oj.uz

Submission #973991

# Submission time Handle Problem Language Result Execution time Memory
973991 2024-05-02T14:25:51 Z berr Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 191 ms 4448 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 505;
 
double dp[N][N], mi[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]; 
    });
    

    double ans=1e9;

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

    for(int i=n-1; i>=0; i--){
        mi[i][0]=0;

        for(int l=n; l>0; l--){

            mi[i][l]=min(mi[i+1][l], mi[i+1][l-1]+a[i][0]);
        }
    }


    auto calc=[&](int e){
       
        for(int i=0; i<=n+1; i++){
            for(int l=0; l<=n+1; l++){
                dp[i][l]=1e9;
            }
        }
     
        for(int i=0; i<=k; i++){
            if(a[i][1]==-1) break;
                dp[i][0]=(i==0?0:dp[i-1][0])+(double)a[i][0]/(double)(e+1);
            if(i>0)
                for(int l=e; l>=1; l--)
                dp[i][l] =min<double>(dp[i-1][l-1]+(double)a[i][1]/(double)(l), dp[i-1][l]+((double)a[i][0])/(double)(e+1)); 
            
            else dp[i][1]=a[i][1];
            
        }   

        for(int i=0; i<k; i++){
            if(mi[i+1][k-i-1]!=1e9&&dp[i][e]!=(1e9))
            ans=min(ans, dp[i][e]+(double)mi[i+1][k-i-1]/(double)(e+1));
        }

    };


    for(int i=1; i<=k; i++){
        calc(i);
    }

    ans=min(ans, mi[0][k]);

