#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl '\n'
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
int n, k, r; cin >> n >> k >> r;
int a[200005];
for(int i=0; i<n; i++){cin >> a[i];}
int b[200005]={0};
int c[200005];
for(int i=0; i<k; i++){c[i]=1;}
for(int i=0; i<r; i++){
int q, w; cin >> q >> w;
c[q]= w;
}
int ans= -1;
int count= 0;
int s= 0; int e= 0;
for(int i=0; i<n; i++){
b[a[i]]++;
if(b[a[i]]==c[a[i]]){count++;}
if(count==k){e= i; ans= e-s+1; break;}
}
//cout << ans << endl;
if(count==k){
//cout << b[a[s]] << " " << c[a[s]] << endl;
while(e!=n){
//cout << e << endl;
while(b[a[s]]>c[a[s]]){
//cout << "lol" << endl;
b[a[s]]--;
s++;
//cout << "s " << s << endl;
ans= min(ans, e-s+1);
}
e++;
b[a[e]]++;
ans= min(ans, e-s+1);
}
cout << ans << endl;
}else{
cout << "impossible" << endl;
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4940 KB |
Output is correct |
2 |
Incorrect |
2 ms |
4940 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
4940 KB |
Output is correct |
2 |
Correct |
3 ms |
4940 KB |
Output is correct |
3 |
Incorrect |
3 ms |
5016 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
12 ms |
5268 KB |
Output is correct |
2 |
Correct |
15 ms |
5356 KB |
Output is correct |
3 |
Correct |
14 ms |
5356 KB |
Output is correct |
4 |
Correct |
13 ms |
5388 KB |
Output is correct |
5 |
Incorrect |
17 ms |
6028 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
26 ms |
6724 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |