oj.uz

Submission #535724

# Submission time Handle Problem Language Result Execution time Memory
535724 2022-03-11T03:17:34 Z sam571128 Group Photo (JOI21_ho_t3) C++17
12 / 100
 1896 ms 312 KB 
#include <bits/stdc++.h>

#define int long long
#define fastio ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

using namespace std;

signed main(){
    fastio
    int n;
    cin >> n;

    int arr[n], tmp[n], idk[n];
    for(auto &x : arr) cin >> x;

    int ans = 1e18;

    for(int mask = 0; mask < (1<<n); mask++){
        vector<int> v;
        for(int i = 0;i < n;i++){
            if(mask&(1<<i)) v.push_back(i);
        }

        for(int i = 0;i < n;i++){
            tmp[i] = i+1;
        }

        for(int i = 1;i < v.size();i += 2){
            reverse(tmp+v[i-1],tmp+v[i]+1);
        }

        for(int i = 0;i < n;i++){
            for(int j = 0;j < n;j++){
                if(tmp[i]==arr[j]) idk[i] = j;
            }
        }

        int cnt = 0;

        for(int i = 0;i < n;i++){
            for(int j = 0;j < i;j++){
                if(idk[j] > idk[i]){
                    cnt++;
                }
            }
        }
        ans = min(ans,cnt);
    }

    cout << ans << "\n";
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:28:25: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         for(int i = 1;i < v.size();i += 2){
      |                       ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 386 ms 296 KB Output is correct
12 Correct 741 ms 308 KB Output is correct
13 Correct 868 ms 308 KB Output is correct
14 Correct 1896 ms 312 KB Output is correct
15 Correct 1697 ms 296 KB Output is correct
16 Correct 1736 ms 308 KB Output is correct
17 Correct 1525 ms 300 KB Output is correct
18 Correct 1630 ms 304 KB Output is correct
19 Correct 1775 ms 308 KB Output is correct
20 Correct 1689 ms 300 KB Output is correct

Subtask #3
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 386 ms 296 KB Output is correct
12 Correct 741 ms 308 KB Output is correct
13 Correct 868 ms 308 KB Output is correct
14 Correct 1896 ms 312 KB Output is correct
15 Correct 1697 ms 296 KB Output is correct
16 Correct 1736 ms 308 KB Output is correct
17 Correct 1525 ms 300 KB Output is correct
18 Correct 1630 ms 304 KB Output is correct
19 Correct 1775 ms 308 KB Output is correct
20 Correct 1689 ms 300 KB Output is correct
21 Incorrect 7 ms 212 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 386 ms 296 KB Output is correct
12 Correct 741 ms 308 KB Output is correct
13 Correct 868 ms 308 KB Output is correct
14 Correct 1896 ms 312 KB Output is correct
15 Correct 1697 ms 296 KB Output is correct
16 Correct 1736 ms 308 KB Output is correct
17 Correct 1525 ms 300 KB Output is correct
18 Correct 1630 ms 304 KB Output is correct
19 Correct 1775 ms 308 KB Output is correct
20 Correct 1689 ms 300 KB Output is correct
21 Incorrect 7 ms 212 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 386 ms 296 KB Output is correct
12 Correct 741 ms 308 KB Output is correct
13 Correct 868 ms 308 KB Output is correct
14 Correct 1896 ms 312 KB Output is correct
15 Correct 1697 ms 296 KB Output is correct
16 Correct 1736 ms 308 KB Output is correct
17 Correct 1525 ms 300 KB Output is correct
18 Correct 1630 ms 304 KB Output is correct
19 Correct 1775 ms 308 KB Output is correct
20 Correct 1689 ms 300 KB Output is correct
21 Incorrect 7 ms 212 KB Output isn't correct
22 Halted 0 ms 0 KB -