#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
#define int long long
#define inf LLONG_MAX
#define pb push_back
#define lc 2*pos+1
#define rc 2*pos+2
#define halleluya ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
signed main(){
halleluya
int n,k,re;cin>>n>>k>>re;
int num[n];
map<int,int>req;
map<int,int>freq;
vector<int>jum;
for (int i=0;i<n;i++)cin>>num[i];
while (re--){
int x,y;cin>>x>>y;
req[x]=y;
jum.pb(x);
}
// for (int i=0;i<n;i++){
// for (auto x:jum) {
// if (0<i) freq[{i,x}]=freq[{i-1,x}];
// if (x==num[i]) freq[{i,x}]++;
// }
// }
int l=0,r=1;
freq[num[0]]++;
freq[num[1]]++;
int ans=inf;
while(l<=r){
bool sal=1;
for (auto x:jum){
while (freq[x]<req[x] && r+1<n){
r++;
freq[num[r]]++;
}
if (freq[x]<req[x] && r==n-1) sal=0;
}
if (sal) ans=min(ans,r-l+1);
freq[num[l]]--;
l++;
}
if (ans==inf)cout<<"impossible";
else cout<<ans;
}
// impossible -> jumlah kurang atau emang gaada substringnya
// harus consecutive
// constraint r
// cuman perlu shortest
// sliding window?
// cuma save jumlah k
// n*k
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 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 |
0 ms |
452 KB |
Output is correct |
7 |
Correct |
0 ms |
460 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
3 ms |
604 KB |
Output is correct |
4 |
Correct |
2 ms |
604 KB |
Output is correct |
5 |
Correct |
2 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
344 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 |
456 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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
38 ms |
2396 KB |
Output is correct |
2 |
Correct |
10 ms |
2396 KB |
Output is correct |
3 |
Correct |
36 ms |
2396 KB |
Output is correct |
4 |
Correct |
35 ms |
2432 KB |
Output is correct |
5 |
Correct |
185 ms |
8124 KB |
Output is correct |
6 |
Correct |
38 ms |
2396 KB |
Output is correct |
7 |
Correct |
56 ms |
2396 KB |
Output is correct |
8 |
Correct |
238 ms |
15688 KB |
Output is correct |
9 |
Correct |
104 ms |
3408 KB |
Output is correct |
10 |
Correct |
45 ms |
2396 KB |
Output is correct |
11 |
Correct |
1 ms |
344 KB |
Output is correct |
12 |
Correct |
1 ms |
404 KB |
Output is correct |
13 |
Correct |
2 ms |
664 KB |
Output is correct |
14 |
Correct |
3 ms |
860 KB |
Output is correct |
15 |
Correct |
2 ms |
600 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
600 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
384 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 |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2021 ms |
14280 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |