oj.uz

Submission #1049560

# Submission time Handle Problem Language Result Execution time Memory
1049560 2024-08-08T23:10:55 Z ymm Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 714 ms 4524 KB 
#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (ll)(r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (ll)(l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;

const int N = 512;
const ll inf = 1e15;
double dp1_[N][N], dp2_[N][N];
auto dp1 = dp1_, dp2 = dp2_;
pll a[N];
int n;

#define SMIN(x, y) ((x) = min((x), (y)))

double calc(ll col_tar, ll tot_tar)
{
	dp1[0][0] = 0;
	Loop (pos,0,n) {
		Loop (col,0,pos+1) Loop (tot,col,pos+1)
			dp2[col][tot] = dp1[col][tot];
		Loop (col,0,pos+2)
			dp2[col][pos+1] = inf;
		if (a[pos].first != inf) {
			Loop (col,0,pos+1) Loop (tot,col,pos+1)
				SMIN(dp2[col+1][tot+1], dp1[col][tot] + (double)a[pos].first / (col + 1));
		}
		Loop (col,0,pos+1) Loop (tot,col,pos+1)
			SMIN(dp2[col][tot+1], dp1[col][tot] + (double)a[pos].second / (col_tar + 1));
		swap(dp1, dp2);
	}
	return dp1[col_tar][tot_tar];
}

