oj.uz

Submission #973589

# Submission time Handle Problem Language Result Execution time Memory
973589 2024-05-02T07:47:09 Z berr Let's Win the Election (JOI22_ho_t3) C++17
10 / 100
 809 ms 2648 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 505;

array<float, 2> dp[N][N];
 
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    
    int n, k; cin >> n >> k;
    vector<array<int, 2>> a(n);

    for(auto &[i, l]: a) cin >> i >> l;

    sort(a.begin(), a.end(), [&](auto x, auto y){
        if(x[1]==y[1]) return x[0] < y[0];
        else if(y[1]==-1) return true;
        else if(x[1]==-1) return false;
         return x[1]<y[1]; 
    });
    

    for(int i=0; i<=n+1; i++){
        for(int l=0; l<=n+1; l++){
            dp[i][l]={1e9, 1e9};
        }
    }

    dp[0][0]={0, 0};

    for(int i=0; i<n; i++){

        for(int l=n; l>=0; l--){
            for(int x=n; x>=0; x--){
              //  cout<<(float)a[i][1]/(float)(l+1)<<"\n";
                if(a[i][1]!=-1)
                dp[l+1][x]=min(dp[l+1][x], {dp[l][x][0]+(float)a[i][1]/(float)(l+1), dp[l][x][1]});
          
                dp[l][x+1]=min(dp[l][x+1], {dp[l][x][0], dp[l][x][1]+a[i][0]});

            }
        }

    }
    float ans=1e9;
    for(int i=0; i<=k; i++){

        ans=min(ans, dp[i][k-i][0]+(float)dp[i][k-i][1]/(float)(i+1));
    }

    cout<<setprecision(9)<<fixed<<ans<<"\n";
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 481 ms 2648 KB Output is correct
6 Correct 465 ms 2396 KB Output is correct
7 Correct 485 ms 2420 KB Output is correct
8 Correct 469 ms 2648 KB Output is correct
9 Correct 468 ms 2428 KB Output is correct
10 Correct 469 ms 2644 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 481 ms 2648 KB Output is correct
6 Correct 465 ms 2396 KB Output is correct
7 Correct 485 ms 2420 KB Output is correct
8 Correct 469 ms 2648 KB Output is correct
9 Correct 468 ms 2428 KB Output is correct
10 Correct 469 ms 2644 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 809 ms 2424 KB Output is correct
13 Correct 694 ms 2640 KB Output is correct
14 Correct 527 ms 2396 KB Output is correct
15 Correct 772 ms 2424 KB Output is correct
16 Correct 670 ms 2640 KB Output is correct
17 Correct 539 ms 2420 KB Output is correct
18 Correct 770 ms 2424 KB Output is correct
19 Correct 666 ms 2392 KB Output is correct
20 Correct 523 ms 2396 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 0 ms 348 KB Output is correct
9 Incorrect 1 ms 344 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 0 ms 348 KB Output is correct
9 Incorrect 1 ms 344 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 0 ms 348 KB Output is correct
9 Incorrect 1 ms 344 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 778 ms 2432 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 481 ms 2648 KB Output is correct
6 Correct 465 ms 2396 KB Output is correct
7 Correct 485 ms 2420 KB Output is correct
8 Correct 469 ms 2648 KB Output is correct
9 Correct 468 ms 2428 KB Output is correct
10 Correct 469 ms 2644 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 809 ms 2424 KB Output is correct
13 Correct 694 ms 2640 KB Output is correct
14 Correct 527 ms 2396 KB Output is correct
15 Correct 772 ms 2424 KB Output is correct
16 Correct 670 ms 2640 KB Output is correct
17 Correct 539 ms 2420 KB Output is correct
18 Correct 770 ms 2424 KB Output is correct
19 Correct 666 ms 2392 KB Output is correct
20 Correct 523 ms 2396 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Incorrect 1 ms 344 KB Output isn't correct
30 Halted 0 ms 0 KB -