i-m]]==mn[ar[i-m]]-1)cnt--;
if(cnt==k)return true;
}
return false;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
cin>>n>>k>>r;
for(int i=1;i<=n;i++)cin>>ar[i];
for(int i=0;i<r;i++){
int b;cin>>b;
cin>>mn[b];
}
int st=1,en=n,ans=-1;
while(st<=en){
int m=(st+en)/2;
if(check(m)){
en=m-1;
ans=m;
}else{
st=m+1;
}
}
if(ans==-1)cout<<"impossible";
else cout<<ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2392 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
1 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2392 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2396 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2536 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
2 ms |
2396 KB |
Output is correct |
6 |
Correct |
1 ms |
2392 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2392 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2396 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2392 KB |
Output is correct |
15 |
Correct |
0 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
12 ms |
2904 KB |
Output is correct |
2 |
Correct |
19 ms |
2908 KB |
Output is correct |
3 |
Correct |
10 ms |
2908 KB |
Output is correct |
4 |
Correct |
12 ms |
2908 KB |
Output is correct |
5 |
Correct |
19 ms |
3716 KB |
Output is correct |
6 |
Correct |
12 ms |
2908 KB |
Output is correct |
7 |
Correct |
13 ms |
3164 KB |
Output is correct |
8 |
Correct |
24 ms |
3908 KB |
Output is correct |
9 |
Correct |
20 ms |
3420 KB |
Output is correct |
10 |
Correct |
17 ms |
2884 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
1 ms |
2408 KB |
Output is correct |
13 |
Correct |
1 ms |
2396 KB |
Output is correct |
14 |
Correct |
1 ms |
2396 KB |
Output is correct |
15 |
Correct |
1 ms |
2392 KB |
Output is correct |
16 |
Correct |
1 ms |
2392 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
1 ms |
2396 KB |
Output is correct |
19 |
Correct |
1 ms |
2396 KB |
Output is correct |
20 |
Correct |
1 ms |
2396 KB |
Output is correct |
21 |
Correct |
1 ms |
2396 KB |
Output is correct |
22 |
Correct |
1 ms |
2400 KB |
Output is correct |
23 |
Correct |
1 ms |
2396 KB |
Output is correct |
24 |
Correct |
1 ms |
2396 KB |
Output is correct |
25 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
25 ms |
4448 KB |
Output is correct |
2 |
Correct |
27 ms |
4384 KB |
Output is correct |
3 |
Correct |
30 ms |
4288 KB |
Output is correct |
4 |
Correct |
9 ms |
2908 KB |
Output is correct |
5 |
Correct |
28 ms |
4912 KB |
Output is correct |
6 |
Correct |
38 ms |
4776 KB |
Output is correct |
7 |
Correct |
17 ms |
3420 KB |
Output is correct |
8 |
Correct |
25 ms |
3676 KB |
Output is correct |
9 |
Correct |
12 ms |
2904 KB |
Output is correct |
10 |
Correct |
18 ms |
2908 KB |
Output is correct |
11 |
Correct |
10 ms |
3160 KB |
Output is correct |
12 |
Correct |
12 ms |
2908 KB |
Output is correct |
13 |
Correct |
20 ms |
3928 KB |
Output is correct |
14 |
Correct |
12 ms |
2908 KB |
Output is correct |
15 |
Correct |
13 ms |
3164 KB |
Output is correct |
16 |
Correct |
27 ms |
3936 KB |
Output is correct |
17 |
Correct |
14 ms |
3416 KB |
Output is correct |
18 |
Correct |
13 ms |
2908 KB |
Output is correct |
19 |
Correct |
1 ms |
2392 KB |
Output is correct |
20 |
Correct |
1 ms |
2392 KB |
Output is correct |
21 |
Correct |
1 ms |
2396 KB |
Output is correct |
22 |
Correct |
1 ms |
2396 KB |
Output is correct |
23 |
Correct |
1 ms |
2392 KB |
Output is correct |
24 |
Correct |
1 ms |
2652 KB |
Output is correct |
25 |
Correct |
1 ms |
2396 KB |
Output is correct |
26 |
Correct |
1 ms |
2396 KB |
Output is correct |
27 |
Correct |
1 ms |
2392 KB |
Output is correct |
28 |
Correct |
1 ms |
2396 KB |
Output is correct |
29 |
Correct |
1 ms |
2396 KB |
Output is correct |
30 |
Correct |
1 ms |
2396 KB |
Output is correct |
31 |
Correct |
1 ms |
2392 KB |
Output is correct |
32 |
Correct |
1 ms |
2396 KB |
Output is correct |
33 |
Correct |
0 ms |
2396 KB |
Output is correct |