oj.uz

Submission #527879

# Submission time Handle Problem Language Result Execution time Memory
527879 2022-02-18T15:22:22 Z Jasiekstrz Let's Win the Election (JOI22_ho_t3) C++17
100 / 100
 111 ms 2376 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int INF=1e6+7;
const int N=500;
pair<int,int> t[N+10];
double dp[N+10][N+10];
double solve(int n,int k,int m)
{
	for(int j=1;j<=m;j++)
		dp[0][j]=INF;
	for(int i=1;i<=k;i++)
	{
		dp[i][0]=dp[i-1][0]+(double)t[i].fi/(m+1);
		//cerr<<dp[i][0]<<" ";
		for(int j=1;j<=m;j++)
		{
			dp[i][j]=min(dp[i-1][j]+(double)t[i].fi/(m+1),dp[i-1][j-1]+(double)t[i].se/j);
			if(j>i)
				dp[i][j]=INF;
			//cerr<<dp[i][j]<<" \n"[j==m];
		}
	}
	priority_queue<int> pq;
	for(int i=n;i>k;i--)
		pq.push(-t[i].fi);
	int w=0;
	double ans=INF;
	for(int i=k;i>=m;i--)
	{
		ans=min(ans,dp[i][m]+(double)w/(m+1));
		pq.push(-t[i].fi);
		w-=pq.top();
		pq.pop();
	}
	return ans;
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int n,k;
	cin>>n>>k;
	for(int i=1;i<=n;i++)
	{
		cin>>t[i].fi>>t[i].se;
		if(t[i].se==-1)
			t[i].se=INF;
	}
	sort(t+1,t+n+1,[](pair<int,int> a,pair<int,int> b){ return a.se<b.se; });
	double ans=INF;
	//cerr<<solve(n,k,3)<<"\n";
	//return 0;
	for(int m=0;m<=k;m++)
	{
		//cerr<<"m="<<m<<": "<<solve(n,k,m)<<"\n";
		ans=min(ans,solve(n,k,m));
	}
	cout<<fixed<<setprecision(4)<<ans<<"\n";
	return 0;
}

Subtask #1
5.0 / 5.0

# 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 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 4 ms 716 KB Output is correct
7 Correct 20 ms 1228 KB Output is correct
8 Correct 46 ms 1800 KB Output is correct
9 Correct 98 ms 2376 KB Output is correct
10 Correct 35 ms 1616 KB Output is correct

Subtask #2
5.0 / 5.0

# 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 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 4 ms 716 KB Output is correct
7 Correct 20 ms 1228 KB Output is correct
8 Correct 46 ms 1800 KB Output is correct
9 Correct 98 ms 2376 KB Output is correct
10 Correct 35 ms 1616 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 5 ms 844 KB Output is correct
13 Correct 5 ms 844 KB Output is correct
14 Correct 4 ms 844 KB Output is correct
15 Correct 50 ms 1612 KB Output is correct
16 Correct 37 ms 1612 KB Output is correct
17 Correct 36 ms 1612 KB Output is correct
18 Correct 103 ms 2252 KB Output is correct
19 Correct 98 ms 2300 KB Output is correct
20 Correct 102 ms 2252 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 1 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 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 1 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 0 ms 332 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 1 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 0 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 0 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 0 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 0 ms 332 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 1 ms 460 KB Output is correct
47 Correct 1 ms 460 KB Output is correct
48 Correct 1 ms 460 KB Output is correct
49 Correct 1 ms 588 KB Output is correct
50 Correct 2 ms 704 KB Output is correct
51 Correct 2 ms 716 KB Output is correct
52 Correct 2 ms 716 KB Output is correct
53 Correct 1 ms 460 KB Output is correct
54 Correct 1 ms 460 KB Output is correct
55 Correct 1 ms 460 KB Output is correct
56 Correct 1 ms 460 KB Output is correct
57 Correct 1 ms 576 KB Output is correct
58 Correct 1 ms 460 KB Output is correct
59 Correct 1 ms 460 KB Output is correct
60 Correct 1 ms 460 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 2252 KB Output is correct
2 Correct 102 ms 2300 KB Output is correct
3 Correct 107 ms 2292 KB Output is correct
4 Correct 108 ms 2304 KB Output is correct
5 Correct 111 ms 2296 KB Output is correct
6 Correct 98 ms 2252 KB Output is correct
7 Correct 101 ms 2304 KB Output is correct

