oj.uz

Submission #532408

# Submission time Handle Problem Language Result Execution time Memory
532408 2022-03-02T21:01:07 Z Marceantasy Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 203 ms 2304 KB 
#include <bits/stdc++.h>
using namespace std; 

#define ll long long 
#define ar array

typedef pair<int, int> pi;

const int mxN = 505, M = 1e9+7;
int n, k; 
pair<int, int> a[mxN];
double dp[mxN][mxN];


int main(){
#ifdef _DEBUG
//	freopen("input.txt", "r", stdin);
//	freopen("output.txt", "w", stdout);
#endif
    std::ios_base::sync_with_stdio(false); std::cin.tie(0); std::cout.tie(0);

    cout << fixed << setprecision(12);
    cin >> n >> k; 
    for(int i = 0; i<n; ++i){
        cin >> a[i].first >> a[i].second;
        if(a[i].second == -1) a[i].second = 1e8;
    }
    sort(a, a+n, [&](const pi &a, const pi &b){
        return a.second < b.second;
    });
    double ret = 1e9;
    for(int i = 0; i<=k; ++i){
        for(int j = 0; j<=k-i; ++j){
            dp[0][j] = 1e9;
        }
        dp[0][0] = 0;
        for(int j = 1; j<=n; ++j){
            for(int b = 0; b<=k-i; ++b){
                int ord = j-b;
                dp[j][b] = dp[j-1][b] + (1<=ord && ord <= i ? 1.0 * a[j-1].second / ord : 0);
                if(b){
                    dp[j][b] = min(dp[j][b], dp[j-1][b-1] + 1.0*a[j-1].first / (i+1));
                }
            }
        }
        ret = min(ret, dp[n][k-i]);
    }
    cout << ret;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 316 KB Output is correct
5 Correct 3 ms 2252 KB Output is correct
6 Correct 10 ms 2252 KB Output is correct
7 Correct 37 ms 2252 KB Output is correct
8 Correct 86 ms 2252 KB Output is correct
9 Correct 164 ms 2284 KB Output is correct
10 Correct 78 ms 2300 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 316 KB Output is correct
5 Correct 3 ms 2252 KB Output is correct
6 Correct 10 ms 2252 KB Output is correct
7 Correct 37 ms 2252 KB Output is correct
8 Correct 86 ms 2252 KB Output is correct
9 Correct 164 ms 2284 KB Output is correct
10 Correct 78 ms 2300 KB Output is correct
11 Correct 0 ms 320 KB Output is correct
12 Correct 14 ms 2252 KB Output is correct
13 Correct 14 ms 2252 KB Output is correct
14 Correct 14 ms 2304 KB Output is correct
15 Correct 76 ms 2284 KB Output is correct
16 Correct 75 ms 2240 KB Output is correct
17 Correct 76 ms 2284 KB Output is correct
18 Correct 185 ms 2284 KB Output is correct
19 Correct 185 ms 2252 KB Output is correct
20 Correct 172 ms 2252 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 320 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 320 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 324 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 320 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 316 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 320 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 320 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 324 KB Output is correct
41 Correct 1 ms 716 KB Output is correct
42 Correct 1 ms 716 KB Output is correct
43 Correct 1 ms 716 KB Output is correct
44 Correct 1 ms 716 KB Output is correct
45 Correct 1 ms 716 KB Output is correct
46 Correct 1 ms 704 KB Output is correct
47 Correct 1 ms 704 KB Output is correct
48 Correct 1 ms 716 KB Output is correct
49 Correct 1 ms 716 KB Output is correct
50 Correct 2 ms 716 KB Output is correct
51 Correct 2 ms 716 KB Output is correct
52 Correct 2 ms 704 KB Output is correct
53 Correct 1 ms 716 KB Output is correct
54 Correct 2 ms 716 KB Output is correct
55 Correct 1 ms 716 KB Output is correct
56 Correct 3 ms 716 KB Output is correct
57 Correct 2 ms 716 KB Output is correct
