oj.uz

Submission #526833

# Submission time Handle Problem Language Result Execution time Memory
526833 2022-02-16T08:38:25 Z abc864197532 Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 299 ms 328 KB 
#include <bits/stdc++.h>
using namespace std;
#define lli long long int
#define pb push_back
#define eb emplace_back
#define pii pair<int,int>
#define X first
#define Y second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
void abc() {cout << endl;}
template <typename T, typename ...U> void abc(T i, U ...j) {
	cout << i << ' ', abc(j...);
}
template <typename T> void printv(T l, T r) {
	for (; l != r; ++l) cout << *l << " \n"[l + 1 == r];
}
#ifdef Doludu
#define test(x...) abc("[" + string(#x) + "]", x)
#define owo freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#else
#define test(x...) void(0)
#define owo ios::sync_with_stdio(false), cin.tie(0);
#endif
const int N = 200000;

int main () {
	owo;
	int n, k;
	cin >> n >> k;
	vector <pii> state(n);
	for (int i = 0; i < n; ++i) {
		cin >> state[i].X >> state[i].Y;
		if (state[i].Y == -1)
			state[i].Y = 1 << 30;
	}
	/*
	 let number of choose B be x
	 B[i] / 1 + B[i] / 2 + ... + B[i] / x + A[i] / (x + 1) + A[i] / (x + 1) + ...
	 dp[i][j][k] -> consider first i state, choose j for B, k for C the min answer
	 */
	sort(all(state), [&](pii i, pii j) {
		if (i.Y == j.Y)
			return i.X < j.X;
		return i.Y < j.Y;
	});
	double ans = 1e9;
	for (int x = 0; x <= k; ++x) {
		vector <double> dp(n + 1, 1e9);
		dp[0] = 0;
		for (int i = 0; i < n; ++i) {
			vector <double> nxt(n + 1, 1e9);
			for (int j = 0; j <= i + 1; ++j) {
				if (j) 
					nxt[j] = min(nxt[j], dp[j - 1] + double(state[i].X) / (x + 1));
				if (i + 1 - j <= x)
					nxt[j] = min(nxt[j], dp[j] + double(state[i].Y) / (i + 1 - j));
				else
					nxt[j] = min(nxt[j], dp[j]);
			}
			dp = nxt;
		}
		ans = min(ans, dp[k - x]);
	}
	cout << fixed << setprecision(10) << ans << endl;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 22 ms 320 KB Output is correct
6 Correct 56 ms 304 KB Output is correct
7 Correct 121 ms 304 KB Output is correct
8 Correct 191 ms 300 KB Output is correct
9 Correct 261 ms 300 KB Output is correct
10 Correct 191 ms 324 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 22 ms 320 KB Output is correct
6 Correct 56 ms 304 KB Output is correct
7 Correct 121 ms 304 KB Output is correct
8 Correct 191 ms 300 KB Output is correct
9 Correct 261 ms 300 KB Output is correct
10 Correct 191 ms 324 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 68 ms 204 KB Output is correct
13 Correct 67 ms 300 KB Output is correct
14 Correct 70 ms 204 KB Output is correct
15 Correct 182 ms 304 KB Output is correct
16 Correct 177 ms 204 KB Output is correct
17 Correct 173 ms 308 KB Output is correct
18 Correct 299 ms 308 KB Output is correct
19 Correct 266 ms 304 KB Output is correct
20 Correct 266 ms 308 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 0 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 0 ms 204 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 0 ms 204 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 0 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 0 ms 204 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 0 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 2 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 2 ms 204 KB Output is correct
46 Correct 2 ms 204 KB Output is correct
47 Correct 2 ms 204 KB Output is correct
48 Correct 2 ms 204 KB Output is correct
49 Correct 3 ms 204 KB Output is correct
50 Correct 2 ms 204 KB Output is correct
51 Correct 3 ms 204 KB Output is correct
52 Correct 3 ms 204 KB Output is correct
53 Correct 2 ms 204 KB Output is correct
54 Correct 2 ms 204 KB Output is correct
55 Correct 3 ms 204 KB Output is correct
56 Correct 2 ms 204 KB Output is correct
57 Correct 2 ms 204 KB Output is correct
58 Correct 2 ms 204 KB Output is correct
59 Correct 2 ms 204 KB Output is correct
60 Correct 2 ms 204 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 284 ms 204 KB Output is correct
2 Correct 259 ms 304 KB Output is correct
3 Correct 261 ms 300 KB Output is correct
4 Correct 274 ms 300 KB Output is correct
5 Correct 258 ms 304 KB Output is correct
6 Correct 268 ms 304 KB Output is correct
7 Correct 255 ms 204 KB Output is correct

