#include <bits/stdc++.h>
#define int long long
using namespace std;
const int MAX_N = 200005;
void solve() {
int n, k, R;
cin >> n >> k >> R;
vector<int>req(k, 0);
int a[n];
for(int i=0; i<n; ++i) cin >> a[i];
for(int i=0; i<R; ++i) {
int b, q;
cin >> b >> q;
req[b] = q;
}
int need = R, l = 0, r = 0, ans = n+1;
vector<int>cnt(k, 0);
++cnt[a[0]];
if(req[a[0]] == 1) --need;
while(r < n) {
while(r != l) {
if((cnt[a[l]]-1) >= req[a[l]]) {
++l;
--cnt[a[l]];
} else break;
}
if(!need) ans = min(ans, r-l+1);
if(r == n-1) break;
++r, ++cnt[a[r]];
if(cnt[a[r]] == req[a[r]]) --need;
}
if(ans == n+1) cout << "impossible" << endl;
else cout << ans << endl;
}
signed main() {
int t = 1;
while(t--) solve();
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
18 ms |
2140 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
54 ms |
4908 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |