oj.uz

Submission #526439

# Submission time Handle Problem Language Result Execution time Memory
526439 2022-02-14T18:42:19 Z sidon Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 430 ms 2364 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define dd double
#define minim(X, Y) (X = min(X, Y))

const int Z = 502, INF = 1e18;

int N, K, A[Z], B[Z];
dd ans = INF;
array<int, 2> s[Z];

dd dp[2][Z];
int suf[Z][Z];

int32_t main() {
	ios::sync_with_stdio(0), cin.tie(0);
	cin >> N >> K;

	for(int i = 0; i < N; ++i) {
		cin >> A[i] >> B[i];
		if(B[i] < 0) B[i] = INF;
		s[i] = {B[i], A[i]};
	}

	sort(s, s + N);

	for(int i = 0; i < N; ++i) {
		A[i] = s[i][1];
		B[i] = s[i][0];
	}

	for(int i = 0; i < N; ++i) {
		vector<int> v;
		for(int j = i; j < N; ++j) v.push_back(A[j]);
		sort(begin(v), end(v));

		for(int j = 0, sum = 0; j < (int)size(v); ++j)
			suf[i][j+1] = (sum += v[j]);
	}

	for(int c = 0; c <= N; ++c) {
		fill(dp[1], dp[1] + N + 1, INF);
		dp[1][0] = 0;

		for(int i = 0; i < N; ++i) {
			auto &curr = dp[i & 1];
			auto &prev = dp[!(i & 1)];

			for(int k = 0; k <= N; ++k)
				curr[k] = prev[k] + dd(A[i]) / dd(c + 1);

			for(int k = 0; k < N; ++k)
				minim(curr[k+1], prev[k] + dd(B[i]) / dd(k + 1));

			for(int k = 0; k <= N; ++k) {
				int other = (i + 1) - k;
				if(other > K - c) curr[k] = INF;
			}

			int other = K - (i + 1);

			if(0 <= other && other <= (N - i - 1))
				minim(ans, curr[c] + dd(suf[i+1][other]) / dd(c + 1));
		}
	}

	ans = min(ans, dd(suf[0][K]));

