oj.uz

Submission #888075

# Submission time Handle Problem Language Result Execution time Memory
888075 2023-12-15T22:50:16 Z Hakiers Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 1014 ms 4696 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long double ld;
constexpr int MAXN = 5e2 + 8;
constexpr ld oo = 2e10;
ld dp[MAXN][MAXN];
pair<ld, ld> T[MAXN];
int n, k;

ld check(ld m){
	
	for(int i = 0; i <= n; i++)
		for(int j = 0; j <= k; j++)
			dp[i][j] = oo;

	dp[0][0] = 0;

	for(int i = 1; i <= n; i++){
		for(int j = 0; j <= min(k-(int)m, i); j++){
			//dokladamy A
			//if(j < i) dp[i][j] = min(dp[i][j], (j?(dp[i-1][j-1] + (T[i].second/(m+1)): oo));
			//dokladamy B
			//dp[i][j] = (dp[i-1][j] + (T[i].first/min((ld)(i-j), m+1)));
			
			//min((j?(dp[i-1][j-1] + T[i].second/(m+1)): oo), ((i-j)?(dp[i-1][j] + T[i].first/min((ld)(i-j), m+1)): oo));
			//dokladamy A
			dp[i][j+1] = min(dp[i][j+1], dp[i-1][j] + (T[i].second/(m+1)));
			//dokladamy B
			if(i-j)
			dp[i][j] = min(dp[i][j], dp[i-1][j] + ((i-j <= m)? (T[i].first/min((ld)(i-j), m+1)):0));
		}
	}
	
	return dp[n][k-(int)m];
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> k;
	
	for(int i = 1; i <= n; i++){
		ld a, b;
		cin >> a >> b;
		if(b == -1) b = oo;
		T[i] = {b, a};
	}
	sort(T+1, T+1+n);
	
	ld best = oo;
	
	for(int i = 0; i <= (k-1); i++)
		best = min(best, check(i));
		
	cout << fixed << setprecision(9) << best << "\n";
}

Subtask #1
5.0 / 5.0

# 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 13 ms 3712 KB Output is correct
6 Correct 75 ms 3932 KB Output is correct
7 Correct 280 ms 4688 KB Output is correct
8 Correct 600 ms 4444 KB Output is correct
9 Correct 1008 ms 4692 KB Output is correct
10 Correct 525 ms 4444 KB Output is correct

Subtask #2
5.0 / 5.0

# 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 13 ms 3712 KB Output is correct
6 Correct 75 ms 3932 KB Output is correct
7 Correct 280 ms 4688 KB Output is correct
8 Correct 600 ms 4444 KB Output is correct
9 Correct 1008 ms 4692 KB Output is correct
10 Correct 525 ms 4444 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 106 ms 4064 KB Output is correct
13 Correct 105 ms 4064 KB Output is correct
14 Correct 105 ms 3932 KB Output is correct
15 Correct 524 ms 4696 KB Output is correct
16 Correct 534 ms 4444 KB Output is correct
17 Correct 524 ms 4444 KB Output is correct
18 Correct 1006 ms 4692 KB Output is correct
19 Correct 1006 ms 4688 KB Output is correct
20 Correct 1006 ms 4452 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 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 1 ms 600 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 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 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 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 1 ms 600 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 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 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 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 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 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 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 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 1 ms 600 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 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 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 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 0 ms 348 KB Output is correct
38 Correct 0 ms 348 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 2396 KB Output is correct
42 Correct 1 ms 2392 KB Output is correct
43 Correct 2 ms 2396 KB Output is correct
44 Correct 2 ms 2396 KB Output is correct
45 Correct 3 ms 2396 KB Output is correct
46 Correct 3 ms 2616 KB Output is correct
47 Correct 5 ms 2396 KB Output is correct
48 Correct 5 ms 2616 KB Output is correct
49 Correct 6 ms 2396 KB Output is correct
50 Correct 6 ms 2392 KB Output is correct
51 Correct 9 ms 2396 KB Output is correct
52 Correct 9 ms 2396 KB Output is correct
53 Correct 4 ms 2392 KB Output is correct
54 Correct 4 ms 2396 KB Output is correct
55 Correct 5 ms 2396 KB Output is correct
56 Correct 4 ms 2396 KB Output is correct
57 Correct 4 ms 2396 KB Output is correct
58 Correct 4 ms 2396 KB Output is correct
59 Correct 4 ms 2612 KB Output is correct
60 Correct 5 ms 2396 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1008 ms 4452 KB Output is correct
2 Correct 1008 ms 4452 KB Output is correct
3 Correct 1006 ms 4452 KB Output is correct
4 Correct 1002 ms 4448 KB Output is correct
5 Correct 1004 ms 4448 KB Output is correct
6 Correct 1014 ms 4444 KB Output is correct
7 Correct 1004 ms 4688 KB Output is correct

