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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#571937#6430. Monster Hunterxly_tyty#WA 88ms5900kbC++171.2kb2024-09-18 10:29:562024-09-18 10:29:56

Judging History

你现在查看的是最新测评结果

  • [2024-09-18 10:29:56]
  • 评测
  • 测评结果:WA
  • 用时:88ms
  • 内存:5900kb
  • [2024-09-18 10:29:56]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
const long long N=2e3+10,INF=1e15;
ll n,m,k,a[N],dp[N][N][2],siz[N],sum[N];
bool st[N];
vector<int>p[N];
void dfs(int u)
{
	dp[u][0][0]=0;
	dp[u][1][1]=a[u];
	siz[u]=1;
	sum[u]=a[u];
	for(int x:p[u])dp[u][1][1]+=a[x];
	for(int x:p[u])
	{
		dfs(x);
		siz[u]+=siz[x];
		sum[u]+=sum[x]+a[x];
		for(int i=siz[u];i>=0;i--)
		{
			for(int j=siz[x];j>=0;j--)
			{
				dp[u][i+j][0]=max(dp[u][i+j][0],dp[u][i][0]+max(dp[x][j][1]+a[x],dp[x][j][0]));
				dp[u][i+j][1]=max(dp[u][i+j][1],dp[u][i][1]+max(dp[x][j][1],dp[x][j][0]));
			}
		}
		siz[u]+=siz[x];
	}
}
void solve()
{
	cin>>n;
	for(int i=1;i<=n;i++)p[i].clear();
	for(int i=2;i<=n;i++)
	{
		int x;cin>>x;
		p[x].push_back(i);
	}
	for(int i=1;i<=n;i++)cin>>a[i];
	for(int i=0;i<=n;i++)
	for(int j=0;j<=n;j++)dp[i][j][0]=dp[i][j][1]=-INF;
	dfs(1);
	for(int i=0;i<=n-1;i++)cout<<sum[1]-max(dp[1][i][0],dp[1][i][1])<<' ';
	cout<<sum[1]-max(dp[1][n][1],dp[1][n][0])<<endl;
}
int main()
{
    cin.tie(0), cout.tie(0), ios::sync_with_stdio(false);
    int T;cin>>T;
    while(T--)solve();
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 3708kb

input:

3
5
1 2 3 4
1 2 3 4 5
9
1 2 3 4 3 4 6 6
8 4 9 4 4 5 2 4 1
12
1 2 2 4 5 3 4 3 8 10 11
9 1 3 5 10 10 7 3 7 9 4 9

output:

29 16 9 4 1 0
74 47 35 25 15 11 7 3 1 0
145 115 93 73 55 42 32 22 14 8 4 1 0

result:

ok 29 tokens

Test #2:

score: -100
Wrong Answer
time: 88ms
memory: 5900kb

input:

179
20
1 1 1 4 5 5 7 7 9 9 11 12 13 14 5 16 17 16 19
3 9 3 2 7 7 2 8 5 7 5 4 7 4 2 4 9 2 7 9
19
1 1 3 4 3 6 7 6 6 10 10 12 13 13 12 16 16 18
8 8 3 6 10 1 1 1 2 2 3 3 3 10 5 5 7 10 5
2
1
10 4
2
1
2 7
14
1 1 3 4 4 6 4 8 9 10 11 8 13
4 4 6 6 10 8 9 5 7 1 4 7 9 8
6
1 2 3 3 5
2 7 5 6 1 6
11
1 2 3 3 5 6 6...

output:

209 182 159 137 117 99 81 65 56 47 39 32 25 19 15 11 8 6 4 2 0
178 151 129 108 89 74 64 54 44 36 29 23 18 13 10 7 5 2 1 0
18 4 0
16 2 0
172 137 111 93 78 63 49 39 31 23 16 10 5 1 0
52 33 21 9 3 1 0
109 72 53 39 29 22 16 10 5 2 1 0
105 69 47 35 25 17 12 7 3 0
-512 -524 -510 -510 -510 -510 -510 -510 -...

result:

wrong answer 92nd words differ - expected: '156', found: '-512'