oj.uz

Submission #973695

# Submission time Handle Problem Language Result Execution time Memory
973695 2024-05-02T09:41:34 Z berr Let's Win the Election (JOI22_ho_t3) C++17
61 / 100
 2500 ms 2644 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-10); i<=min(k, s+10); 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 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 55 ms 2424 KB Output is correct
6 Correct 64 ms 2392 KB Output is correct
7 Correct 120 ms 2424 KB Output is correct
8 Correct 238 ms 2424 KB Output is correct
9 Correct 221 ms 2644 KB Output is correct
10 Correct 218 ms 2424 KB Output is correct

Subtask #2
0 / 5.0

# 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 55 ms 2424 KB Output is correct
6 Correct 64 ms 2392 KB Output is correct
7 Correct 120 ms 2424 KB Output is correct
8 Correct 238 ms 2424 KB Output is correct
9 Correct 221 ms 2644 KB Output is correct
10 Correct 218 ms 2424 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1484 ms 2424 KB Output is correct
13 Correct 1302 ms 2428 KB Output is correct
14 Correct 493 ms 2644 KB Output is correct
15 Execution timed out 2561 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 1 ms 348 KB Output is correct
9 Correct 1 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 344 KB Output is correct
14 Correct 1 ms 348 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 1 ms 348 KB Output is correct
9 Correct 1 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 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 356 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 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 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 544 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 1 ms 348 KB Output is correct
9 Correct 1 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 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 356 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 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 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 544 KB Output is correct
41 Correct 5 ms 860 KB Output is correct
42 Correct 6 ms 604 KB Output is correct
43 Correct 6 ms 600 KB Output is correct
44 Correct 11 ms 856 KB Output is correct
45 Correct 39 ms 860 KB Output is correct
46 Correct 11 ms 860 KB Output is correct
47 Correct 16 ms 860 KB Output is correct
48 Correct 25 ms 860 KB Output is correct
49 Correct 36 ms 836 KB Output is correct
50 Correct 22 ms 860 KB Output is correct
51 Correct 31 ms 860 KB Output is correct
52 Correct 40 ms 860 KB Output is correct
53 Correct 10 ms 860 KB Output is correct
54 Correct 19 ms 860 KB Output is correct
55 Correct 30 ms 600 KB Output is correct
56 Correct 22 ms 604 KB Output is correct
57 Correct 26 ms 860 KB Output is correct
58 Correct 31 ms 856 KB Output is correct
59 Correct 30 ms 604 KB Output is correct
60 Correct 26 ms 860 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2592 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 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 55 ms 2424 KB Output is correct
6 Correct 64 ms 2392 KB Output is correct
7 Correct 120 ms 2424 KB Output is correct
8 Correct 238 ms 2424 KB Output is correct
9 Correct 221 ms 2644 KB Output is correct
10 Correct 218 ms 2424 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1484 ms 2424 KB Output is correct
13 Correct 1302 ms 2428 KB Output is correct
14 Correct 493 ms 2644 KB Output is correct
15 Execution timed out 2561 ms 2396 KB Time limit exceeded
16 Halted 0 ms 0 KB -