oj.uz

Submission #936927

# Submission time Handle Problem Language Result Execution time Memory
936927 2024-03-03T04:03:02 Z emanIaicepsa Group Photo (JOI21_ho_t3) C++14
64 / 100
 5000 ms 98192 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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 -