oj.uz

Submission #576895

# Submission time Handle Problem Language Result Execution time Memory
576895 2022-06-13T17:51:52 Z cheissmart Let's Win the Election (JOI22_ho_t3) C++14
66 / 100
 2500 ms 580 KB 
#include <bits/stdc++.h>
#define IO_OP std::ios::sync_with_stdio(0); std::cin.tie(0);
#define F first
#define S second
#define V vector
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define SZ(v) int((v).size())
#define ALL(v) (v).begin(), (v).end()

using namespace std;

typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;

string _reset = "\u001b[0m", _yellow = "\u001b[33m", _bold = "\u001b[1m";
void DBG() { cerr << "]" << _reset << endl; }
template<class H, class...T> void DBG(H h, T ...t) {
	cerr << to_string(h);
	if(sizeof ...(t)) cerr << ", ";
	DBG(t...);
}
#ifdef CHEISSMART
#define debug(...) cerr << _yellow << _bold << "Line(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define debug(...)
#endif

const int INF = 1e9 + 7;

signed main()
{
	IO_OP;

	int n, k;
	cin >> n >> k;
	V<pi> a(n);
	for(int i = 0; i < n; i++) {
		cin >> a[i].S >> a[i].F;
		if(a[i].F == -1) a[i].F = INF;
	}
	sort(ALL(a));

	auto solve = [&] (int be) {
		// b: 1, 1/2, 1/3..., 1/be 
		// a: 1/(be + 1)
		V<double> dp(be + 1, INF);
		dp[0] = 0;

		auto go = [&] (int he) {
			double ans = dp[be];
			vi aux;
			for(int i = he; i < n; i++)
				aux.PB(a[i].S);
			sort(ALL(aux));
			for(int i = 0; i < k - he; i++)
				ans += 1. * aux[i] / (be + 1);
			return ans;
		};

		double ans = INF;
		ans = min(ans, go(0));
		for(int i = 0; i < k; i++) {
			V<double> ndp(be + 1, INF);
			for(int j = 0; j <= be; j++) if(dp[j] != INF) {
				// a
				ndp[j] = min(ndp[j], dp[j] + 1. * a[i].S / (be + 1));

				// b
				if(j + 1 <= be)
					ndp[j + 1] = min(ndp[j + 1], dp[j] + 1. * a[i].F / (j + 1));
			}
			swap(dp, ndp);
			ans = min(ans, go(i + 1));
		}

		return ans;
	};

	double ans = INF;
	for(int be = 0; be <= k; be++)
		ans = min(ans, solve(be));
	cout << fixed << setprecision(10) << ans << '\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 14 ms 316 KB Output is correct
6 Correct 83 ms 368 KB Output is correct
7 Correct 291 ms 320 KB Output is correct
8 Correct 619 ms 332 KB Output is correct
9 Correct 1032 ms 448 KB Output is correct
10 Correct 468 ms 388 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 14 ms 316 KB Output is correct
6 Correct 83 ms 368 KB Output is correct
7 Correct 291 ms 320 KB Output is correct
8 Correct 619 ms 332 KB Output is correct
9 Correct 1032 ms 448 KB Output is correct
10 Correct 468 ms 388 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 131 ms 504 KB Output is correct
13 Correct 242 ms 472 KB Output is correct
14 Correct 193 ms 332 KB Output is correct
15 Correct 586 ms 452 KB Output is correct
16 Correct 991 ms 448 KB Output is correct
17 Correct 925 ms 376 KB Output is correct
18 Correct 1166 ms 444 KB Output is correct
19 Correct 1796 ms 500 KB Output is correct
20 Correct 1344 ms 508 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 316 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 316 KB Output is correct
24 Correct 1 ms 316 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 316 KB Output is correct
33 Correct 1 ms 316 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 320 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 316 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 316 KB Output is correct
24 Correct 1 ms 316 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 316 KB Output is correct
33 Correct 1 ms 316 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 320 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 2 ms 316 KB Output is correct
42 Correct 2 ms 320 KB Output is correct
43 Correct 4 ms 212 KB Output is correct
44 Correct 3 ms 212 KB Output is correct
45 Correct 6 ms 212 KB Output is correct
46 Correct 6 ms 212 KB Output is correct
47 Correct 8 ms 340 KB Output is correct
48 Correct 10 ms 328 KB Output is correct
49 Correct 12 ms 348 KB Output is correct
50 Correct 11 ms 332 KB Output is correct
51 Correct 16 ms 344 KB Output is correct
52 Correct 17 ms 364 KB Output is correct
53 Correct 9 ms 212 KB Output is correct
54 Correct 9 ms 212 KB Output is correct
55 Correct 9 ms 316 KB Output is correct
56 Correct 8 ms 340 KB Output is correct
57 Correct 10 ms 340 KB Output is correct
58 Correct 8 ms 340 KB Output is correct
59 Correct 6 ms 320 KB Output is correct
60 Correct 8 ms 340 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2566 ms 580 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 14 ms 316 KB Output is correct
6 Correct 83 ms 368 KB Output is correct
7 Correct 291 ms 320 KB Output is correct
8 Correct 619 ms 332 KB Output is correct
9 Correct 1032 ms 448 KB Output is correct
10 Correct 468 ms 388 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 131 ms 504 KB Output is correct
13 Correct 242 ms 472 KB Output is correct
14 Correct 193 ms 332 KB Output is correct
15 Correct 586 ms 452 KB Output is correct
16 Correct 991 ms 448 KB Output is correct
17 Correct 925 ms 376 KB Output is correct
18 Correct 1166 ms 444 KB Output is correct
19 Correct 1796 ms 500 KB Output is correct
20 Correct 1344 ms 508 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 316 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 1 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 316 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 316 KB Output is correct
44 Correct 1 ms 316 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 1 ms 212 KB Output is correct
50 Correct 1 ms 212 KB Output is correct
51 Correct 1 ms 212 KB Output is correct
52 Correct 1 ms 316 KB Output is correct
53 Correct 1 ms 316 KB Output is correct
54 Correct 1 ms 212 KB Output is correct
55 Correct 1 ms 212 KB Output is correct
56 Correct 1 ms 320 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 2 ms 316 KB Output is correct
62 Correct 2 ms 320 KB Output is correct
63 Correct 4 ms 212 KB Output is correct
64 Correct 3 ms 212 KB Output is correct
65 Correct 6 ms 212 KB Output is correct
66 Correct 6 ms 212 KB Output is correct
67 Correct 8 ms 340 KB Output is correct
68 Correct 10 ms 328 KB Output is correct
69 Correct 12 ms 348 KB Output is correct
70 Correct 11 ms 332 KB Output is correct
71 Correct 16 ms 344 KB Output is correct
72 Correct 17 ms 364 KB Output is correct
73 Correct 9 ms 212 KB Output is correct
74 Correct 9 ms 212 KB Output is correct
75 Correct 9 ms 316 KB Output is correct
76 Correct 8 ms 340 KB Output is correct
77 Correct 10 ms 340 KB Output is correct
78 Correct 8 ms 340 KB Output is correct
79 Correct 6 ms 320 KB Output is correct
80 Correct 8 ms 340 KB Output is correct
81 Execution timed out 2566 ms 580 KB Time limit exceeded
82 Halted 0 ms 0 KB -