Submission #1114655

#	Time	Username	Problem	Language	Result	Execution time	Memory
1114655		AdamGS	JJOOII 2 (JOI20_ho_t2)	C++17	13 / 100	2064 ms	848 KiB

ho_t2

#include <iostream>
#include <algorithm>
using namespace std;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, k;
    cin>>n>>k;
    string s;
    cin>>s;
    int out=INT32_MAX;
    for (int i=0;i<n;i++){
        if (s[i]=='J'){
            int state=0;
            for (int j=i;j<n;j++){
                if ((s[j]=='J'&&state<k)||(s[j]=='O'&&state>=k&&state<2*k)||(s[j]=='I'&&state>=2*k)) state++;
                if (state==3*k) out=min(out, j-i+1-3*k);
            }
        }
    }
    cout<<(out==INT32_MAX?-1:out)<<'\n';
    return 0;
}

• Subtask 1: 1 / 1
• Subtask 2: 12 / 12
• Subtask 3: 0 / 87