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

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 10 ms 4444 KB Output is correct
6 Correct 21 ms 4444 KB Output is correct
7 Correct 43 ms 4444 KB Output is correct
8 Correct 62 ms 4188 KB Output is correct
9 Correct 82 ms 4188 KB Output is correct
10 Correct 58 ms 4184 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 10 ms 4444 KB Output is correct
6 Correct 21 ms 4444 KB Output is correct
7 Correct 43 ms 4444 KB Output is correct
8 Correct 62 ms 4188 KB Output is correct
9 Correct 82 ms 4188 KB Output is correct
10 Correct 58 ms 4184 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 28 ms 4184 KB Output is correct
13 Correct 29 ms 4440 KB Output is correct
14 Correct 27 ms 4444 KB Output is correct
15 Correct 96 ms 4444 KB Output is correct
16 Correct 86 ms 4444 KB Output is correct
17 Correct 68 ms 4444 KB Output is correct
18 Correct 180 ms 4444 KB Output is correct
19 Correct 141 ms 4440 KB Output is correct
20 Correct 102 ms 4184 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2712 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2712 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2648 KB Output is correct
23 Correct 1 ms 2392 KB Output is correct
24 Correct 1 ms 2392 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 0 ms 2516 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2512 KB Output is correct
30 Correct 1 ms 2648 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2648 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2392 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2392 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2712 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2392 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2648 KB Output is correct
23 Correct 1 ms 2392 KB Output is correct
24 Correct 1 ms 2392 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 0 ms 2516 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2512 KB Output is correct
30 Correct 1 ms 2648 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2648 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2392 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2392 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 1 ms 2652 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 1 ms 2652 KB Output is correct
44 Correct 1 ms 2716 KB Output is correct
45 Correct 1 ms 2652 KB Output is correct
46 Correct 1 ms 2652 KB Output is correct
47 Correct 2 ms 2652 KB Output is correct
48 Correct 2 ms 2652 KB Output is correct
49 Correct 2 ms 2652 KB Output is correct
50 Correct 2 ms 2712 KB Output is correct
51 Correct 3 ms 2648 KB Output is correct
52 Correct 2 ms 2648 KB Output is correct
53 Correct 2 ms 2652 KB Output is correct
54 Correct 1 ms 2652 KB Output is correct
55 Correct 2 ms 2652 KB Output is correct
56 Correct 1 ms 2764 KB Output is correct
57 Correct 2 ms 2652 KB Output is correct
58 Correct 1 ms 2652 KB Output is correct
59 Correct 1 ms 2652 KB Output is correct
60 Correct 2 ms 2900 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 188 ms 4436 KB Output is correct
2 Correct 191 ms 4416 KB Output is correct
3 Correct 179 ms 4424 KB Output is correct
4 Correct 181 ms 4432 KB Output is correct
5 Correct 178 ms 4416 KB Output is correct
6 Correct 182 ms 4184 KB Output is correct
7 Correct 184 ms 4436 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 10 ms 4444 KB Output is correct
6 Correct 21 ms 4444 KB Output is correct
7 Correct 43 ms 4444 KB Output is correct
8 Correct 62 ms 4188 KB Output is correct
9 Correct 82 ms 4188 KB Output is correct
10 Correct 58 ms 4184 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 28 ms 4184 KB Output is correct
13 Correct 29 ms 4440 KB Output is correct
14 Correct 27 ms 4444 KB Output is correct
15 Correct 96 ms 4444 KB Output is correct
16 Correct 86 ms 4444 KB Output is correct
17 Correct 68 ms 4444 KB Output is correct
18 Correct 180 ms 4444 KB Output is correct
19 Correct 141 ms 4440 KB Output is correct
20 Correct 102 ms 4184 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 1 ms 2392 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 1 ms 2712 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2392 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2648 KB Output is correct
43 Correct 1 ms 2392 KB Output is correct
44 Correct 1 ms 2392 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 0 ms 2516 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2512 KB Output is correct
50 Correct 1 ms 2648 KB Output is correct
51 Correct 1 ms 2396 KB Output is correct
52 Correct 1 ms 2396 KB Output is correct
53 Correct 1 ms 2396 KB Output is correct
54 Correct 1 ms 2648 KB Output is correct
55 Correct 1 ms 2396 KB Output is correct
56 Correct 1 ms 2392 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 1 ms 2392 KB Output is correct
59 Correct 1 ms 2396 KB Output is correct
60 Correct 1 ms 2396 KB Output is correct
61 Correct 1 ms 2652 KB Output is correct
62 Correct 1 ms 2652 KB Output is correct
63 Correct 1 ms 2652 KB Output is correct
64 Correct 1 ms 2716 KB Output is correct
65 Correct 1 ms 2652 KB Output is correct
66 Correct 1 ms 2652 KB Output is correct
67 Correct 2 ms 2652 KB Output is correct
68 Correct 2 ms 2652 KB Output is correct
69 Correct 2 ms 2652 KB Output is correct
70 Correct 2 ms 2712 KB Output is correct
71 Correct 3 ms 2648 KB Output is correct
72 Correct 2 ms 2648 KB Output is correct
73 Correct 2 ms 2652 KB Output is correct
74 Correct 1 ms 2652 KB Output is correct
75 Correct 2 ms 2652 KB Output is correct
76 Correct 1 ms 2764 KB Output is correct
77 Correct 2 ms 2652 KB Output is correct
78 Correct 1 ms 2652 KB Output is correct
79 Correct 1 ms 2652 KB Output is correct
80 Correct 2 ms 2900 KB Output is correct
81 Correct 188 ms 4436 KB Output is correct
82 Correct 191 ms 4416 KB Output is correct
83 Correct 179 ms 4424 KB Output is correct
84 Correct 181 ms 4432 KB Output is correct
85 Correct 178 ms 4416 KB Output is correct
86 Correct 182 ms 4184 KB Output is correct
87 Correct 184 ms 4436 KB Output is correct
88 Correct 10 ms 4444 KB Output is correct
89 Correct 10 ms 4444 KB Output is correct
90 Correct 23 ms 4444 KB Output is correct
91 Correct 24 ms 4448 KB Output is correct
92 Correct 54 ms 4440 KB Output is correct
93 Correct 53 ms 4444 KB Output is correct
94 Correct 109 ms 4444 KB Output is correct
95 Correct 102 ms 4188 KB Output is correct
96 Correct 145 ms 4188 KB Output is correct
97 Correct 146 ms 4440 KB Output is correct
98 Correct 107 ms 4444 KB Output is correct
99 Correct 90 ms 4444 KB Output is correct
100 Correct 94 ms 4440 KB Output is correct
101 Correct 92 ms 4420 KB Output is correct
102 Correct 94 ms 4444 KB Output is correct
103 Correct 92 ms 4440 KB Output is correct
104 Correct 95 ms 4420 KB Output is correct
105 Correct 99 ms 4184 KB Output is correct