#include <bits/stdc++.h>
#define fr(i, n, m) for(int i = (n); i < (m); i ++)
#define pb push_back
#define st first
#define nd second
#define pq priority_queue
#define all(x) begin(x), end(x)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pii;
const ll inf = 1e18;
const int i_inf = 1e9;
const ll mod = 1e9+7;
mt19937 _rand(time(NULL));
const int mxn = 2e5;
int n, k, r;
int a[mxn];
int c[mxn];
int cnt[mxn];
void solve(){
cin >> n >> k >> r;
fr(i, 0, n){
cin >> a[i];
}
fr(i, 0, r){
int nuc;
cin >> nuc >> c[nuc];
}
int in = 0;
int p = 0;
while(in < r && p < n){
cnt[a[p]] ++;
if(cnt[a[p]] == c[a[p]]){
++in;
}
++p;
}
if(in < r){
cout<<"impossible"<<endl;
return;
}
--p;
int ans = p+1;
int l = 0;
while(p < n){
while(l < p && cnt[a[l]] > c[a[l]]){
cnt[a[l]]--;
++l;
}
ans = min(ans, p-l+1);
++p;
if(p < n){
cnt[a[p]]++;
}
}
cout<<ans<<endl;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
solve();
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
1 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
328 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
2 ms |
372 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
2 ms |
332 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
328 KB |
Output is correct |
12 |
Correct |
1 ms |
324 KB |
Output is correct |
13 |
Correct |
1 ms |
328 KB |
Output is correct |
14 |
Correct |
1 ms |
332 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
17 ms |
1484 KB |
Output is correct |
2 |
Correct |
18 ms |
1464 KB |
Output is correct |
3 |
Correct |
19 ms |
1484 KB |
Output is correct |
4 |
Correct |
22 ms |
1428 KB |
Output is correct |
5 |
Correct |
28 ms |
2468 KB |
Output is correct |
6 |
Correct |
17 ms |
1380 KB |
Output is correct |
7 |
Correct |
18 ms |
1612 KB |
Output is correct |
8 |
Correct |
26 ms |
3064 KB |
Output is correct |
9 |
Correct |
21 ms |
2064 KB |
Output is correct |
10 |
Correct |
20 ms |
1440 KB |
Output is correct |
11 |
Correct |
2 ms |
328 KB |
Output is correct |
12 |
Correct |
2 ms |
332 KB |
Output is correct |
13 |
Correct |
2 ms |
332 KB |
Output is correct |
14 |
Correct |
2 ms |
332 KB |
Output is correct |
15 |
Correct |
2 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
324 KB |
Output is correct |
17 |
Correct |
1 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
320 KB |
Output is correct |
19 |
Correct |
1 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
324 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
3488 KB |
Output is correct |
2 |
Correct |
33 ms |
3136 KB |
Output is correct |
3 |
Correct |
27 ms |
2856 KB |
Output is correct |
4 |
Correct |
17 ms |
1432 KB |
Output is correct |
5 |
Correct |
39 ms |
3980 KB |
Output is correct |
6 |
Correct |
43 ms |
4500 KB |
Output is correct |
7 |
Correct |
21 ms |
2052 KB |
Output is correct |
8 |
Correct |
26 ms |
2400 KB |
Output is correct |
9 |
Correct |
16 ms |
1428 KB |
Output is correct |
10 |
Correct |
17 ms |
1404 KB |
Output is correct |
11 |
Correct |
18 ms |
1484 KB |
Output is correct |
12 |
Correct |
19 ms |
1392 KB |
Output is correct |
13 |
Correct |
23 ms |
2500 KB |
Output is correct |
14 |
Correct |
18 ms |
1396 KB |
Output is correct |
15 |
Correct |
23 ms |
1604 KB |
Output is correct |
16 |
Correct |
25 ms |
3100 KB |
Output is correct |
17 |
Correct |
21 ms |
1996 KB |
Output is correct |
18 |
Correct |
17 ms |
1484 KB |
Output is correct |
19 |
Correct |
1 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
332 KB |
Output is correct |
21 |
Correct |
2 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
336 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
2 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
2 ms |
320 KB |
Output is correct |
29 |
Correct |
1 ms |
332 KB |
Output is correct |
30 |
Correct |
1 ms |
332 KB |
Output is correct |
31 |
Correct |
1 ms |
332 KB |
Output is correct |
32 |
Correct |
1 ms |
332 KB |
Output is correct |
33 |
Correct |
1 ms |
332 KB |
Output is correct |