oj.uz

답안 #964059

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
964059 2024-04-16T09:06:40 Z Akshat369 JJOOII 2 (JOI20_ho_t2) C++17
100 / 100
 17 ms 5924 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define vi vector<int>
#define endl '\n'
const int N = (int)1e5+5;


void Solve(){
    int n , k; cin>>n>>k;
    string s; cin>>s;
    deque<char> st;
    for(auto &i : s){
        st.push_back(i);
    }
    while (!st.empty() and st.front()!='J'){
        st.pop_front();
    }
    while(!st.empty() and st.back() != 'I'){
        st.pop_back();
    }
    if(st.empty()){
        cout<<-1<<endl;
        return;
    }
    s = " " + s;
    vi prej(n+1) , prei(n+1) , preo(n+1);

    for(int i = 1 ; i <= n ; i++){
        prej[i] = prej[i-1] + (s[i]=='J');
        prei[i] = prei[i-1] + (s[i]=='I');
        preo[i] = preo[i-1] + (s[i]=='O');
    }
//    cout<<"j"<<" ";
//    for(int i = 1 ; i<= n ; i++){
//        cout<<prej[i]<<" ";
//    }
//    cout<<endl;
//    cout<<"o"<<" ";
//    for(int i = 1 ; i<= n ; i++){
//        cout<<preo[i]<<" ";
//    }
//    cout<<endl;
//    cout<<"i"<<" ";
//    for(int i = 1 ; i<= n ; i++){
//        cout<<prei[i]<<" ";
//    }
//    cout<<endl;
    int ans = 1e18;
    for (int i = 1; i <= n; ++i) {
        if (s[i]=='J'){
            int j = lower_bound(prej.begin(), prej.end(),prej[i-1]+k) - prej.begin();
           // cout<<i<<" "<<j<<" " << preo[j]+k <<endl;
            if (j>=n+1)continue;
            int o = lower_bound(preo.begin(), preo.end(),preo[j]+k) - preo.begin();
          //  cout<<j<<" "<<o<<endl;
            if(o>=n+1) continue;
            int ii = lower_bound(prei.begin(), prei.end(),prei[o]+k) - prei.begin();
            if(ii>=n+1) continue;
            int temp = (ii-i+1 - (3*k));
           // cout<<temp<<endl;
            ans = min(ans,temp);
        }
    }
    if(ans>=1e18){
        cout<<-1<<endl;
        return;
    }
    cout<<ans<<endl;
}

int32_t main(){

    Solve();
}

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 432 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 600 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 432 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 600 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 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 1 ms 348 KB Output is correct
25 Correct 1 ms 600 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 436 KB Output is correct
28 Correct 1 ms 592 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 1 ms 356 KB Output is correct

Subtask #3
87.0 / 87.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 432 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 600 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 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 1 ms 348 KB Output is correct
25 Correct 1 ms 600 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 436 KB Output is correct
28 Correct 1 ms 592 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 344 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 1 ms 356 KB Output is correct
36 Correct 17 ms 5172 KB Output is correct
37 Correct 17 ms 5748 KB Output is correct
38 Correct 17 ms 5672 KB Output is correct
39 Correct 16 ms 5924 KB Output is correct
40 Correct 13 ms 5668 KB Output is correct
41 Correct 15 ms 5672 KB Output is correct
42 Correct 17 ms 5748 KB Output is correct
43 Correct 8 ms 3692 KB Output is correct
44 Correct 11 ms 4556 KB Output is correct
45 Correct 12 ms 5672 KB Output is correct
46 Correct 12 ms 5748 KB Output is correct
47 Correct 13 ms 5752 KB Output is correct
48 Correct 12 ms 5672 KB Output is correct
49 Correct 8 ms 3944 KB Output is correct
50 Correct 13 ms 5672 KB Output is correct
51 Correct 12 ms 5748 KB Output is correct
52 Correct 8 ms 5416 KB Output is correct
53 Correct 9 ms 5704 KB Output is correct
54 Correct 11 ms 5668 KB Output is correct
55 Correct 9 ms 5708 KB Output is correct
56 Correct 7 ms 5672 KB Output is correct