oj.uz

Submission #973696

# Submission time Handle Problem Language Result Execution time Memory
973696 2024-05-02T09:42:22 Z berr Let's Win the Election (JOI22_ho_t3) C++17
61 / 100
 2500 ms 2448 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 505;
 
double 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]; 
    });

        auto calc=[&](int e){
           
            for(int i=0; i<=n+1; i++){
                for(int l=0; l<=n+1; l++){
                    dp[i][l]=1e9;
                }
            }
         
            dp[0][0]=0;
            for(int i=0; i<n; i++){
                for(int l=e; l>=0; l--){
                    for(int x=n; x>=0; x--){
                      //  cout<<(double)a[i][1]/(double)(l+1)<<"\n";
                        if(a[i][1]!=-1)
                            dp[l+1][x] =min<double>(dp[l+1][x], dp[l][x]+(double)a[i][1]/(double)(l+1));
                        dp[l][x+1]=min<double>(dp[l][x+1], dp[l][x]+((double)a[i][0]/(double)(e+1)));
                    }
                }
            }

            return dp[e][k-e];

        };
        double ans=1e9;
        int s=0;

        for(int i=9; i>=0; i--){
            int tmp = s+(1<<i);
            if(tmp<=k && calc(tmp)<calc(tmp-1)){
                s=tmp;
                ans=min(ans, calc(tmp));
            }
        }
        
        for(int i=max(0,s-5); i<=min(k, s+5); i++){
            ans=min(ans, calc(i));
        }

        cout<<setprecision(9)<<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 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 32 ms 2448 KB Output is correct
6 Correct 56 ms 2392 KB Output is correct
7 Correct 111 ms 2424 KB Output is correct
8 Correct 219 ms 2424 KB Output is correct
9 Correct 209 ms 2420 KB Output is correct
10 Correct 211 ms 2392 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 32 ms 2448 KB Output is correct
6 Correct 56 ms 2392 KB Output is correct
7 Correct 111 ms 2424 KB Output is correct
8 Correct 219 ms 2424 KB Output is correct
9 Correct 209 ms 2420 KB Output is correct
10 Correct 211 ms 2392 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1197 ms 2428 KB Output is correct
13 Correct 947 ms 2424 KB Output is correct
14 Correct 378 ms 2396 KB Output is correct
15 Execution timed out 2565 ms 2396 KB Time limit exceeded
16 Halted 0 ms 0 KB -

Subtask #3
11.0 / 11.0

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

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 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 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 0 ms 348 KB Output is correct
16 Correct 0 ms 600 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 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 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 600 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 344 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 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 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 0 ms 348 KB Output is correct
16 Correct 0 ms 600 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 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 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 600 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 2 ms 860 KB Output is correct
42 Correct 4 ms 860 KB Output is correct
43 Correct 4 ms 604 KB Output is correct
44 Correct 8 ms 856 KB Output is correct
45 Correct 16 ms 860 KB Output is correct
46 Correct 8 ms 856 KB Output is correct
47 Correct 12 ms 860 KB Output is correct
48 Correct 19 ms 860 KB Output is correct
49 Correct 26 ms 860 KB Output is correct
50 Correct 17 ms 864 KB Output is correct
51 Correct 23 ms 604 KB Output is correct
52 Correct 30 ms 860 KB Output is correct
53 Correct 8 ms 604 KB Output is correct
54 Correct 14 ms 860 KB Output is correct
55 Correct 22 ms 860 KB Output is correct
56 Correct 10 ms 604 KB Output is correct
57 Correct 22 ms 604 KB Output is correct
58 Correct 23 ms 860 KB Output is correct
59 Correct 26 ms 600 KB Output is correct
60 Correct 19 ms 860 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2528 ms 2392 KB Time limit exceeded
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 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 32 ms 2448 KB Output is correct
6 Correct 56 ms 2392 KB Output is correct
7 Correct 111 ms 2424 KB Output is correct
8 Correct 219 ms 2424 KB Output is correct
9 Correct 209 ms 2420 KB Output is correct
10 Correct 211 ms 2392 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1197 ms 2428 KB Output is correct
13 Correct 947 ms 2424 KB Output is correct
14 Correct 378 ms 2396 KB Output is correct
15 Execution timed out 2565 ms 2396 KB Time limit exceeded
16 Halted 0 ms 0 KB -