Subtask #7
23.0 / 23.0

# 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 13 ms 3712 KB Output is correct
6 Correct 75 ms 3932 KB Output is correct
7 Correct 280 ms 4688 KB Output is correct
8 Correct 600 ms 4444 KB Output is correct
9 Correct 1008 ms 4692 KB Output is correct
10 Correct 525 ms 4444 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 106 ms 4064 KB Output is correct
13 Correct 105 ms 4064 KB Output is correct
14 Correct 105 ms 3932 KB Output is correct
15 Correct 524 ms 4696 KB Output is correct
16 Correct 534 ms 4444 KB Output is correct
17 Correct 524 ms 4444 KB Output is correct
18 Correct 1006 ms 4692 KB Output is correct
19 Correct 1006 ms 4688 KB Output is correct
20 Correct 1006 ms 4452 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 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 1 ms 600 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 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 0 ms 344 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 1 ms 2396 KB Output is correct
62 Correct 1 ms 2392 KB Output is correct
63 Correct 2 ms 2396 KB Output is correct
64 Correct 2 ms 2396 KB Output is correct
65 Correct 3 ms 2396 KB Output is correct
66 Correct 3 ms 2616 KB Output is correct
67 Correct 5 ms 2396 KB Output is correct
68 Correct 5 ms 2616 KB Output is correct
69 Correct 6 ms 2396 KB Output is correct
70 Correct 6 ms 2392 KB Output is correct
71 Correct 9 ms 2396 KB Output is correct
72 Correct 9 ms 2396 KB Output is correct
73 Correct 4 ms 2392 KB Output is correct
74 Correct 4 ms 2396 KB Output is correct
75 Correct 5 ms 2396 KB Output is correct
76 Correct 4 ms 2396 KB Output is correct
77 Correct 4 ms 2396 KB Output is correct
78 Correct 4 ms 2396 KB Output is correct
79 Correct 4 ms 2612 KB Output is correct
80 Correct 5 ms 2396 KB Output is correct
81 Correct 1008 ms 4452 KB Output is correct
82 Correct 1008 ms 4452 KB Output is correct
83 Correct 1006 ms 4452 KB Output is correct
84 Correct 1002 ms 4448 KB Output is correct
85 Correct 1004 ms 4448 KB Output is correct
86 Correct 1014 ms 4444 KB Output is correct
87 Correct 1004 ms 4688 KB Output is correct
88 Correct 14 ms 3672 KB Output is correct
89 Correct 13 ms 3676 KB Output is correct
90 Correct 75 ms 3932 KB Output is correct
91 Correct 74 ms 3932 KB Output is correct
92 Correct 279 ms 4444 KB Output is correct
93 Correct 283 ms 4444 KB Output is correct
94 Correct 592 ms 4444 KB Output is correct
95 Correct 594 ms 4444 KB Output is correct
96 Correct 830 ms 4448 KB Output is correct
97 Correct 834 ms 4448 KB Output is correct
98 Correct 525 ms 4688 KB Output is correct
99 Correct 522 ms 4440 KB Output is correct
100 Correct 550 ms 4444 KB Output is correct
101 Correct 528 ms 4448 KB Output is correct
102 Correct 522 ms 4444 KB Output is correct
103 Correct 525 ms 4440 KB Output is correct
104 Correct 526 ms 4692 KB Output is correct
105 Correct 521 ms 4440 KB Output is correct