Subtask #7
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 22 ms 320 KB Output is correct
6 Correct 56 ms 304 KB Output is correct
7 Correct 121 ms 304 KB Output is correct
8 Correct 191 ms 300 KB Output is correct
9 Correct 261 ms 300 KB Output is correct
10 Correct 191 ms 324 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 68 ms 204 KB Output is correct
13 Correct 67 ms 300 KB Output is correct
14 Correct 70 ms 204 KB Output is correct
15 Correct 182 ms 304 KB Output is correct
16 Correct 177 ms 204 KB Output is correct
17 Correct 173 ms 308 KB Output is correct
18 Correct 299 ms 308 KB Output is correct
19 Correct 266 ms 304 KB Output is correct
20 Correct 266 ms 308 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 0 ms 204 KB Output is correct
37 Correct 0 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 0 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 0 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 0 ms 204 KB Output is correct
53 Correct 0 ms 204 KB Output is correct
54 Correct 0 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 0 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 0 ms 204 KB Output is correct
59 Correct 0 ms 204 KB Output is correct
60 Correct 0 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 2 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 2 ms 204 KB Output is correct
66 Correct 2 ms 204 KB Output is correct
67 Correct 2 ms 204 KB Output is correct
68 Correct 2 ms 204 KB Output is correct
69 Correct 3 ms 204 KB Output is correct
70 Correct 2 ms 204 KB Output is correct
71 Correct 3 ms 204 KB Output is correct
72 Correct 3 ms 204 KB Output is correct
73 Correct 2 ms 204 KB Output is correct
74 Correct 2 ms 204 KB Output is correct
75 Correct 3 ms 204 KB Output is correct
76 Correct 2 ms 204 KB Output is correct
77 Correct 2 ms 204 KB Output is correct
78 Correct 2 ms 204 KB Output is correct
79 Correct 2 ms 204 KB Output is correct
80 Correct 2 ms 204 KB Output is correct
81 Correct 284 ms 204 KB Output is correct
82 Correct 259 ms 304 KB Output is correct
83 Correct 261 ms 300 KB Output is correct
84 Correct 274 ms 300 KB Output is correct
85 Correct 258 ms 304 KB Output is correct
86 Correct 268 ms 304 KB Output is correct
87 Correct 255 ms 204 KB Output is correct
88 Correct 21 ms 204 KB Output is correct
89 Correct 21 ms 328 KB Output is correct
90 Correct 55 ms 308 KB Output is correct
91 Correct 59 ms 304 KB Output is correct
92 Correct 137 ms 204 KB Output is correct
93 Correct 126 ms 204 KB Output is correct
94 Correct 185 ms 300 KB Output is correct
95 Correct 186 ms 304 KB Output is correct
96 Correct 246 ms 316 KB Output is correct
97 Correct 228 ms 204 KB Output is correct
98 Correct 175 ms 304 KB Output is correct
99 Correct 177 ms 308 KB Output is correct
100 Correct 186 ms 328 KB Output is correct
101 Correct 169 ms 304 KB Output is correct
102 Correct 175 ms 204 KB Output is correct
103 Correct 182 ms 304 KB Output is correct
104 Correct 171 ms 204 KB Output is correct
105 Correct 170 ms 308 KB Output is correct