oj.uz

Submission #936753

# Submission time Handle Problem Language Result Execution time Memory
936753 2024-03-02T16:43:45 Z anton Group Photo (JOI21_ho_t3) C++17
12 / 100
 5000 ms 664 KB 
#include<bits/stdc++.h>

using namespace std;
#define int long long
#define pii pair<int, int>
vector<int> v;
vector<int> link;

void swap_pos(int lh, int rh){
    int vlh = v[lh];
    int vrh = v[rh];
    link[vlh] = rh;
    link[vrh] = lh;
    swap(v[lh], v[rh]);
}

int move(int id, int pos){
    //cout<<"move "<<id<<" "<<pos<<endl;
    int cpos= link[id];
    int res = 0;
    if(cpos!=pos){
        for(; cpos<pos; cpos++){
            swap_pos(cpos,cpos+1);
            res++;
        }
        for(; pos<cpos; cpos--){
            swap_pos(cpos, cpos-1);
            res++;
        }
    }
    return res;
}


int dp(int val, int end){
    //cout<<val<<" "<<end<<endl;
    for(auto e: v){
        //cout<<e<<" ";
    }
    //cout<<endl;
    if(val==0|| end == -1){
        return 0;
    }
    int res= 1e18;
    for(int i = 0; i<val; i++){   
        //cout<<"i is "<<i<<endl;   
        int c= 0;
        vector<int> begins;
        for(int j = val-i; j<=val; j++){
            begins.push_back(link[j]);
            c+=move(j, end+val-i-j);
        }
        res=min(dp(val-i-1, end-i-1)+c, res);
        for(int j = val; j>=val-i; j--){
            move(j, begins.back());
            begins.pop_back();
        }

    }
    return res;
}

signed main(){
    int n;
    cin>>n;
    v.resize(n);
    link.resize(n+1);
    int res= 0;
    for(int i = 0; i<n; i++){
        cin>>v[i];
        link[v[i]] = i;
    }

    cout<<dp(n,n-1)<<endl;
    
}

Compilation message

Main.cpp: In function 'long long int dp(long long int, long long int)':
Main.cpp:37:14: warning: unused variable 'e' [-Wunused-variable]
   37 |     for(auto e: v){
      |              ^
Main.cpp: In function 'int main()':
Main.cpp:68:9: warning: unused variable 'res' [-Wunused-variable]
   68 |     int res= 0;
      |         ^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 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

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 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 16 ms 432 KB Output is correct
12 Correct 31 ms 432 KB Output is correct
13 Correct 32 ms 348 KB Output is correct
14 Correct 67 ms 348 KB Output is correct
15 Correct 66 ms 416 KB Output is correct
16 Correct 62 ms 664 KB Output is correct
17 Correct 62 ms 344 KB Output is correct
18 Correct 64 ms 348 KB Output is correct
19 Correct 64 ms 348 KB Output is correct
20 Correct 67 ms 408 KB Output is correct

Subtask #3
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 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 16 ms 432 KB Output is correct
12 Correct 31 ms 432 KB Output is correct
13 Correct 32 ms 348 KB Output is correct
14 Correct 67 ms 348 KB Output is correct
15 Correct 66 ms 416 KB Output is correct
16 Correct 62 ms 664 KB Output is correct
17 Correct 62 ms 344 KB Output is correct
18 Correct 64 ms 348 KB Output is correct
19 Correct 64 ms 348 KB Output is correct
20 Correct 67 ms 408 KB Output is correct
21 Execution timed out 5045 ms 348 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 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 16 ms 432 KB Output is correct
12 Correct 31 ms 432 KB Output is correct
13 Correct 32 ms 348 KB Output is correct
14 Correct 67 ms 348 KB Output is correct
15 Correct 66 ms 416 KB Output is correct
16 Correct 62 ms 664 KB Output is correct
17 Correct 62 ms 344 KB Output is correct
18 Correct 64 ms 348 KB Output is correct
19 Correct 64 ms 348 KB Output is correct
20 Correct 67 ms 408 KB Output is correct
21 Execution timed out 5045 ms 348 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 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 16 ms 432 KB Output is correct
12 Correct 31 ms 432 KB Output is correct
13 Correct 32 ms 348 KB Output is correct
14 Correct 67 ms 348 KB Output is correct
15 Correct 66 ms 416 KB Output is correct
16 Correct 62 ms 664 KB Output is correct
17 Correct 62 ms 344 KB Output is correct
18 Correct 64 ms 348 KB Output is correct
19 Correct 64 ms 348 KB Output is correct
20 Correct 67 ms 408 KB Output is correct
21 Execution timed out 5045 ms 348 KB Time limit exceeded
22 Halted 0 ms 0 KB -