답안 #476335

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
476335	2021-09-26T04:45:08 Z	palilo	스탬프 수집 (JOI16_ho_t2)	C++17	100 / 100	3 ms	588 KB

2016_ho_t2

#include <bits/stdc++.h>
using namespace std;

template <class T>
bool chmin(T& _old, T _new) { return _old > _new && (_old = _new, true); }
template <class T>
bool chmax(T& _old, T _new) { return _old < _new && (_old = _new, true); }

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
#ifdef palilo
    freopen("in", "r", stdin);
    freopen("out", "w", stdout);
#endif
    int n;
    string s;
    cin >> n >> s;
    int64_t ans = 0, cur = 0;
    {
        // case 'I'
        int64_t j = 0, o = 0;
        for (const auto& c : s) {
            if (c == 'J') {
                ++j;
            } else if (c == 'O') {
                o += j;
            } else {
                cur += o;
            }
        }
        ans = cur + o;
    }
    {
        // case 'J'
        int64_t j = 1, o = 0, res = 0;
        for (const auto& c : s) {
            if (c == 'J') {
                ++j;
            } else if (c == 'O') {
                o += j;
            } else {
                res += o;
            }
        }
        chmax(ans, res);
    }
    {
        // case 'O'
        int64_t j = 0, i = count(s.begin(), s.end(), 'I');
        for (const auto& c : s) {
            if (c == 'J') {
                ++j;
            } else if (c == 'I') {
                --i;
            }
            chmax(ans, cur + j * i);
        }
    }
    cout << ans;
}

Subtask #1

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	0 ms	312 KB	Output is correct
5	Correct	0 ms	320 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct

Subtask #2

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	0 ms	312 KB	Output is correct
5	Correct	0 ms	320 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	0 ms	204 KB	Output is correct
17	Correct	0 ms	316 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	0 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	320 KB	Output is correct
23	Correct	1 ms	216 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	0 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct

Subtask #3

50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	0 ms	312 KB	Output is correct
5	Correct	0 ms	320 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	0 ms	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	0 ms	204 KB	Output is correct
17	Correct	0 ms	316 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	0 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	320 KB	Output is correct
23	Correct	1 ms	216 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	204 KB	Output is correct
26	Correct	1 ms	204 KB	Output is correct
27	Correct	1 ms	204 KB	Output is correct
28	Correct	1 ms	204 KB	Output is correct
29	Correct	0 ms	204 KB	Output is correct
30	Correct	1 ms	204 KB	Output is correct
31	Correct	1 ms	584 KB	Output is correct
32	Correct	1 ms	588 KB	Output is correct
33	Correct	1 ms	588 KB	Output is correct
34	Correct	2 ms	588 KB	Output is correct
35	Correct	1 ms	588 KB	Output is correct
36	Correct	3 ms	588 KB	Output is correct
37	Correct	3 ms	588 KB	Output is correct
38	Correct	3 ms	588 KB	Output is correct
39	Correct	3 ms	588 KB	Output is correct
40	Correct	3 ms	588 KB	Output is correct
41	Correct	3 ms	588 KB	Output is correct
42	Correct	2 ms	588 KB	Output is correct
43	Correct	3 ms	588 KB	Output is correct
44	Correct	2 ms	588 KB	Output is correct
45	Correct	2 ms	588 KB	Output is correct