oj.uz

Submission #888164

# Submission time Handle Problem Language Result Execution time Memory
888164 2023-12-16T09:12:54 Z Unforgettablepl JJOOII 2 (JOI20_ho_t2) C++17
100 / 100
 21 ms 5340 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
const int INF = INT64_MAX;

int prefix[200001][3];

int32_t main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int n,k;
    cin >> n >> k;
    for(int i=1;i<=n;i++){
        char a;cin>>a;
        prefix[i][0]=prefix[i-1][0];
        prefix[i][1]=prefix[i-1][1];
        prefix[i][2]=prefix[i-1][2];
        if(a=='J')prefix[i][0]++;
        else if(a=='O')prefix[i][1]++;
        else prefix[i][2]++;
    }
    int ans = INF;
    for(int l=1;l<=n;l++){
        if(prefix[l][0]-prefix[l-1][0]==0)continue;
        if(prefix[n][0]-prefix[l-1][0]<k)break;
        int mid1 = l-1;
        for(int jump=131072;jump;jump/=2){
            if(mid1+jump>n)continue;
            if(prefix[mid1+jump][0]-prefix[l-1][0]<k)mid1+=jump;
        }
        mid1++;
        if(prefix[n][1]-prefix[mid1-1][1]<k)break;
        int mid2 = mid1-1;
        for(int jump=131072;jump;jump/=2){
            if(mid2+jump>n)continue;
            if(prefix[mid2+jump][1]-prefix[mid1-1][1]<k)mid2+=jump;
        }
        mid2++;
        if(prefix[n][2]-prefix[mid2-1][2]<k)break;
        int r = mid2-1;
        for(int jump=131072;jump;jump/=2){
            if(r+jump>n)continue;
            if(prefix[r+jump][2]-prefix[mid2-1][2]<k)r+=jump;
        }
        r++;
        ans = min(ans,r-l);
    }
    if(ans==INF)cout << "-1\n";
    else cout << ans+1-3*k << '\n';
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 484 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 600 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 484 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 600 KB Output is correct
36 Correct 17 ms 4700 KB Output is correct
37 Correct 19 ms 5160 KB Output is correct
38 Correct 19 ms 4956 KB Output is correct
39 Correct 18 ms 5112 KB Output is correct
40 Correct 8 ms 4956 KB Output is correct
41 Correct 15 ms 4956 KB Output is correct
42 Correct 21 ms 5156 KB Output is correct
43 Correct 3 ms 4700 KB Output is correct
44 Correct 4 ms 4748 KB Output is correct
45 Correct 5 ms 4956 KB Output is correct
46 Correct 6 ms 5140 KB Output is correct
47 Correct 5 ms 4956 KB Output is correct
48 Correct 5 ms 5004 KB Output is correct
49 Correct 3 ms 4700 KB Output is correct
50 Correct 5 ms 4956 KB Output is correct
51 Correct 5 ms 4956 KB Output is correct
52 Correct 4 ms 4956 KB Output is correct
53 Correct 5 ms 4956 KB Output is correct
54 Correct 19 ms 5160 KB Output is correct
55 Correct 8 ms 5208 KB Output is correct
56 Correct 3 ms 5340 KB Output is correct