답안 #1111345

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1111345	2024-11-12T07:04:48 Z	vjudge1	JJOOII 2 (JOI20_ho_t2)	C++17	100 / 100	14 ms	4604 KB

ho_t2

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define f first
#define s second
#define pll pair<ll, ll>
ll n, k, pO[200001], pJ[200001], pI[200001], ans=1e18;
string str;
vector<ll> J, I;


int main(){
    cin >> n >> k;
    cin >> str;
    for(int i=1; i<=n; i++){
        if(str[i-1]=='J')
            J.push_back(i);
        if(str[i-1]=='I')
            I.push_back(i);
        if(str[i-1]=='O')pO[i]=pO[i-1]+1;
        else pO[i]=pO[i-1];
    }
    if(J.size()<k || I.size()<k || pO[n]<k){
        cout << -1 << endl;
        return 0;
    }
    for(int i=J.size()-1; i>=k-1; i--){
        int l=0, r=I.size()-1, mid, back=-1;
        while(l<=r){
            mid=(l+r)/2;
            if(pO[I[mid]]-pO[J[i]]<k){
                l=mid+1;
            }else{
                back=mid;
                r=mid-1;
            }
        }
        if(back==-1 || I.size() - back < k)continue;
        ans=min(ans, I[back+k-1]-J[i-k+1]+1-3*k);
    }
    if(ans==1e18)ans=-1;
    cout << ans << endl;
}

Compilation message

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:23:16: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   23 |     if(J.size()<k || I.size()<k || pO[n]<k){
      |        ~~~~~~~~^~
ho_t2.cpp:23:30: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   23 |     if(J.size()<k || I.size()<k || pO[n]<k){
      |                      ~~~~~~~~^~
ho_t2.cpp:38:40: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   38 |         if(back==-1 || I.size() - back < k)continue;
      |                        ~~~~~~~~~~~~~~~~^~~

Subtask #1
1.0 / 1.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 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	508 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	504 KB	Output is correct
12	Correct	1 ms	336 KB	Output is correct
13	Correct	1 ms	336 KB	Output is correct
14	Correct	1 ms	336 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 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	508 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	504 KB	Output is correct
12	Correct	1 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
16	Correct	1 ms	336 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	1 ms	336 KB	Output is correct
24	Correct	1 ms	336 KB	Output is correct
25	Correct	1 ms	336 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	1 ms	504 KB	Output is correct
32	Correct	1 ms	336 KB	Output is correct
33	Correct	1 ms	336 KB	Output is correct
34	Correct	1 ms	504 KB	Output is correct
35	Correct	1 ms	336 KB	Output is correct

Subtask #3
87.0 / 87.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	336 KB	Output is correct
2	Correct	1 ms	336 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	336 KB	Output is correct
5	Correct	1 ms	336 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	508 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	336 KB	Output is correct
11	Correct	1 ms	504 KB	Output is correct
12	Correct	1 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
16	Correct	1 ms	336 KB	Output is correct
17	Correct	1 ms	336 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	336 KB	Output is correct
20	Correct	1 ms	336 KB	Output is correct
21	Correct	1 ms	336 KB	Output is correct
22	Correct	1 ms	336 KB	Output is correct
23	Correct	1 ms	336 KB	Output is correct
24	Correct	1 ms	336 KB	Output is correct
25	Correct	1 ms	336 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	336 KB	Output is correct
28	Correct	1 ms	336 KB	Output is correct
29	Correct	1 ms	336 KB	Output is correct
30	Correct	1 ms	336 KB	Output is correct
31	Correct	1 ms	504 KB	Output is correct
32	Correct	1 ms	336 KB	Output is correct
33	Correct	1 ms	336 KB	Output is correct
34	Correct	1 ms	504 KB	Output is correct
35	Correct	1 ms	336 KB	Output is correct
36	Correct	9 ms	3180 KB	Output is correct
37	Correct	11 ms	4012 KB	Output is correct
38	Correct	11 ms	3996 KB	Output is correct
39	Correct	10 ms	4032 KB	Output is correct
40	Correct	14 ms	3856 KB	Output is correct
41	Correct	14 ms	3936 KB	Output is correct
42	Correct	11 ms	4028 KB	Output is correct
43	Correct	7 ms	2396 KB	Output is correct
44	Correct	8 ms	2724 KB	Output is correct
45	Correct	10 ms	4060 KB	Output is correct
46	Correct	9 ms	4028 KB	Output is correct
47	Correct	9 ms	3940 KB	Output is correct
48	Correct	9 ms	3884 KB	Output is correct
49	Correct	7 ms	2644 KB	Output is correct
50	Correct	10 ms	3924 KB	Output is correct
51	Correct	11 ms	4028 KB	Output is correct
52	Correct	7 ms	3468 KB	Output is correct
53	Correct	8 ms	3924 KB	Output is correct
54	Correct	8 ms	4436 KB	Output is correct
55	Correct	8 ms	4604 KB	Output is correct
56	Correct	7 ms	4436 KB	Output is correct

답안 #1111345

Compilation message

Subtask #1 1.0 / 1.0

Subtask #2 12.0 / 12.0

Subtask #3 87.0 / 87.0

Subtask #1
1.0 / 1.0

Subtask #2
12.0 / 12.0

Subtask #3
87.0 / 87.0