oj.uz

Submission #938000

# Submission time Handle Problem Language Result Execution time Memory
938000 2024-03-04T17:31:20 Z vjudge1 Let's Win the Election (JOI22_ho_t3) C++17
66 / 100
 2500 ms 1024 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long double ld;

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

	int N, K; cin >> N >> K;
	vector<pair<ld, ld>> v(N);
	bool special = true;
	for(int i = 0; i < N; i++){
		cin >> v[i].second >> v[i].first;
		if(v[i].first == -1) v[i].first = 1e9;
		else if(v[i].first != v[i].second) special = false;
	}
	sort(v.begin(), v.end());
	ld ans = 7e18;
	if(special){
		for(int collaborators = 0; collaborators < K; collaborators++){
			ld cost = 0;
			ld hv = 1;
			for(int i = 0; i < collaborators; i++){
				cost += v[i].first / hv;
				hv++;
			}
			vector<ld> a;
			for(int i = collaborators; i < N; i++){
				a.push_back(v[i].second);
			}
			sort(a.begin(), a.end());
			for(int i = 0; i < K - collaborators; i++){
				cost += a[i] / hv;
			}
			ans = min(ans, cost);
		}
	}else if(K == N){
		for(ld collaborators = 0; collaborators < K; collaborators++){
			vector<ld> dp(collaborators + 1, 1e18);
			dp[0] = 0;
			for(int i = 0; i < N; i++){
				for(ld j = collaborators; j >= 0; j--){
					if(j != collaborators) dp[j+1] = min(dp[j+1], dp[j] + v[i].first / (j+1.0));
					dp[j] += v[i].second / (collaborators+1.0);
				}
			}
			ans = min(ans, dp[collaborators]);
		}
	}else{
		assert(K != N);
		for(ld collaborators = 0; collaborators < K; collaborators++){
			vector<vector<ld>> dp(K+1, vector<ld>(collaborators + 1, 1e18));
			dp[0][0] = 0;
			for(int i = 0; i < N; i++){
				for(int elem = K - 1; elem >= 0; elem--){					
					for(ld j = collaborators; j >= 0; j--){
						if(j != collaborators) dp[elem+1][j+1] = min(dp[elem+1][j+1], dp[elem][j] + v[i].first / (j+1.0));
						dp[elem+1][j] = min(dp[elem+1][j], dp[elem][j] + v[i].second / (collaborators+1.0));
					}
				}
			}
			ans = min(ans, dp[K][collaborators]);
		}
	}
	cout << fixed << setprecision(8) << 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 412 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 5 ms 348 KB Output is correct
8 Correct 4 ms 348 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 412 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 5 ms 348 KB Output is correct
8 Correct 4 ms 348 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 2 ms 500 KB Output is correct
13 Correct 4 ms 348 KB Output is correct
14 Correct 4 ms 348 KB Output is correct
15 Correct 4 ms 500 KB Output is correct
16 Correct 6 ms 344 KB Output is correct
17 Correct 6 ms 348 KB Output is correct
18 Correct 5 ms 476 KB Output is correct
19 Correct 7 ms 348 KB Output is correct
20 Correct 9 ms 348 KB Output is correct

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 0 ms 348 KB Output is correct
5 Correct 0 ms 344 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 1 ms 348 KB Output is correct
14 Correct 0 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 0 ms 348 KB Output is correct
5 Correct 0 ms 344 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 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 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 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 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 344 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 1 ms 344 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 1 ms 348 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 0 ms 348 KB Output is correct
5 Correct 0 ms 344 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 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 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 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 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 344 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 1 ms 344 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 5 ms 344 KB Output is correct
42 Correct 4 ms 348 KB Output is correct
43 Correct 23 ms 600 KB Output is correct
44 Correct 23 ms 344 KB Output is correct
45 Correct 109 ms 576 KB Output is correct
46 Correct 105 ms 632 KB Output is correct
47 Correct 235 ms 748 KB Output is correct
48 Correct 230 ms 596 KB Output is correct
49 Correct 434 ms 876 KB Output is correct
50 Correct 442 ms 772 KB Output is correct
51 Correct 73 ms 484 KB Output is correct
52 Correct 71 ms 348 KB Output is correct
53 Correct 237 ms 592 KB Output is correct
54 Correct 236 ms 732 KB Output is correct
55 Correct 233 ms 512 KB Output is correct
56 Correct 247 ms 652 KB Output is correct
57 Correct 253 ms 892 KB Output is correct
58 Correct 231 ms 736 KB Output is correct
59 Correct 231 ms 596 KB Output is correct
60 Correct 240 ms 1024 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2525 ms 344 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 412 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 5 ms 348 KB Output is correct
8 Correct 4 ms 348 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 4 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 2 ms 500 KB Output is correct
13 Correct 4 ms 348 KB Output is correct
14 Correct 4 ms 348 KB Output is correct
15 Correct 4 ms 500 KB Output is correct
16 Correct 6 ms 344 KB Output is correct
17 Correct 6 ms 348 KB Output is correct
18 Correct 5 ms 476 KB Output is correct
19 Correct 7 ms 348 KB Output is correct
20 Correct 9 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 344 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 0 ms 348 KB Output is correct
33 Correct 1 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 0 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 344 KB Output is correct
47 Correct 1 ms 344 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 344 KB Output is correct
53 Correct 1 ms 344 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 1 ms 344 KB Output is correct
56 Correct 1 ms 344 KB Output is correct
57 Correct 1 ms 344 KB Output is correct
58 Correct 1 ms 344 KB Output is correct
59 Correct 1 ms 344 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 5 ms 344 KB Output is correct
62 Correct 4 ms 348 KB Output is correct
63 Correct 23 ms 600 KB Output is correct
64 Correct 23 ms 344 KB Output is correct
65 Correct 109 ms 576 KB Output is correct
66 Correct 105 ms 632 KB Output is correct
67 Correct 235 ms 748 KB Output is correct
68 Correct 230 ms 596 KB Output is correct
69 Correct 434 ms 876 KB Output is correct
70 Correct 442 ms 772 KB Output is correct
71 Correct 73 ms 484 KB Output is correct
72 Correct 71 ms 348 KB Output is correct
73 Correct 237 ms 592 KB Output is correct
74 Correct 236 ms 732 KB Output is correct
75 Correct 233 ms 512 KB Output is correct
76 Correct 247 ms 652 KB Output is correct
77 Correct 253 ms 892 KB Output is correct
78 Correct 231 ms 736 KB Output is correct
79 Correct 231 ms 596 KB Output is correct
80 Correct 240 ms 1024 KB Output is correct
81 Execution timed out 2525 ms 344 KB Time limit exceeded
82 Halted 0 ms 0 KB -