oj.uz

Submission #880122

# Submission time Handle Problem Language Result Execution time Memory
880122 2023-11-28T18:44:09 Z serifefedartar Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 403 ms 653144 KB 
#include <bits/stdc++.h>
using namespace std;

#define fast ios::sync_with_stdio(0);cin.tie(0);
#define s second
#define f first
typedef long long ll;
const ll MOD = 1e9 + 9;
const ll LOGN = 21;
const ll MAXN = 550;

vector<pair<int,int>> v;
float dp[MAXN][MAXN][MAXN];
int mn[MAXN][MAXN], N, K;
multiset<int> in;
void precalc() {
	for (int i = 1; i < MAXN; i++) {
		for (int j = 0; j < MAXN; j++)
			mn[i][j] = 1000000000;
	}

	for (int k = 1; k <= K; k++) {
		in = multiset<int>();
		int sum = 0;
		for (int i = N; i >= 1; i--) {
			in.insert(v[i].f);
			sum += v[i].f;
			if (in.size() > k) {
				sum -= *prev(in.end());
				in.erase(prev(in.end()));
			}
			mn[k][i] = sum;
		}
	}
}

int main() {
	fast
	cin >> N >> K;

	v = vector<pair<int,int>>(N);
	for (int i = 0; i < N; i++)
		cin >> v[i].f >> v[i].s;
	sort(v.begin(), v.end(), [&](pair<int,int> a, pair<int,int> b) {
		if (a.s == -1 && b.s == -1)
			return false;
		if (a.s == -1 && b.s != -1)
			return false;
		if (b.s == -1)
			return true;
		return (a.s < b.s);
	});
	reverse(v.begin(), v.end());
	v.push_back({-1, -1});
	reverse(v.begin(), v.end());

	precalc(); 

	for (int i = 0; i < MAXN; i++) {
		for (int j = 0; j < MAXN; j++) {
			for (int k = 0; k < MAXN; k++)
				dp[i][j][k] = 1000000000.0;
		}
	}
	for (int i = 0; i < MAXN; i++)
		dp[0][0][i] = 0;

	for (int i = 1; i <= N; i++) {
		if (v[i].s == -1)
			continue;
		for (int exp = 1; exp <= K; exp++) {
			for (int selected = 0; selected < exp; selected++) {
				// A kullan
				if (dp[i-1][selected][exp] + 1.0 * v[i].f / (exp + 1) < dp[i][selected][exp])
					dp[i][selected][exp] = dp[i-1][selected][exp] + 1.0 * v[i].f / (exp + 1);
				// B kullan
				if (dp[i-1][selected][exp] + 1.0 * v[i].s / (selected + 1) < dp[i][selected+1][exp])
					dp[i][selected+1][exp] = dp[i-1][selected][exp] + 1.0 * v[i].s / (selected + 1);
			}
		}
	}

	float ans = 1000000000.0;
	for (int i = 0; i <= N; i++) {
		for (int exp = 0; exp <= K; exp++) {
			if (dp[i][exp][exp] != 1000000000.0) {
				int rem_req = K - i;
				if (rem_req < 0)
					continue;

				if (dp[i][exp][exp] + mn[rem_req][i+1] * 1.0 / (exp + 1) < ans)
					ans = dp[i][exp][exp] + mn[rem_req][i+1] * 1.0 / (exp + 1);
			}
		}
	}