58 Correct 2 ms 716 KB Output is correct
59 Correct 1 ms 708 KB Output is correct
60 Correct 1 ms 716 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 195 ms 2284 KB Output is correct
2 Correct 194 ms 2288 KB Output is correct
3 Correct 203 ms 2296 KB Output is correct
4 Correct 173 ms 2284 KB Output is correct
5 Correct 176 ms 2276 KB Output is correct
6 Correct 171 ms 2280 KB Output is correct
7 Correct 175 ms 2252 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 316 KB Output is correct
5 Correct 3 ms 2252 KB Output is correct
6 Correct 10 ms 2252 KB Output is correct
7 Correct 37 ms 2252 KB Output is correct
8 Correct 86 ms 2252 KB Output is correct
9 Correct 164 ms 2284 KB Output is correct
10 Correct 78 ms 2300 KB Output is correct
11 Correct 0 ms 320 KB Output is correct
12 Correct 14 ms 2252 KB Output is correct
13 Correct 14 ms 2252 KB Output is correct
14 Correct 14 ms 2304 KB Output is correct
15 Correct 76 ms 2284 KB Output is correct
16 Correct 75 ms 2240 KB Output is correct
17 Correct 76 ms 2284 KB Output is correct
18 Correct 185 ms 2284 KB Output is correct
19 Correct 185 ms 2252 KB Output is correct
20 Correct 172 ms 2252 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 320 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 320 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 320 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 316 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 1 ms 332 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 1 ms 320 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 1 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 1 ms 332 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 320 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 1 ms 324 KB Output is correct
61 Correct 1 ms 716 KB Output is correct
62 Correct 1 ms 716 KB Output is correct
63 Correct 1 ms 716 KB Output is correct
64 Correct 1 ms 716 KB Output is correct
65 Correct 1 ms 716 KB Output is correct
66 Correct 1 ms 704 KB Output is correct
67 Correct 1 ms 704 KB Output is correct
68 Correct 1 ms 716 KB Output is correct
69 Correct 1 ms 716 KB Output is correct
70 Correct 2 ms 716 KB Output is correct
71 Correct 2 ms 716 KB Output is correct
72 Correct 2 ms 704 KB Output is correct
73 Correct 1 ms 716 KB Output is correct
74 Correct 2 ms 716 KB Output is correct
75 Correct 1 ms 716 KB Output is correct
76 Correct 3 ms 716 KB Output is correct
77 Correct 2 ms 716 KB Output is correct
78 Correct 2 ms 716 KB Output is correct
79 Correct 1 ms 708 KB Output is correct
80 Correct 1 ms 716 KB Output is correct
81 Correct 195 ms 2284 KB Output is correct
82 Correct 194 ms 2288 KB Output is correct
83 Correct 203 ms 2296 KB Output is correct
84 Correct 173 ms 2284 KB Output is correct
85 Correct 176 ms 2276 KB Output is correct
86 Correct 171 ms 2280 KB Output is correct
87 Correct 175 ms 2252 KB Output is correct
88 Correct 5 ms 2244 KB Output is correct
89 Correct 3 ms 2248 KB Output is correct
90 Correct 13 ms 2252 KB Output is correct
91 Correct 13 ms 2252 KB Output is correct
92 Correct 38 ms 2284 KB Output is correct
93 Correct 38 ms 2252 KB Output is correct
94 Correct 94 ms 2252 KB Output is correct
95 Correct 93 ms 2252 KB Output is correct
96 Correct 144 ms 2252 KB Output is correct
97 Correct 128 ms 2252 KB Output is correct
98 Correct 74 ms 2252 KB Output is correct
99 Correct 79 ms 2300 KB Output is correct
100 Correct 73 ms 2296 KB Output is correct
101 Correct 75 ms 2252 KB Output is correct
102 Correct 75 ms 2252 KB Output is correct
103 Correct 74 ms 2284 KB Output is correct
104 Correct 74 ms 2280 KB Output is correct
105 Correct 84 ms 2284 KB Output is correct