답안 #936927

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
936927	2024-03-03T04:03:02 Z	emanIaicepsa	Group Photo (JOI21_ho_t3)	C++14	64 / 100	5000 ms	98192 KB

Main

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define dbg(...) cerr<<#__VA_ARGS__<<" = ";_do(__VA_ARGS__);
template<typename T> void _do(T x){cerr<<x<<"\n";}
template<typename T,typename ...U> void _do(T x,U ...y){cerr<<x<<", ";_do(y...);}



signed main(){
    ios::sync_with_stdio(0), cin.tie(0);
    int N;
    cin >> N;
    vector<int> arr(N + 1), pos(N + 1);
    for (int i = 1; i <= N; i++) cin >> arr[i], pos[arr[i]] = i; 
    vector<vector<int>> dp(N + 1, vector<int>(N + 1, 0));
    dp[1][1] = 0;

    auto inv = [&](int up, int val, int p) -> int {
        int cnt = 0;
        for (int i = val; i <= up; i++) {
            if (pos[i] < p) cnt++;
        }
        for (int i = 0; i < val; i++) {
            if (pos[i] > p) cnt++;
        }
        return cnt;
    };

    for (int i = 2; i <= N; i++) {
        dp[i][i] = 1e9;
        for (int j = 1; j < i; j++) {
            dp[i][j] = dp[i - 1][j] + inv(i - 1, j, pos[i]);
            dp[i][i] = min(dp[i][i], dp[i - 1][j] + inv(i - 1, i, pos[i]));
        }
        for (int j = 1; j <= i; j++) {
            // dbg(i, j, dp[i][j]);
        }
    }

    int ans = 1e9;
    for (int i = 1; i <= N; i++) ans = min(ans, dp[N][i]);
    cout << ans << '\n';


}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	604 KB	Output is correct
2	Correct	0 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	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	604 KB	Output is correct
2	Correct	0 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	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	344 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	344 KB	Output is correct
15	Correct	1 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	1 ms	344 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	604 KB	Output is correct
2	Correct	0 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	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	344 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	344 KB	Output is correct
15	Correct	1 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	1 ms	344 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	4 ms	604 KB	Output is correct
22	Correct	4 ms	604 KB	Output is correct
23	Correct	4 ms	604 KB	Output is correct
24	Correct	4 ms	604 KB	Output is correct
25	Correct	4 ms	624 KB	Output is correct
26	Correct	5 ms	600 KB	Output is correct
27	Correct	7 ms	600 KB	Output is correct
28	Correct	4 ms	604 KB	Output is correct
29	Correct	4 ms	456 KB	Output is correct
30	Correct	4 ms	604 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	604 KB	Output is correct
2	Correct	0 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	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	344 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	344 KB	Output is correct
15	Correct	1 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	1 ms	344 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	4 ms	604 KB	Output is correct
22	Correct	4 ms	604 KB	Output is correct
23	Correct	4 ms	604 KB	Output is correct
24	Correct	4 ms	604 KB	Output is correct
25	Correct	4 ms	624 KB	Output is correct
26	Correct	5 ms	600 KB	Output is correct
27	Correct	7 ms	600 KB	Output is correct
28	Correct	4 ms	604 KB	Output is correct
29	Correct	4 ms	456 KB	Output is correct
30	Correct	4 ms	604 KB	Output is correct
31	Correct	217 ms	2980 KB	Output is correct
32	Correct	236 ms	2976 KB	Output is correct
33	Correct	213 ms	2984 KB	Output is correct
34	Correct	251 ms	2988 KB	Output is correct
35	Correct	219 ms	2980 KB	Output is correct
36	Correct	219 ms	2988 KB	Output is correct
37	Correct	217 ms	2980 KB	Output is correct
38	Correct	226 ms	2996 KB	Output is correct
39	Correct	215 ms	2980 KB	Output is correct
40	Correct	221 ms	2984 KB	Output is correct

Subtask #5
0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	604 KB	Output is correct
2	Correct	0 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	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	344 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	344 KB	Output is correct
15	Correct	1 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	1 ms	344 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	4 ms	604 KB	Output is correct
22	Correct	4 ms	604 KB	Output is correct
23	Correct	4 ms	604 KB	Output is correct
24	Correct	4 ms	604 KB	Output is correct
25	Correct	4 ms	624 KB	Output is correct
26	Correct	5 ms	600 KB	Output is correct
27	Correct	7 ms	600 KB	Output is correct
28	Correct	4 ms	604 KB	Output is correct
29	Correct	4 ms	456 KB	Output is correct
30	Correct	4 ms	604 KB	Output is correct
31	Correct	217 ms	2980 KB	Output is correct
32	Correct	236 ms	2976 KB	Output is correct
33	Correct	213 ms	2984 KB	Output is correct
34	Correct	251 ms	2988 KB	Output is correct
35	Correct	219 ms	2980 KB	Output is correct
36	Correct	219 ms	2988 KB	Output is correct
37	Correct	217 ms	2980 KB	Output is correct
38	Correct	226 ms	2996 KB	Output is correct
39	Correct	215 ms	2980 KB	Output is correct
40	Correct	221 ms	2984 KB	Output is correct
41	Execution timed out	5020 ms	98192 KB	Time limit exceeded
42	Halted	0 ms	0 KB	-

답안 #936927

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 7.0 / 7.0

Subtask #3 32.0 / 32.0

Subtask #4 20.0 / 20.0

Subtask #5 0 / 36.0

Subtask #1
5.0 / 5.0

Subtask #2
7.0 / 7.0

Subtask #3
32.0 / 32.0

Subtask #4
20.0 / 20.0

Subtask #5
0 / 36.0