	cout << setprecision(15) << fixed << ans << "\n";
}

Compilation message

Main.cpp: In function 'void precalc()':
Main.cpp:28:18: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   28 |    if (in.size() > k) {
      |        ~~~~~~~~~~^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 189 ms 652624 KB Output is correct
2 Correct 116 ms 652628 KB Output is correct
3 Correct 116 ms 652564 KB Output is correct
4 Correct 116 ms 652636 KB Output is correct
5 Correct 116 ms 652628 KB Output is correct
6 Correct 118 ms 652624 KB Output is correct
7 Correct 128 ms 652728 KB Output is correct
8 Correct 127 ms 652612 KB Output is correct
9 Correct 128 ms 652624 KB Output is correct
10 Correct 126 ms 652772 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 189 ms 652624 KB Output is correct
2 Correct 116 ms 652628 KB Output is correct
3 Correct 116 ms 652564 KB Output is correct
4 Correct 116 ms 652636 KB Output is correct
5 Correct 116 ms 652628 KB Output is correct
6 Correct 118 ms 652624 KB Output is correct
7 Correct 128 ms 652728 KB Output is correct
8 Correct 127 ms 652612 KB Output is correct
9 Correct 128 ms 652624 KB Output is correct
10 Correct 126 ms 652772 KB Output is correct
11 Correct 120 ms 652624 KB Output is correct
12 Correct 148 ms 652672 KB Output is correct
13 Correct 137 ms 652568 KB Output is correct
14 Correct 131 ms 652628 KB Output is correct
15 Correct 263 ms 652864 KB Output is correct
16 Correct 204 ms 652624 KB Output is correct
17 Correct 159 ms 652616 KB Output is correct
18 Correct 392 ms 652824 KB Output is correct
19 Correct 284 ms 653144 KB Output is correct
20 Correct 171 ms 652640 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 652628 KB Output is correct
2 Correct 115 ms 652624 KB Output is correct
3 Correct 122 ms 652884 KB Output is correct
4 Correct 116 ms 652632 KB Output is correct
5 Correct 118 ms 652688 KB Output is correct
6 Correct 123 ms 652596 KB Output is correct
7 Correct 120 ms 652692 KB Output is correct
8 Correct 116 ms 652776 KB Output is correct
9 Correct 122 ms 652624 KB Output is correct
10 Correct 116 ms 652532 KB Output is correct
11 Correct 131 ms 652656 KB Output is correct
12 Correct 117 ms 652624 KB Output is correct
13 Correct 116 ms 652624 KB Output is correct
14 Correct 129 ms 652612 KB Output is correct
15 Correct 119 ms 652616 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 652628 KB Output is correct
2 Correct 115 ms 652624 KB Output is correct
3 Correct 122 ms 652884 KB Output is correct
4 Correct 116 ms 652632 KB Output is correct
5 Correct 118 ms 652688 KB Output is correct
6 Correct 123 ms 652596 KB Output is correct
7 Correct 120 ms 652692 KB Output is correct
8 Correct 116 ms 652776 KB Output is correct
9 Correct 122 ms 652624 KB Output is correct
10 Correct 116 ms 652532 KB Output is correct
11 Correct 131 ms 652656 KB Output is correct
12 Correct 117 ms 652624 KB Output is correct
13 Correct 116 ms 652624 KB Output is correct
14 Correct 129 ms 652612 KB Output is correct
15 Correct 119 ms 652616 KB Output is correct
16 Correct 116 ms 652624 KB Output is correct
17 Correct 122 ms 652532 KB Output is correct
18 Correct 122 ms 652664 KB Output is correct
19 Correct 117 ms 652628 KB Output is correct
20 Correct 134 ms 652696 KB Output is correct
21 Correct 118 ms 652628 KB Output is correct
22 Correct 125 ms 652624 KB Output is correct
23 Correct 118 ms 652628 KB Output is correct
24 Correct 116 ms 652556 KB Output is correct
25 Correct 120 ms 652580 KB Output is correct
26 Correct 124 ms 652732 KB Output is correct
27 Correct 116 ms 652620 KB Output is correct
28 Correct 119 ms 652764 KB Output is correct
29 Correct 122 ms 652740 KB Output is correct
30 Correct 116 ms 652748 KB Output is correct
31 Correct 117 ms 652536 KB Output is correct
32 Correct 144 ms 652652 KB Output is correct
33 Correct 115 ms 652628 KB Output is correct
34 Correct 120 ms 652600 KB Output is correct
35 Correct 116 ms 652656 KB Output is correct
36 Correct 116 ms 652624 KB Output is correct
37 Correct 122 ms 653108 KB Output is correct