Subtask #7
23.0 / 23.0

# 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 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 4 ms 716 KB Output is correct
7 Correct 20 ms 1228 KB Output is correct
8 Correct 46 ms 1800 KB Output is correct
9 Correct 98 ms 2376 KB Output is correct
10 Correct 35 ms 1616 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 5 ms 844 KB Output is correct
13 Correct 5 ms 844 KB Output is correct
14 Correct 4 ms 844 KB Output is correct
15 Correct 50 ms 1612 KB Output is correct
16 Correct 37 ms 1612 KB Output is correct
17 Correct 36 ms 1612 KB Output is correct
18 Correct 103 ms 2252 KB Output is correct
19 Correct 98 ms 2300 KB Output is correct
20 Correct 102 ms 2252 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 0 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 0 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 0 ms 332 KB Output is correct
44 Correct 0 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 0 ms 332 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 0 ms 332 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 0 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 1 ms 332 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 1 ms 332 KB Output is correct
59 Correct 1 ms 332 KB Output is correct
60 Correct 0 ms 332 KB Output is correct
61 Correct 1 ms 332 KB Output is correct
62 Correct 0 ms 332 KB Output is correct
63 Correct 1 ms 332 KB Output is correct
64 Correct 0 ms 332 KB Output is correct
65 Correct 1 ms 460 KB Output is correct
66 Correct 1 ms 460 KB Output is correct
67 Correct 1 ms 460 KB Output is correct
68 Correct 1 ms 460 KB Output is correct
69 Correct 1 ms 588 KB Output is correct
70 Correct 2 ms 704 KB Output is correct
71 Correct 2 ms 716 KB Output is correct
72 Correct 2 ms 716 KB Output is correct
73 Correct 1 ms 460 KB Output is correct
74 Correct 1 ms 460 KB Output is correct
75 Correct 1 ms 460 KB Output is correct
76 Correct 1 ms 460 KB Output is correct
77 Correct 1 ms 576 KB Output is correct
78 Correct 1 ms 460 KB Output is correct
79 Correct 1 ms 460 KB Output is correct
80 Correct 1 ms 460 KB Output is correct
81 Correct 98 ms 2252 KB Output is correct
82 Correct 102 ms 2300 KB Output is correct
83 Correct 107 ms 2292 KB Output is correct
84 Correct 108 ms 2304 KB Output is correct
85 Correct 111 ms 2296 KB Output is correct
86 Correct 98 ms 2252 KB Output is correct
87 Correct 101 ms 2304 KB Output is correct
88 Correct 1 ms 460 KB Output is correct
89 Correct 1 ms 460 KB Output is correct
90 Correct 3 ms 716 KB Output is correct
91 Correct 4 ms 716 KB Output is correct
92 Correct 16 ms 1228 KB Output is correct
93 Correct 16 ms 1228 KB Output is correct
94 Correct 44 ms 1740 KB Output is correct
95 Correct 43 ms 1740 KB Output is correct
96 Correct 77 ms 1996 KB Output is correct
97 Correct 75 ms 2116 KB Output is correct
98 Correct 38 ms 1744 KB Output is correct
99 Correct 37 ms 1612 KB Output is correct
100 Correct 39 ms 1704 KB Output is correct
101 Correct 38 ms 1612 KB Output is correct
102 Correct 38 ms 1612 KB Output is correct
103 Correct 36 ms 1704 KB Output is correct
104 Correct 37 ms 1612 KB Output is correct
105 Correct 37 ms 1612 KB Output is correct