	cout << setprecision(10) << fixed << ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 386 ms 2204 KB Output is correct
6 Correct 390 ms 2252 KB Output is correct
7 Correct 390 ms 2284 KB Output is correct
8 Correct 408 ms 2292 KB Output is correct
9 Correct 405 ms 2288 KB Output is correct
10 Correct 396 ms 2292 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 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 386 ms 2204 KB Output is correct
6 Correct 390 ms 2252 KB Output is correct
7 Correct 390 ms 2284 KB Output is correct
8 Correct 408 ms 2292 KB Output is correct
9 Correct 405 ms 2288 KB Output is correct
10 Correct 396 ms 2292 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 396 ms 2252 KB Output is correct
13 Correct 388 ms 2288 KB Output is correct
14 Correct 387 ms 2288 KB Output is correct
15 Correct 399 ms 2284 KB Output is correct
16 Correct 399 ms 2252 KB Output is correct
17 Correct 405 ms 2284 KB Output is correct
18 Correct 403 ms 2252 KB Output is correct
19 Correct 406 ms 2292 KB Output is correct
20 Correct 401 ms 2284 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 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 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 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 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 332 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 0 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 0 ms 332 KB Output is correct
40 Correct 1 ms 332 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 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 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 332 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 0 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 0 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 4 ms 716 KB Output is correct
42 Correct 4 ms 716 KB Output is correct
43 Correct 4 ms 716 KB Output is correct
44 Correct 4 ms 716 KB Output is correct
45 Correct 4 ms 716 KB Output is correct
46 Correct 4 ms 716 KB Output is correct
47 Correct 4 ms 724 KB Output is correct
48 Correct 5 ms 716 KB Output is correct
49 Correct 5 ms 724 KB Output is correct
50 Correct 4 ms 716 KB Output is correct
51 Correct 4 ms 716 KB Output is correct
52 Correct 5 ms 716 KB Output is correct
53 Correct 4 ms 716 KB Output is correct
54 Correct 6 ms 812 KB Output is correct
55 Correct 4 ms 716 KB Output is correct
56 Correct 5 ms 716 KB Output is correct
57 Correct 4 ms 716 KB Output is correct
58 Correct 4 ms 728 KB Output is correct
59 Correct 4 ms 728 KB Output is correct
60 Correct 5 ms 716 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 406 ms 2300 KB Output is correct
2 Correct 411 ms 2252 KB Output is correct
3 Correct 395 ms 2252 KB Output is correct
4 Correct 410 ms 2300 KB Output is correct
5 Correct 400 ms 2284 KB Output is correct
6 Correct 399 ms 2288 KB Output is correct
7 Correct 404 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 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 386 ms 2204 KB Output is correct
6 Correct 390 ms 2252 KB Output is correct
7 Correct 390 ms 2284 KB Output is correct
8 Correct 408 ms 2292 KB Output is correct
9 Correct 405 ms 2288 KB Output is correct
10 Correct 396 ms 2292 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 396 ms 2252 KB Output is correct
13 Correct 388 ms 2288 KB Output is correct
14 Correct 387 ms 2288 KB Output is correct
15 Correct 399 ms 2284 KB Output is correct
16 Correct 399 ms 2252 KB Output is correct
17 Correct 405 ms 2284 KB Output is correct
18 Correct 403 ms 2252 KB Output is correct
19 Correct 406 ms 2292 KB Output is correct
20 Correct 401 ms 2284 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 0 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 0 ms 332 KB Output is correct
36 Correct 0 ms 332 KB Output is correct
37 Correct 0 ms 332 KB Output is correct
38 Correct 0 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 0 ms 332 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 0 ms 332 KB Output is correct
44 Correct 1 ms 336 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 0 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 332 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 0 ms 332 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 0 ms 332 KB Output is correct
60 Correct 1 ms 332 KB Output is correct
61 Correct 4 ms 716 KB Output is correct
62 Correct 4 ms 716 KB Output is correct
63 Correct 4 ms 716 KB Output is correct
64 Correct 4 ms 716 KB Output is correct
65 Correct 4 ms 716 KB Output is correct
66 Correct 4 ms 716 KB Output is correct
67 Correct 4 ms 724 KB Output is correct
68 Correct 5 ms 716 KB Output is correct
69 Correct 5 ms 724 KB Output is correct
70 Correct 4 ms 716 KB Output is correct
71 Correct 4 ms 716 KB Output is correct
72 Correct 5 ms 716 KB Output is correct
73 Correct 4 ms 716 KB Output is correct
74 Correct 6 ms 812 KB Output is correct
75 Correct 4 ms 716 KB Output is correct
76 Correct 5 ms 716 KB Output is correct
77 Correct 4 ms 716 KB Output is correct
78 Correct 4 ms 728 KB Output is correct
79 Correct 4 ms 728 KB Output is correct
80 Correct 5 ms 716 KB Output is correct
81 Correct 406 ms 2300 KB Output is correct
82 Correct 411 ms 2252 KB Output is correct
83 Correct 395 ms 2252 KB Output is correct
84 Correct 410 ms 2300 KB Output is correct
85 Correct 400 ms 2284 KB Output is correct
86 Correct 399 ms 2288 KB Output is correct
87 Correct 404 ms 2252 KB Output is correct
88 Correct 385 ms 2284 KB Output is correct
89 Correct 376 ms 2296 KB Output is correct
90 Correct 390 ms 2288 KB Output is correct
91 Correct 398 ms 2292 KB Output is correct
92 Correct 393 ms 2364 KB Output is correct
93 Correct 392 ms 2252 KB Output is correct
94 Correct 394 ms 2252 KB Output is correct
95 Correct 401 ms 2252 KB Output is correct
96 Correct 404 ms 2284 KB Output is correct
97 Correct 395 ms 2284 KB Output is correct
98 Correct 396 ms 2288 KB Output is correct
99 Correct 430 ms 2252 KB Output is correct
100 Correct 402 ms 2288 KB Output is correct
101 Correct 396 ms 2252 KB Output is correct
102 Correct 393 ms 2252 KB Output is correct
103 Correct 399 ms 2252 KB Output is correct
104 Correct 394 ms 2284 KB Output is correct
105 Correct 394 ms 2284 KB Output is correct