38 Correct 117 ms 652924 KB Output is correct
39 Correct 116 ms 652624 KB Output is correct
40 Correct 118 ms 652588 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 652628 KB Output is correct
2 Correct 115 ms 652624 KB Output is correct
3 Correct 122 ms 652884 KB Output is correct
4 Correct 116 ms 652632 KB Output is correct
5 Correct 118 ms 652688 KB Output is correct
6 Correct 123 ms 652596 KB Output is correct
7 Correct 120 ms 652692 KB Output is correct
8 Correct 116 ms 652776 KB Output is correct
9 Correct 122 ms 652624 KB Output is correct
10 Correct 116 ms 652532 KB Output is correct
11 Correct 131 ms 652656 KB Output is correct
12 Correct 117 ms 652624 KB Output is correct
13 Correct 116 ms 652624 KB Output is correct
14 Correct 129 ms 652612 KB Output is correct
15 Correct 119 ms 652616 KB Output is correct
16 Correct 116 ms 652624 KB Output is correct
17 Correct 122 ms 652532 KB Output is correct
18 Correct 122 ms 652664 KB Output is correct
19 Correct 117 ms 652628 KB Output is correct
20 Correct 134 ms 652696 KB Output is correct
21 Correct 118 ms 652628 KB Output is correct
22 Correct 125 ms 652624 KB Output is correct
23 Correct 118 ms 652628 KB Output is correct
24 Correct 116 ms 652556 KB Output is correct
25 Correct 120 ms 652580 KB Output is correct
26 Correct 124 ms 652732 KB Output is correct
27 Correct 116 ms 652620 KB Output is correct
28 Correct 119 ms 652764 KB Output is correct
29 Correct 122 ms 652740 KB Output is correct
30 Correct 116 ms 652748 KB Output is correct
31 Correct 117 ms 652536 KB Output is correct
32 Correct 144 ms 652652 KB Output is correct
33 Correct 115 ms 652628 KB Output is correct
34 Correct 120 ms 652600 KB Output is correct
35 Correct 116 ms 652656 KB Output is correct
36 Correct 116 ms 652624 KB Output is correct
37 Correct 122 ms 653108 KB Output is correct
38 Correct 117 ms 652924 KB Output is correct
39 Correct 116 ms 652624 KB Output is correct
40 Correct 118 ms 652588 KB Output is correct
41 Correct 117 ms 653112 KB Output is correct
42 Correct 116 ms 652628 KB Output is correct
43 Correct 120 ms 652628 KB Output is correct
44 Correct 131 ms 652648 KB Output is correct
45 Correct 119 ms 652664 KB Output is correct
46 Correct 117 ms 652628 KB Output is correct
47 Correct 146 ms 652624 KB Output is correct
48 Correct 117 ms 652628 KB Output is correct
49 Correct 142 ms 652568 KB Output is correct
50 Correct 127 ms 652628 KB Output is correct
51 Correct 119 ms 652624 KB Output is correct
52 Correct 122 ms 652716 KB Output is correct
53 Correct 118 ms 652656 KB Output is correct
54 Correct 120 ms 652556 KB Output is correct
55 Correct 117 ms 652620 KB Output is correct
56 Correct 130 ms 652720 KB Output is correct
57 Correct 118 ms 652628 KB Output is correct
58 Correct 117 ms 652732 KB Output is correct
59 Correct 121 ms 652884 KB Output is correct
60 Correct 118 ms 652628 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 398 ms 652816 KB Output is correct
2 Correct 390 ms 652624 KB Output is correct
3 Correct 403 ms 653068 KB Output is correct
4 Correct 398 ms 652692 KB Output is correct
5 Correct 396 ms 652816 KB Output is correct
6 Correct 395 ms 652760 KB Output is correct
7 Correct 400 ms 652884 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 189 ms 652624 KB Output is correct
2 Correct 116 ms 652628 KB Output is correct
3 Correct 116 ms 652564 KB Output is correct
4 Correct 116 ms 652636 KB Output is correct
5 Correct 116 ms 652628 KB Output is correct
6 Correct 118 ms 652624 KB Output is correct
7 Correct 128 ms 652728 KB Output is correct
8 Correct 127 ms 652612 KB Output is correct
9 Correct 128 ms 652624 KB Output is correct
10 Correct 126 ms 652772 KB Output is correct
11 Correct 120 ms 652624 KB Output is correct
12 Correct 148 ms 652672 KB Output is correct
13 Correct 137 ms 652568 KB Output is correct
14 Correct 131 ms 652628 KB Output is correct
15 Correct 263 ms 652864 KB Output is correct
16 Correct 204 ms 652624 KB Output is correct
17 Correct 159 ms 652616 KB Output is correct
