#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize ("unroll-loops,Ofast,O3")
#pragma GCC target("avx,avx2,fma")
#define F first
#define S second
#define sz(x) (int)x.size()
#define pb push_back
#define eb emplace_back
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define NFS ios_base::sync_with_stdio(0) , cin.tie(0) , cout.tie(0) ;
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
typedef long long ll;
//random_device(rd);
//mt19937 rng(rd());
//const long long FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
//template<class T> T randomize(T mod){
// return (uniform_int_distribution<T>(0, mod))(rng);
//}
const int E = 1e6+777;
const long long inf = 1e18+777;
const int N = 2e5+777;
const int MOD = 1e9+7;
const bool I = 0;
int n, k, r, a[N], need[N], have[N], sum;
int main(){const auto solve=[&]() -> void{
cin >> n >> k >> r;
for(int i = 1; i <= n; ++i){
cin >> a[i];
}
for(int i = 0; i < r; ++i){
int id, val;
cin >> id >> val;
need[id] = val;
}
int R = 0, res = INT_MAX;
for(int L = 1; L <= n; ++L){
while(R < L - 1){
if(need[a[R]] == have[a[R]]){
--sum;
}
--have[R];
++R;
}
while(sum < r && R + 1 <= n){
++R;
++have[a[R]];
if(need[a[R]] == have[a[R]]){
++sum;
}
// cerr << "R: " << R << " have["<<a[R]<<"]: " << have[a[R]] << " sum: " << sum << '\n';
}
if(sum == r)
res = min(res, R - L + 1);
cerr << "L: " << L << " R: " << R << " sum: " << sum << '\n';
if(need[a[L]] == have[a[L]]){
--sum;
}
--have[a[L]];
}
if(res == INT_MAX) cout << "impossible";
else cout << res;
};NFS;int T=1;if(I)cin>>T;while(T--)solve();}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
208 KB |
Output is correct |
2 |
Correct |
2 ms |
304 KB |
Output is correct |
3 |
Correct |
1 ms |
312 KB |
Output is correct |
4 |
Correct |
1 ms |
336 KB |
Output is correct |
5 |
Correct |
1 ms |
328 KB |
Output is correct |
6 |
Correct |
1 ms |
336 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
336 KB |
Output is correct |
9 |
Correct |
1 ms |
336 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
36 ms |
336 KB |
Output is correct |
2 |
Correct |
32 ms |
336 KB |
Output is correct |
3 |
Correct |
33 ms |
412 KB |
Output is correct |
4 |
Correct |
33 ms |
456 KB |
Output is correct |
5 |
Correct |
32 ms |
456 KB |
Output is correct |
6 |
Correct |
35 ms |
464 KB |
Output is correct |
7 |
Correct |
1 ms |
336 KB |
Output is correct |
8 |
Correct |
1 ms |
336 KB |
Output is correct |
9 |
Correct |
2 ms |
320 KB |
Output is correct |
10 |
Correct |
2 ms |
320 KB |
Output is correct |
11 |
Correct |
1 ms |
336 KB |
Output is correct |
12 |
Correct |
0 ms |
336 KB |
Output is correct |
13 |
Correct |
1 ms |
336 KB |
Output is correct |
14 |
Correct |
1 ms |
336 KB |
Output is correct |
15 |
Correct |
1 ms |
336 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1585 ms |
6704 KB |
Output is correct |
2 |
Correct |
1621 ms |
6720 KB |
Output is correct |
3 |
Correct |
1618 ms |
6880 KB |
Output is correct |
4 |
Correct |
1587 ms |
6856 KB |
Output is correct |
5 |
Correct |
1585 ms |
7940 KB |
Output is correct |
6 |
Correct |
1581 ms |
6720 KB |
Output is correct |
7 |
Correct |
1564 ms |
6896 KB |
Output is correct |
8 |
Correct |
1583 ms |
8496 KB |
Output is correct |
9 |
Correct |
1565 ms |
7476 KB |
Output is correct |
10 |
Correct |
1588 ms |
6788 KB |
Output is correct |
11 |
Correct |
32 ms |
336 KB |
Output is correct |
12 |
Correct |
33 ms |
392 KB |
Output is correct |
13 |
Correct |
33 ms |
456 KB |
Output is correct |
14 |
Correct |
32 ms |
464 KB |
Output is correct |
15 |
Correct |
32 ms |
336 KB |
Output is correct |
16 |
Correct |
34 ms |
392 KB |
Output is correct |
17 |
Correct |
1 ms |
336 KB |
Output is correct |
18 |
Correct |
2 ms |
336 KB |
Output is correct |
19 |
Correct |
2 ms |
304 KB |
Output is correct |
20 |
Correct |
1 ms |
328 KB |
Output is correct |
21 |
Correct |
2 ms |
312 KB |
Output is correct |
22 |
Correct |
1 ms |
320 KB |
Output is correct |
23 |
Correct |
2 ms |
336 KB |
Output is correct |
24 |
Correct |
2 ms |
336 KB |
Output is correct |
25 |
Correct |
2 ms |
208 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1604 ms |
9484 KB |
Output is correct |
2 |
Correct |
1610 ms |
9192 KB |
Output is correct |
3 |
Correct |
1605 ms |
8904 KB |
Output is correct |
4 |
Correct |
1619 ms |
6740 KB |
Output is correct |
5 |
Correct |
1606 ms |
9276 KB |
Output is correct |
6 |
Correct |
1695 ms |
10752 KB |
Output is correct |
7 |
Correct |
1694 ms |
7944 KB |
Output is correct |
8 |
Correct |
1885 ms |
8476 KB |
Output is correct |
9 |
Correct |
1831 ms |
6736 KB |
Output is correct |
10 |
Correct |
1767 ms |
6752 KB |
Output is correct |
11 |
Correct |
1792 ms |
6412 KB |
Output is correct |
12 |
Correct |
1712 ms |
6444 KB |
Output is correct |
13 |
Correct |
1608 ms |
6836 KB |
Output is correct |
14 |
Correct |
1614 ms |
6428 KB |
Output is correct |
15 |
Correct |
1672 ms |
6416 KB |
Output is correct |
16 |
Correct |
1619 ms |
7316 KB |
Output is correct |
17 |
Correct |
1571 ms |
6468 KB |
Output is correct |
18 |
Correct |
1621 ms |
6456 KB |
Output is correct |
19 |
Correct |
31 ms |
360 KB |
Output is correct |
20 |
Correct |
32 ms |
332 KB |
Output is correct |
21 |
Correct |
32 ms |
432 KB |
Output is correct |
22 |
Correct |
35 ms |
460 KB |
Output is correct |
23 |
Correct |
32 ms |
388 KB |
Output is correct |
24 |
Correct |
32 ms |
392 KB |
Output is correct |
25 |
Correct |
1 ms |
204 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
27 |
Correct |
1 ms |
332 KB |
Output is correct |
28 |
Correct |
1 ms |
204 KB |
Output is correct |
29 |
Correct |
1 ms |
332 KB |
Output is correct |
30 |
Correct |
0 ms |
204 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 |