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Submission #831612

# Submission time Handle Problem Language Result Execution time Memory
831612 2023-08-20T11:19:18 Z jasmin Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 410 ms 2604 KB 
//JOI 2022 Final round
#include<bits/stdc++.h>
using namespace std;

const double INF=1e9+7;

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    cout.precision(100);

    int n, k;
    cin >> n >> k;

    vector<int> a(n);
    vector<int> b(n);
    for(int i=0; i<n; i++){
        cin >> a[i] >> b[i];

        if(b[i]==-1) b[i]=INF;
    }

    vector<int> sorted(n);
    iota(sorted.begin(), sorted.end(), 0);
    sort(sorted.begin(), sorted.end(), [&](int i, int j){
        return b[i]<b[j];
    });

    double ans=INF;
    for(int c=0; c<=k; c++){

        vector<vector<double> > dp(n+1, vector<double> (k+1, INF));
        dp[0][0]=0;

        for(int i=0; i<n; i++){
            for(int j=0; j<= min(i+1, k); j++){
                int x=i+1-j;
                int ind=sorted[i];

                if(0<x && x<=c){

                    dp[i+1][j] = dp[i][j] + (double)b[ind]/(double)x;

                }
                else if(c<x){

                    dp[i+1][j] = dp[i][j];
                }

                if(0<j){

                    dp[i+1][j] = min(dp[i+1][j], dp[i][j-1] + (double)a[ind]/(double)(c+1));
                }

            }
        }

        ans = min(ans, dp[n][k-c]);
    }

    cout << ans << "\n";
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 5 ms 536 KB Output is correct
6 Correct 26 ms 836 KB Output is correct
7 Correct 106 ms 1332 KB Output is correct
8 Correct 235 ms 2064 KB Output is correct
9 Correct 382 ms 2492 KB Output is correct
10 Correct 209 ms 1864 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 5 ms 536 KB Output is correct
6 Correct 26 ms 836 KB Output is correct
7 Correct 106 ms 1332 KB Output is correct
8 Correct 235 ms 2064 KB Output is correct
9 Correct 382 ms 2492 KB Output is correct
10 Correct 209 ms 1864 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 50 ms 916 KB Output is correct
13 Correct 40 ms 924 KB Output is correct
14 Correct 40 ms 1396 KB Output is correct
15 Correct 209 ms 1964 KB Output is correct
16 Correct 206 ms 1724 KB Output is correct
17 Correct 218 ms 1956 KB Output is correct
18 Correct 410 ms 2484 KB Output is correct
19 Correct 401 ms 2604 KB Output is correct
20 Correct 385 ms 2472 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 324 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 320 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 320 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 0 ms 324 KB Output is correct
37 Correct 0 ms 320 KB Output is correct
38 Correct 1 ms 324 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 324 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 320 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 320 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 324 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 0 ms 324 KB Output is correct
37 Correct 0 ms 320 KB Output is correct
38 Correct 1 ms 324 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 2 ms 388 KB Output is correct
50 Correct 2 ms 340 KB Output is correct
51 Correct 2 ms 340 KB Output is correct
52 Correct 2 ms 340 KB Output is correct
53 Correct 1 ms 324 KB Output is correct
54 Correct 2 ms 340 KB Output is correct
55 Correct 2 ms 324 KB Output is correct
56 Correct 2 ms 340 KB Output is correct
57 Correct 1 ms 340 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 1 ms 320 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 389 ms 2492 KB Output is correct
2 Correct 389 ms 2512 KB Output is correct
3 Correct 382 ms 2592 KB Output is correct
4 Correct 383 ms 2500 KB Output is correct
5 Correct 391 ms 2516 KB Output is correct
6 Correct 385 ms 2472 KB Output is correct
7 Correct 400 ms 2472 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 5 ms 536 KB Output is correct
6 Correct 26 ms 836 KB Output is correct
7 Correct 106 ms 1332 KB Output is correct
8 Correct 235 ms 2064 KB Output is correct
9 Correct 382 ms 2492 KB Output is correct
10 Correct 209 ms 1864 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 50 ms 916 KB Output is correct
13 Correct 40 ms 924 KB Output is correct
14 Correct 40 ms 1396 KB Output is correct
15 Correct 209 ms 1964 KB Output is correct
16 Correct 206 ms 1724 KB Output is correct
17 Correct 218 ms 1956 KB Output is correct
18 Correct 410 ms 2484 KB Output is correct
19 Correct 401 ms 2604 KB Output is correct
20 Correct 385 ms 2472 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 324 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 320 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 320 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 1 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 1 ms 324 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 0 ms 212 KB Output is correct
52 Correct 1 ms 212 KB Output is correct
53 Correct 1 ms 212 KB Output is correct
54 Correct 0 ms 212 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 0 ms 324 KB Output is correct
57 Correct 0 ms 320 KB Output is correct
58 Correct 1 ms 324 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 1 ms 212 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 1 ms 340 KB Output is correct
66 Correct 1 ms 340 KB Output is correct
67 Correct 1 ms 340 KB Output is correct
68 Correct 1 ms 340 KB Output is correct
69 Correct 2 ms 388 KB Output is correct
70 Correct 2 ms 340 KB Output is correct
71 Correct 2 ms 340 KB Output is correct
72 Correct 2 ms 340 KB Output is correct
73 Correct 1 ms 324 KB Output is correct
74 Correct 2 ms 340 KB Output is correct
75 Correct 2 ms 324 KB Output is correct
76 Correct 2 ms 340 KB Output is correct
77 Correct 1 ms 340 KB Output is correct
78 Correct 1 ms 340 KB Output is correct
79 Correct 1 ms 340 KB Output is correct
80 Correct 1 ms 320 KB Output is correct
81 Correct 389 ms 2492 KB Output is correct
82 Correct 389 ms 2512 KB Output is correct
83 Correct 382 ms 2592 KB Output is correct
84 Correct 383 ms 2500 KB Output is correct
85 Correct 391 ms 2516 KB Output is correct
86 Correct 385 ms 2472 KB Output is correct
87 Correct 400 ms 2472 KB Output is correct
88 Correct 5 ms 540 KB Output is correct
89 Correct 5 ms 540 KB Output is correct
90 Correct 26 ms 836 KB Output is correct
91 Correct 27 ms 840 KB Output is correct
92 Correct 106 ms 1324 KB Output is correct
93 Correct 106 ms 1316 KB Output is correct
94 Correct 255 ms 1924 KB Output is correct
95 Correct 228 ms 1816 KB Output is correct
96 Correct 321 ms 2112 KB Output is correct
97 Correct 319 ms 2224 KB Output is correct
98 Correct 212 ms 1804 KB Output is correct
99 Correct 208 ms 1788 KB Output is correct
100 Correct 202 ms 2004 KB Output is correct
101 Correct 206 ms 2064 KB Output is correct
102 Correct 202 ms 2000 KB Output is correct
103 Correct 213 ms 1996 KB Output is correct
104 Correct 206 ms 1936 KB Output is correct
105 Correct 234 ms 1716 KB Output is correct