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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#202220#6430. Monster HunterrsjWA 144ms5992kbC++141.2kb2023-10-05 20:51:072023-10-05 20:51:08

Judging History

你现在查看的是最新测评结果

  • [2023-10-05 20:51:08]
  • 评测
  • 测评结果:WA
  • 用时:144ms
  • 内存:5992kb
  • [2023-10-05 20:51:07]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
const int N = 2077;
#define int long long
struct edge {
	int to;
	edge *nex;
}*head[N];
void add(int u,int v) {
	edge *cur=new edge;
	cur->to=v;
	cur->nex=head[u];
	head[u]=cur;
}
int f[N][N][2],siz[N],a[N],n; //1 Existed 0 Destructed
void chmin(int &x,int y) {
	x=min(x,y);
}
void dfs(int u) {
	siz[u]=1;
	for(edge *cur=head[u];cur;cur=cur->nex) {
		dfs(cur->to);
		siz[u]+=siz[cur->to];
	}
	f[u][1][1]=2*a[u];
	f[u][0][0]=0;
	int i,j;
	for(edge *cur=head[u];cur;cur=cur->nex) {
		for(i=siz[u];i>=0;i--) {
			for(j=siz[cur->to];j>0;j--) {
				chmin(f[u][i+j][1],f[u][i][1]+min(f[cur->to][j][1],f[cur->to][j][0]));
				chmin(f[u][i+j][0],f[u][i][0]+min(f[cur->to][j][1]-a[cur->to],f[cur->to][j][0]));
			}
		}
		siz[u]+=siz[cur->to];
	}
}
void get() {
	int i,j,x;
	cin>>n;
	for(i=1;i<=n;i++) head[i]=0;
	for(i=0;i<=n;i++) for(j=0;j<=n;j++) f[i][j][0]=f[i][j][1]=1e16;
	for(i=2;i<=n;i++) cin>>x,add(x,i);
	for(i=1;i<=n;i++) cin>>a[i];
	
	dfs(1);
	for(i=n;i>=0;i--) cout<<min(f[1][i][1]-a[1],f[1][i][0])<<" \n"[i==0]; 
}
signed main() {
	// freopen("1.in","r",stdin);
	int T; cin>>T;
	while(T--) get();
	return 0;
} 

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3688kb

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: 144ms
memory: 5992kb

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
-52 -52 -52 -52 -52 -52 -52 -52 -52 -52 -...

result:

wrong answer 92nd words differ - expected: '156', found: '-52'