18 Correct 392 ms 652824 KB Output is correct
19 Correct 284 ms 653144 KB Output is correct
20 Correct 171 ms 652640 KB Output is correct
21 Correct 119 ms 652628 KB Output is correct
22 Correct 115 ms 652624 KB Output is correct
23 Correct 122 ms 652884 KB Output is correct
24 Correct 116 ms 652632 KB Output is correct
25 Correct 118 ms 652688 KB Output is correct
26 Correct 123 ms 652596 KB Output is correct
27 Correct 120 ms 652692 KB Output is correct
28 Correct 116 ms 652776 KB Output is correct
29 Correct 122 ms 652624 KB Output is correct
30 Correct 116 ms 652532 KB Output is correct
31 Correct 131 ms 652656 KB Output is correct
32 Correct 117 ms 652624 KB Output is correct
33 Correct 116 ms 652624 KB Output is correct
34 Correct 129 ms 652612 KB Output is correct
35 Correct 119 ms 652616 KB Output is correct
36 Correct 116 ms 652624 KB Output is correct
37 Correct 122 ms 652532 KB Output is correct
38 Correct 122 ms 652664 KB Output is correct
39 Correct 117 ms 652628 KB Output is correct
40 Correct 134 ms 652696 KB Output is correct
41 Correct 118 ms 652628 KB Output is correct
42 Correct 125 ms 652624 KB Output is correct
43 Correct 118 ms 652628 KB Output is correct
44 Correct 116 ms 652556 KB Output is correct
45 Correct 120 ms 652580 KB Output is correct
46 Correct 124 ms 652732 KB Output is correct
47 Correct 116 ms 652620 KB Output is correct
48 Correct 119 ms 652764 KB Output is correct
49 Correct 122 ms 652740 KB Output is correct
50 Correct 116 ms 652748 KB Output is correct
51 Correct 117 ms 652536 KB Output is correct
52 Correct 144 ms 652652 KB Output is correct
53 Correct 115 ms 652628 KB Output is correct
54 Correct 120 ms 652600 KB Output is correct
55 Correct 116 ms 652656 KB Output is correct
56 Correct 116 ms 652624 KB Output is correct
57 Correct 122 ms 653108 KB Output is correct
58 Correct 117 ms 652924 KB Output is correct
59 Correct 116 ms 652624 KB Output is correct
60 Correct 118 ms 652588 KB Output is correct
61 Correct 117 ms 653112 KB Output is correct
62 Correct 116 ms 652628 KB Output is correct
63 Correct 120 ms 652628 KB Output is correct
64 Correct 131 ms 652648 KB Output is correct
65 Correct 119 ms 652664 KB Output is correct
66 Correct 117 ms 652628 KB Output is correct
67 Correct 146 ms 652624 KB Output is correct
68 Correct 117 ms 652628 KB Output is correct
69 Correct 142 ms 652568 KB Output is correct
70 Correct 127 ms 652628 KB Output is correct
71 Correct 119 ms 652624 KB Output is correct
72 Correct 122 ms 652716 KB Output is correct
73 Correct 118 ms 652656 KB Output is correct
74 Correct 120 ms 652556 KB Output is correct
75 Correct 117 ms 652620 KB Output is correct
76 Correct 130 ms 652720 KB Output is correct
77 Correct 118 ms 652628 KB Output is correct
78 Correct 117 ms 652732 KB Output is correct
79 Correct 121 ms 652884 KB Output is correct
80 Correct 118 ms 652628 KB Output is correct
81 Correct 398 ms 652816 KB Output is correct
82 Correct 390 ms 652624 KB Output is correct
83 Correct 403 ms 653068 KB Output is correct
84 Correct 398 ms 652692 KB Output is correct
85 Correct 396 ms 652816 KB Output is correct
86 Correct 395 ms 652760 KB Output is correct
87 Correct 400 ms 652884 KB Output is correct
88 Correct 121 ms 652624 KB Output is correct
89 Correct 120 ms 652624 KB Output is correct
90 Correct 140 ms 652820 KB Output is correct
91 Correct 140 ms 652624 KB Output is correct
92 Correct 200 ms 652624 KB Output is correct
93 Correct 201 ms 652764 KB Output is correct
94 Correct 293 ms 652624 KB Output is correct
95 Correct 284 ms 652812 KB Output is correct
96 Correct 350 ms 652820 KB Output is correct
97 Correct 359 ms 652628 KB Output is correct
98 Correct 274 ms 652816 KB Output is correct
99 Correct 262 ms 652816 KB Output is correct
100 Correct 265 ms 652912 KB Output is correct
101 Correct 266 ms 652628 KB Output is correct
102 Correct 269 ms 652820 KB Output is correct
103 Correct 277 ms 652812 KB Output is correct
104 Correct 267 ms 652624 KB Output is correct
105 Correct 263 ms 652880 KB Output is correct