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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#139758#5507. InvestorsFlamireWA 6ms5852kbC++141.1kb2023-08-14 14:57:222023-08-14 14:57:24

Judging History

你现在查看的是最新测评结果

  • [2023-08-14 14:57:24]
  • 评测
  • 测评结果:WA
  • 用时:6ms
  • 内存:5852kb
  • [2023-08-14 14:57:22]
  • 提交

answer

#include <bits/stdc++.h>
#define ll long long
using namespace std;
int t,n,k,a[6011],sum[6011][6011];pair<ll,int> dp[6011];
int main()
{
	scanf("%d",&t);while(t--)
	{
		scanf("%d%d",&n,&k);
		for(int i=1;i<=n;++i)scanf("%d",a+i);int cnt=0;
		for(int i=0;i<=n+1;++i)for(int j=i;j<=n+1;++j)sum[i][j]=0;
		for(int i=1;i<=n;++i)
		{
			for(int j=i+1;j<=n;++j)if(a[i]>a[j])++sum[i][j],++cnt;
		}
		if(!k){printf("%d\n",cnt);continue;}
		for(int i=n;i;--i)
		{
			for(int l=1;l+i-1<=n;++l)
			{
				int r=l+i-1;
				sum[l][r]+=sum[l-1][r]+sum[l][r+1]-sum[l-1][r+1];
			}
		}
		int L=0,R=n*n,K=0;ll ans=0;
		while(L<=R)
		{
			int M=L+R>>1;
			dp[1]=pair<ll,int>(0,0);
			for(int i=2;i<=n;++i)
			{
				dp[i].first=-1e18;
				for(int j=1;j<i;++j)
				{
					int w=sum[i-1][i]-sum[j-1][i];
					dp[i]=max(dp[i],pair<ll,int>(dp[j].first+w-M,dp[j].second+1));
				}
			}
			auto res=dp[1];
			for(int i=2;i<=n;++i)res=max(res,dp[i]);
			if(res.second>=k)K=M,ans=res.first,L=M+1;else R=M-1;
		}
		printf("%lld\n",cnt-(ans+1ll*k*K));
	}return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 3656kb

input:

2
6 1
4 5 6 2 2 1
6 2
4 5 6 2 2 1

output:

2
0

result:

ok 2 lines

Test #2:

score: -100
Wrong Answer
time: 6ms
memory: 5852kb

input:

349
6 2
2 1 2 1 2 1
48 12
42 47 39 39 27 25 22 44 45 13 5 48 38 4 37 6 24 10 42 38 12 37 31 19 44 6 29 17 7 12 7 26 35 24 15 9 37 3 27 21 33 29 34 20 14 30 31 21
48 12
1 43 17 46 17 39 40 22 25 2 22 12 4 11 38 12 4 11 1 5 39 44 37 10 19 20 42 45 2 45 37 20 48 34 16 41 23 18 13 44 47 21 29 4 23 18 16...

output:

1
18
15
145
0
2
1
0
13
13
23
0
0
0
1
0
0
0
0
0
0
0
0
161
3
0
0
1
0
4
0
0
0
0
1
2
3
0
0
1
0
0
1
0
0
1
4
0
0
0
0
0
0
0
0
2
0
2
0
2
8
280
0
0
34
4
0
1
0
0
3
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
2
0
0
0
0
0
0
0
8
1
8
0
0
0
0
1
11
5
0
0
0
6
0
1
0
0
0
1
0
0
0
0
0
0
1
0
0
6
0
0
0
0
13
1
0
0
0
...

result:

wrong answer 30th lines differ - expected: '0', found: '4'