#include <bits/stdc++.h>
using namespace std;
#define int long long
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
#define pb push_back
#define F first
#define S second
#define endl "\n"
const int INF = 1e9+10;
const int MOD = 1e9+7;
int n, k, t;
int v[200020];
int need[200020];
int32_t main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cin >> n >> k >> t;
for(int i = 0; i < n; i++) {
cin >> v[i];
}
for(int i = 0; i < t; i++) {
int a, b; cin >> a >> b;
need[a] = b;
}
int l = 0, r = 0, ok = 0;
int cnt[200020] = {};
bool okay[200020] = {};
cnt[v[r]]++;
int resp = INF;
if(need[v[r]] != 0 and cnt[v[r]] >= need[v[r]]) {
ok++;
okay[v[r]] = true;
}
while(r < n) {
// cout << l << " " << r << endl;
// cout << v[l] << " " << v[r] << endl;
// cout << ok << endl << endl;
if(ok == t) {
resp = min(resp, r - l + 1);
cnt[v[l]]--;
if(need[v[l]] and cnt[v[l]] < need[v[l]] and okay[v[l]]) {
ok--;
okay[v[l]] = false;
}
l++;
} else {
r++;
cnt[v[r]]++;
if(need[v[r]] and cnt[v[r]] >= need[v[r]] and !okay[v[r]]) {
ok++;
okay[v[r]] = true;
}
}
}
if(resp == INF) cout << "impossible" << endl;
else cout << resp << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2004 KB |
Output is correct |
2 |
Correct |
2 ms |
2092 KB |
Output is correct |
3 |
Correct |
3 ms |
2004 KB |
Output is correct |
4 |
Correct |
2 ms |
2092 KB |
Output is correct |
5 |
Correct |
3 ms |
2004 KB |
Output is correct |
6 |
Correct |
3 ms |
2084 KB |
Output is correct |
7 |
Correct |
2 ms |
2004 KB |
Output is correct |
8 |
Correct |
2 ms |
2004 KB |
Output is correct |
9 |
Correct |
2 ms |
2088 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2132 KB |
Output is correct |
2 |
Correct |
2 ms |
2132 KB |
Output is correct |
3 |
Correct |
2 ms |
2132 KB |
Output is correct |
4 |
Correct |
2 ms |
2132 KB |
Output is correct |
5 |
Correct |
2 ms |
2100 KB |
Output is correct |
6 |
Correct |
2 ms |
2132 KB |
Output is correct |
7 |
Correct |
1 ms |
2088 KB |
Output is correct |
8 |
Correct |
2 ms |
2004 KB |
Output is correct |
9 |
Correct |
2 ms |
2004 KB |
Output is correct |
10 |
Correct |
2 ms |
2092 KB |
Output is correct |
11 |
Correct |
1 ms |
2004 KB |
Output is correct |
12 |
Correct |
1 ms |
2004 KB |
Output is correct |
13 |
Correct |
1 ms |
2004 KB |
Output is correct |
14 |
Correct |
1 ms |
2084 KB |
Output is correct |
15 |
Correct |
1 ms |
2004 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
12 ms |
3924 KB |
Output is correct |
2 |
Correct |
12 ms |
4032 KB |
Output is correct |
3 |
Correct |
14 ms |
4052 KB |
Output is correct |
4 |
Correct |
13 ms |
4012 KB |
Output is correct |
5 |
Correct |
19 ms |
4780 KB |
Output is correct |
6 |
Correct |
14 ms |
4016 KB |
Output is correct |
7 |
Correct |
13 ms |
4144 KB |
Output is correct |
8 |
Correct |
19 ms |
4964 KB |
Output is correct |
9 |
Correct |
16 ms |
4564 KB |
Output is correct |
10 |
Correct |
13 ms |
4024 KB |
Output is correct |
11 |
Correct |
2 ms |
2132 KB |
Output is correct |
12 |
Correct |
2 ms |
2100 KB |
Output is correct |
13 |
Correct |
2 ms |
2132 KB |
Output is correct |
14 |
Correct |
2 ms |
2132 KB |
Output is correct |
15 |
Correct |
2 ms |
2132 KB |
Output is correct |
16 |
Correct |
2 ms |
2132 KB |
Output is correct |
17 |
Correct |
1 ms |
2092 KB |
Output is correct |
18 |
Correct |
2 ms |
2092 KB |
Output is correct |
19 |
Correct |
1 ms |
2088 KB |
Output is correct |
20 |
Correct |
2 ms |
2004 KB |
Output is correct |
21 |
Correct |
1 ms |
2004 KB |
Output is correct |
22 |
Correct |
2 ms |
2004 KB |
Output is correct |
23 |
Correct |
1 ms |
2004 KB |
Output is correct |
24 |
Correct |
2 ms |
2004 KB |
Output is correct |
25 |
Correct |
1 ms |
2088 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
34 ms |
6052 KB |
Output is correct |
2 |
Correct |
31 ms |
5708 KB |
Output is correct |
3 |
Correct |
21 ms |
5332 KB |
Output is correct |
4 |
Correct |
12 ms |
3924 KB |
Output is correct |
5 |
Correct |
32 ms |
6504 KB |
Output is correct |
6 |
Correct |
37 ms |
7116 KB |
Output is correct |
7 |
Correct |
22 ms |
4640 KB |
Output is correct |
8 |
Correct |
20 ms |
4948 KB |
Output is correct |
9 |
Correct |
12 ms |
3924 KB |
Output is correct |
10 |
Correct |
12 ms |
3924 KB |
Output is correct |
11 |
Correct |
13 ms |
4052 KB |
Output is correct |
12 |
Correct |
13 ms |
4044 KB |
Output is correct |
13 |
Correct |
17 ms |
4764 KB |
Output is correct |
14 |
Correct |
11 ms |
4020 KB |
Output is correct |
15 |
Correct |
13 ms |
4180 KB |
Output is correct |
16 |
Correct |
21 ms |
4848 KB |
Output is correct |
17 |
Correct |
16 ms |
4556 KB |
Output is correct |
18 |
Correct |
13 ms |
4036 KB |
Output is correct |
19 |
Correct |
1 ms |
2088 KB |
Output is correct |
20 |
Correct |
1 ms |
2132 KB |
Output is correct |
21 |
Correct |
2 ms |
2100 KB |
Output is correct |
22 |
Correct |
3 ms |
2104 KB |
Output is correct |
23 |
Correct |
2 ms |
2132 KB |
Output is correct |
24 |
Correct |
2 ms |
2132 KB |
Output is correct |
25 |
Correct |
1 ms |
2004 KB |
Output is correct |
26 |
Correct |
1 ms |
2088 KB |
Output is correct |
27 |
Correct |
2 ms |
2088 KB |
Output is correct |
28 |
Correct |
1 ms |
2004 KB |
Output is correct |
29 |
Correct |
1 ms |
2004 KB |
Output is correct |
30 |
Correct |
2 ms |
2088 KB |
Output is correct |
31 |
Correct |
1 ms |
2004 KB |
Output is correct |
32 |
Correct |
2 ms |
2004 KB |
Output is correct |
33 |
Correct |
2 ms |
2132 KB |
Output is correct |