# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
821482 |
2023-08-11T10:46:37 Z |
Alihan_8 |
JJOOII 2 (JOI20_ho_t2) |
C++17 |
|
7 ms |
5984 KB |
#include <bits/stdc++.h>
using namespace std;
#define all(x) x.begin(), x.end()
#define pb push_back
#define ln '\n'
#define int long long
template <class _T>
bool chmin(_T &x, const _T &y){
bool flag = false;
if ( x > y ){
x = y; flag |= true;
}
return flag;
}
template <class _T>
bool chmax(_T &x, const _T &y){
bool flag = false;
if ( x < y ){
x = y; flag |= true;
}
return flag;
}
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int n, k; cin >> n >> k;
string s; cin >> s;
const int inf = 1e15 + 1;
vector <int> pf(n + 1, inf), sf(n + 1, inf);
deque <int> dq;
for ( int i = 0; i < n; i++ ){
if ( s[i] == 'J' ){
dq.pb(i);
}
if ( (int)dq.size() > k ){
dq.pop_front();
}
if ( (int)dq.size() < k ){
continue;
}
pf[i + 1] = (i - dq[0] + 1) - k;
}
dq.clear();
for ( int i = n - 1; i >= 0; i-- ){
if ( s[i] == 'I' ){
dq.push_front(i);
}
if ( (int)dq.size() > k ){
dq.pop_back();
}
if ( (int)dq.size() < k ){
continue;
}
sf[i + 1] = (dq[k - 1] - i + 1) - k;
}
vector <int> dp(n + 2, inf);
for ( int i = n; i > 0; i-- ){
dp[i] = min(dp[i + 1], sf[i] + i);
}
int it = 1, f = 0, ans = inf;
for ( int i = 1; i <= n; i++ ){
if ( i > 1 ){
f -= (s[i - 1] == 'O');
}
while ( it + 1 <= n and f < k ){
f += (s[it] == 'O');
it++;
}
if ( f < k ){
break;
}
chmin(ans, (pf[i] - i) + dp[it + 1] - k - 1);
}
if ( ans > n ){
ans = -1;
}
cout << ans;
cout << '\n';
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
320 KB |
Output is correct |
2 |
Correct |
0 ms |
316 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
320 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
324 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
320 KB |
Output is correct |
2 |
Correct |
0 ms |
316 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
320 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
324 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
324 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
316 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
0 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
0 ms |
320 KB |
Output is correct |
25 |
Correct |
1 ms |
320 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
320 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
0 ms |
324 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
320 KB |
Output is correct |
2 |
Correct |
0 ms |
316 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
320 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
324 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
0 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
324 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
316 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
0 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
0 ms |
320 KB |
Output is correct |
25 |
Correct |
1 ms |
320 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
320 KB |
Output is correct |
28 |
Correct |
1 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
0 ms |
324 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
0 ms |
340 KB |
Output is correct |
36 |
Correct |
7 ms |
5068 KB |
Output is correct |
37 |
Correct |
7 ms |
5472 KB |
Output is correct |
38 |
Correct |
7 ms |
5460 KB |
Output is correct |
39 |
Correct |
7 ms |
5472 KB |
Output is correct |
40 |
Correct |
7 ms |
5472 KB |
Output is correct |
41 |
Correct |
7 ms |
5484 KB |
Output is correct |
42 |
Correct |
7 ms |
5472 KB |
Output is correct |
43 |
Correct |
4 ms |
3540 KB |
Output is correct |
44 |
Correct |
5 ms |
4320 KB |
Output is correct |
45 |
Correct |
7 ms |
5592 KB |
Output is correct |
46 |
Correct |
7 ms |
5600 KB |
Output is correct |
47 |
Correct |
7 ms |
5588 KB |
Output is correct |
48 |
Correct |
6 ms |
5600 KB |
Output is correct |
49 |
Correct |
5 ms |
3808 KB |
Output is correct |
50 |
Correct |
7 ms |
5588 KB |
Output is correct |
51 |
Correct |
6 ms |
5608 KB |
Output is correct |
52 |
Correct |
5 ms |
5600 KB |
Output is correct |
53 |
Correct |
6 ms |
5856 KB |
Output is correct |
54 |
Correct |
5 ms |
5440 KB |
Output is correct |
55 |
Correct |
5 ms |
5728 KB |
Output is correct |
56 |
Correct |
5 ms |
5984 KB |
Output is correct |