int main()
{
	cin.tie(0) -> sync_with_stdio(false);
	int k;
	cin >> n >> k;
	Loop (i,0,n) {
		cin >> a[i].second >> a[i].first;
		if (a[i].first == -1)
			a[i].first = inf;
	}
	sort(a, a + n);
	int l = 0, r = k-1;
	while (l < r) {
		int m = (l + r)/2;
		if (calc(m, k) > calc(m+1, k))
			l = m+1;
		else
			r = m;
	}
	cout << fixed << setprecision(9);
	cout << calc(l, k) << '\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2392 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 290 ms 4504 KB Output is correct
6 Correct 324 ms 4444 KB Output is correct
7 Correct 365 ms 4444 KB Output is correct
8 Correct 430 ms 4444 KB Output is correct
9 Correct 427 ms 4444 KB Output is correct
10 Correct 441 ms 4444 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2392 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 290 ms 4504 KB Output is correct
6 Correct 324 ms 4444 KB Output is correct
7 Correct 365 ms 4444 KB Output is correct
8 Correct 430 ms 4444 KB Output is correct
9 Correct 427 ms 4444 KB Output is correct
10 Correct 441 ms 4444 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 538 ms 4444 KB Output is correct
13 Correct 430 ms 4432 KB Output is correct
14 Correct 370 ms 4508 KB Output is correct
15 Correct 594 ms 4432 KB Output is correct
16 Correct 422 ms 4444 KB Output is correct
17 Correct 366 ms 4436 KB Output is correct
18 Correct 615 ms 4504 KB Output is correct
19 Correct 476 ms 4436 KB Output is correct
20 Correct 418 ms 4444 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2508 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 0 ms 2396 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 2512 KB Output is correct
22 Correct 0 ms 2392 KB Output is correct
23 Correct 0 ms 2396 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 0 ms 2396 KB Output is correct
26 Correct 0 ms 2508 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 0 ms 2396 KB Output is correct
32 Correct 0 ms 2396 KB Output is correct
33 Correct 0 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 0 ms 2396 KB Output is correct
36 Correct 0 ms 2396 KB Output is correct
37 Correct 0 ms 2396 KB Output is correct
38 Correct 0 ms 2396 KB Output is correct
39 Correct 0 ms 2396 KB Output is correct
40 Correct 0 ms 2396 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2508 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct
19 Correct 0 ms 2396 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 2512 KB Output is correct
22 Correct 0 ms 2392 KB Output is correct
23 Correct 0 ms 2396 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 0 ms 2396 KB Output is correct
26 Correct 0 ms 2508 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 0 ms 2396 KB Output is correct
32 Correct 0 ms 2396 KB Output is correct
33 Correct 0 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 0 ms 2396 KB Output is correct
36 Correct 0 ms 2396 KB Output is correct
37 Correct 0 ms 2396 KB Output is correct
38 Correct 0 ms 2396 KB Output is correct
39 Correct 0 ms 2396 KB Output is correct
40 Correct 0 ms 2396 KB Output is correct
41 Correct 5 ms 2904 KB Output is correct
42 Correct 3 ms 2908 KB Output is correct
43 Correct 4 ms 2908 KB Output is correct
44 Correct 3 ms 2908 KB Output is correct
45 Correct 5 ms 2904 KB Output is correct
46 Correct 4 ms 2908 KB Output is correct
47 Correct 5 ms 2908 KB Output is correct
48 Correct 4 ms 2908 KB Output is correct
49 Correct 5 ms 2908 KB Output is correct
50 Correct 5 ms 2908 KB Output is correct
51 Correct 4 ms 2908 KB Output is correct
52 Correct 4 ms 2908 KB Output is correct
53 Correct 4 ms 2764 KB Output is correct
54 Correct 4 ms 2908 KB Output is correct
55 Correct 6 ms 2904 KB Output is correct
56 Correct 5 ms 2904 KB Output is correct
57 Correct 5 ms 2904 KB Output is correct
58 Correct 5 ms 2904 KB Output is correct
59 Correct 4 ms 2920 KB Output is correct
60 Correct 4 ms 2920 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 708 ms 4432 KB Output is correct
2 Correct 676 ms 4360 KB Output is correct
3 Correct 698 ms 4512 KB Output is correct
4 Correct 680 ms 4432 KB Output is correct
5 Correct 670 ms 4432 KB Output is correct
6 Correct 693 ms 4512 KB Output is correct
7 Correct 668 ms 4504 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2392 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 290 ms 4504 KB Output is correct
6 Correct 324 ms 4444 KB Output is correct
7 Correct 365 ms 4444 KB Output is correct
8 Correct 430 ms 4444 KB Output is correct
9 Correct 427 ms 4444 KB Output is correct
10 Correct 441 ms 4444 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 538 ms 4444 KB Output is correct
13 Correct 430 ms 4432 KB Output is correct
14 Correct 370 ms 4508 KB Output is correct
15 Correct 594 ms 4432 KB Output is correct
16 Correct 422 ms 4444 KB Output is correct
17 Correct 366 ms 4436 KB Output is correct
18 Correct 615 ms 4504 KB Output is correct
19 Correct 476 ms 4436 KB Output is correct
20 Correct 418 ms 4444 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 0 ms 2396 KB Output is correct
24 Correct 0 ms 2396 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 0 ms 2396 KB Output is correct
27 Correct 0 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 0 ms 2396 KB Output is correct
30 Correct 0 ms 2396 KB Output is correct
31 Correct 0 ms 2396 KB Output is correct
32 Correct 0 ms 2396 KB Output is correct
33 Correct 0 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 0 ms 2396 KB Output is correct
36 Correct 0 ms 2508 KB Output is correct
37 Correct 0 ms 2396 KB Output is correct
38 Correct 1 ms 2392 KB Output is correct
39 Correct 0 ms 2396 KB Output is correct
40 Correct 0 ms 2396 KB Output is correct
41 Correct 0 ms 2512 KB Output is correct
42 Correct 0 ms 2392 KB Output is correct
43 Correct 0 ms 2396 KB Output is correct
44 Correct 0 ms 2396 KB Output is correct
45 Correct 0 ms 2396 KB Output is correct
46 Correct 0 ms 2508 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 0 ms 2396 KB Output is correct
49 Correct 1 ms 2392 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 0 ms 2396 KB Output is correct
52 Correct 0 ms 2396 KB Output is correct
53 Correct 0 ms 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 0 ms 2396 KB Output is correct
56 Correct 0 ms 2396 KB Output is correct
57 Correct 0 ms 2396 KB Output is correct
58 Correct 0 ms 2396 KB Output is correct
59 Correct 0 ms 2396 KB Output is correct
60 Correct 0 ms 2396 KB Output is correct
61 Correct 5 ms 2904 KB Output is correct
62 Correct 3 ms 2908 KB Output is correct
63 Correct 4 ms 2908 KB Output is correct
64 Correct 3 ms 2908 KB Output is correct
65 Correct 5 ms 2904 KB Output is correct
66 Correct 4 ms 2908 KB Output is correct
67 Correct 5 ms 2908 KB Output is correct
68 Correct 4 ms 2908 KB Output is correct
69 Correct 5 ms 2908 KB Output is correct
70 Correct 5 ms 2908 KB Output is correct
71 Correct 4 ms 2908 KB Output is correct
72 Correct 4 ms 2908 KB Output is correct
73 Correct 4 ms 2764 KB Output is correct
74 Correct 4 ms 2908 KB Output is correct
75 Correct 6 ms 2904 KB Output is correct
76 Correct 5 ms 2904 KB Output is correct
77 Correct 5 ms 2904 KB Output is correct
78 Correct 5 ms 2904 KB Output is correct
79 Correct 4 ms 2920 KB Output is correct
80 Correct 4 ms 2920 KB Output is correct
81 Correct 708 ms 4432 KB Output is correct
82 Correct 676 ms 4360 KB Output is correct
83 Correct 698 ms 4512 KB Output is correct
84 Correct 680 ms 4432 KB Output is correct
85 Correct 670 ms 4432 KB Output is correct
86 Correct 693 ms 4512 KB Output is correct
87 Correct 668 ms 4504 KB Output is correct
88 Correct 465 ms 4432 KB Output is correct
89 Correct 497 ms 4432 KB Output is correct
90 Correct 548 ms 4524 KB Output is correct
91 Correct 525 ms 4292 KB Output is correct
92 Correct 615 ms 4508 KB Output is correct
93 Correct 609 ms 4508 KB Output is correct
94 Correct 706 ms 4512 KB Output is correct
95 Correct 693 ms 4436 KB Output is correct
96 Correct 683 ms 4500 KB Output is correct
97 Correct 673 ms 4512 KB Output is correct
98 Correct 603 ms 4436 KB Output is correct
99 Correct 616 ms 4504 KB Output is correct
100 Correct 648 ms 4436 KB Output is correct
101 Correct 672 ms 4432 KB Output is correct
102 Correct 603 ms 4504 KB Output is correct
103 Correct 714 ms 4432 KB Output is correct
104 Correct 611 ms 4504 KB Output is correct
105 Correct 695 ms 4504 KB Output is correct