답안 #995261

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
995261	2024-06-08T17:47:41 Z	gmroh06	JJOOII 2 (JOI20_ho_t2)	C++14	100 / 100	6 ms	5028 KB

ho_t2

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using pll = pair<ll, ll>;

inline void fastio() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
}

const ll INF = 1e16;

ll n, k, ans = INF;
vector<ll> a, b, v;
string s;

int main() {
    fastio();

    cin >> n >> k >> s;

    a.resize(n + 2);
    b.resize(n + 2);

    a[0] = b[n + 1] = -1;

    for (ll i = 1; i <= n; i++) {
        if (s[i - 1] == 'J') {
            v.emplace_back(i);
        }

        if (v.size() < k) {
            a[i] = -1;
        } else {
            a[i] = *(v.end() - k);
        }
    }

    v.clear();

    for (ll i = n; i > 0; i--) {
        if (s[i - 1] == 'I') {
            v.emplace_back(i);
        }

        if (v.size() < k) {
            b[i] = -1;
        } else {
            b[i] = *(v.end() - k);
        }
    }

    v.clear();

    for (ll i = 1; i <= n; i++) {
        if (s[i - 1] == 'O') {
            v.emplace_back(i);
        }

        if (v.size() < k) {
            continue;
        }

        ll l = a[*(v.end() - k) - 1], r = b[i + 1];

        if (l > -1 and r > -1) {
            ans = min(ans, r - l + 1);
        }
    }

    cout << (ans == INF ? -1 : ans - 3 * k);

    return 0;
}

Compilation message

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:34:22: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   34 |         if (v.size() < k) {
      |             ~~~~~~~~~^~~
ho_t2.cpp:48:22: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   48 |         if (v.size() < k) {
      |             ~~~~~~~~~^~~
ho_t2.cpp:62:22: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   62 |         if (v.size() < k) {
      |             ~~~~~~~~~^~~

Subtask #1
1.0 / 1.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 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	344 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

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 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	344 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	0 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	348 KB	Output is correct
20	Correct	0 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	344 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	604 KB	Output is correct
28	Correct	0 ms	452 KB	Output is correct
29	Correct	0 ms	452 KB	Output is correct
30	Correct	0 ms	344 KB	Output is correct
31	Correct	0 ms	348 KB	Output is correct
32	Correct	1 ms	348 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	0 ms	348 KB	Output is correct
35	Correct	0 ms	348 KB	Output is correct

Subtask #3
87.0 / 87.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 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	344 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	0 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	348 KB	Output is correct
20	Correct	0 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	344 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	604 KB	Output is correct
28	Correct	0 ms	452 KB	Output is correct
29	Correct	0 ms	452 KB	Output is correct
30	Correct	0 ms	344 KB	Output is correct
31	Correct	0 ms	348 KB	Output is correct
32	Correct	1 ms	348 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	0 ms	348 KB	Output is correct
35	Correct	0 ms	348 KB	Output is correct
36	Correct	5 ms	4196 KB	Output is correct
37	Correct	6 ms	5028 KB	Output is correct
38	Correct	6 ms	4960 KB	Output is correct
39	Correct	5 ms	4960 KB	Output is correct
40	Correct	6 ms	4960 KB	Output is correct
41	Correct	6 ms	4956 KB	Output is correct
42	Correct	5 ms	4956 KB	Output is correct
43	Correct	4 ms	3356 KB	Output is correct
44	Correct	4 ms	3736 KB	Output is correct
45	Correct	6 ms	4960 KB	Output is correct
46	Correct	5 ms	4960 KB	Output is correct
47	Correct	6 ms	4960 KB	Output is correct
48	Correct	6 ms	4960 KB	Output is correct
49	Correct	4 ms	3428 KB	Output is correct
50	Correct	5 ms	4984 KB	Output is correct
51	Correct	5 ms	4960 KB	Output is correct
52	Correct	5 ms	4452 KB	Output is correct
53	Correct	5 ms	4960 KB	Output is correct
54	Correct	3 ms	4988 KB	Output is correct
55	Correct	3 ms	4960 KB	Output is correct
56	Correct	4 ms	4984 KB	Output is correct

답안 #995261

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