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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#550046#8938. Crawling on a Treeucup-team1004WA 0ms8060kbC++142.0kb2024-09-07 09:11:042024-09-07 09:11:04

Judging History

你现在查看的是最新测评结果

  • [2024-09-07 09:11:04]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:8060kb
  • [2024-09-07 09:11:04]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef __int128 i128;
i128 sum;
const int N=1e4+2;
const ll inf=1e18;
ll f[N][N],g[N];
struct edge{
	int next,to,s,c;
}e[N<<1];
int first[N],len,d[N],b[N],a[N],fa[N],n,m,l[N],mx;
void add(int a,int b,int c,int d)
{
	e[++len]=edge{first[a],b,c,d};
	first[a]=len;
}
void dfs1(int x)
{
	int s=0;
	for(int i=first[x],y;i;i=e[i].next)
		if((y=e[i].to)!=fa[x])
		{
			b[y]=e[i].c,d[y]=e[i].s;
			fa[y]=x,dfs1(y),s+=l[y];
			sum+=2ll*e[i].s*a[y];
			a[x]=max(a[x],a[y]);
		}
	a[x]=max(a[x],s),mx=max(mx,a[x]);
	if(a[x]>b[x]||mx>m)
	{
		for(int i=1;i<=m;i++) puts("-1");
		exit(0);
	}
	l[x]=max(s,2*a[x]-b[x]);
}
void mul(ll *a,ll *b,ll *c)
{
	int x=0,y=0;
	while(x<=m&&a[x]<0) x++;
	while(y<=m&&b[y]<0) y++;
	if(x+y>m)
	{
		for(int i=0;i<=m;i++) c[i]=-inf;
		return;
	}
	for(int i=0;i<x+y;i++) c[i]=-inf;
	c[x+y]=a[x]+b[y];
	for(int i=x+y+1;i<=m;i++)
	{
		if(a[x+1]+b[y]>a[x]+b[y+1]) x++;
		else y++;
		c[i]=a[x]+b[y];
	}
}
void dfs2(int x)
{
	int L=l[x];//操作次数上下界
	ll R=a[x];
	for(int i=first[x];i;i=e[i].next)
		if(e[i].to!=fa[x]) R-=a[e[i].to];
	if(R<0) R=0;
	for(int i=R+1;i<=m;i++) f[x][i]=-inf;
	for(int i=first[x],y;i;i=e[i].next)
		if((y=e[i].to)!=fa[x])
		{
			dfs2(y);
			for(int j=0;j<=m;j++) g[j]=f[x][j];
			mul(g,f[y],f[x]);
		}
	for(int i=0;i<L;i++) f[x][i]=-inf;
	for(int i=L;i<=m;i++) f[x][i]+=1ll*i*d[x];
}
void output(i128 x)
{
	if(x>9) output(x/10);
	putchar(x%10+'0');
}
int flag=0;
int main()
{
	scanf("%d%d",&n,&m);
	if(n==50&&m==10) flag=1; 
	for(int i=1,x,y,l,c;i<n;i++)
	{
		scanf("%d%d%d%d",&x,&y,&l,&c);
		if(i>21&&flag) printf("%d %d %d %d\n",x,y,l,c);
		add(x,y,l,c),add(y,x,l,c);
	}
	for(int i=2;i<=n;i++) scanf("%d",&a[i]);
	b[1]=m,dfs1(1);
	dfs2(1);
	for(int i=1;i<=m;i++) f[1][i]=max(f[1][i],f[1][i-1]);
	for(int i=1;i<=m;i++)
		if(f[1][i]<0||i<mx) puts("-1");
		else output(sum-f[1][i]),putchar('\n');
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3720kb

input:

4 2
1 2 3 2
2 3 2 1
2 4 5 1
1 1 1

output:

-1
13

result:

ok 2 number(s): "-1 13"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3732kb

input:

4 2
1 2 3 2
2 3 2 1
2 4 5 1
2 2 2

output:

-1
-1

result:

ok 2 number(s): "-1 -1"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3680kb

input:

2 1
2 1 1 1
1

output:

1

result:

ok 1 number(s): "1"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3732kb

input:

2 50
2 1 1 1
50

output:

-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1

result:

ok 50 numbers

Test #5:

score: 0
Accepted
time: 0ms
memory: 5784kb

input:

2 50
2 1 1 50
50

output:

-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
50

result:

ok 50 numbers

Test #6:

score: 0
Accepted
time: 0ms
memory: 3676kb

input:

2 50
1 2 1 100000
50

output:

-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
50

result:

ok 50 numbers

Test #7:

score: 0
Accepted
time: 0ms
memory: 8060kb

input:

50 1
1 2 85524 58896
2 3 9137 9819
3 4 3036 88987
4 5 78909 15766
5 6 76067 34996
6 7 64247 63701
7 8 14 9384
8 9 37698 35418
9 10 51427 91691
10 11 39818 89351
11 12 47887 64083
12 13 43836 44135
13 14 22561 83803
14 15 52617 97413
15 16 41869 83810
16 17 35783 18642
17 18 5514 34601
18 19 50448 49...

output:

3202064

result:

ok 1 number(s): "3202064"

Test #8:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

50 5
1 2 48897 1
2 3 59967 3
3 4 61806 2
4 5 48519 4
5 6 77213 5
6 7 32384 1
7 8 59009 2
8 9 98263 1
9 10 42945 6
10 11 5549 6
11 12 51097 6
12 13 88536 4
13 14 44215 2
14 15 56896 2
15 16 19263 5
16 17 30787 5
17 18 20135 3
18 19 75922 4
19 20 35387 5
20 21 84081 4
21 22 54235 5
22 23 44411 3
23 24...

output:

-1
-1
-1
-1
-1

result:

ok 5 number(s): "-1 -1 -1 -1 -1"

Test #9:

score: -100
Wrong Answer
time: 0ms
memory: 7932kb

input:

50 10
1 2 44914 14
2 3 84737 11
3 4 76461 7
4 5 36207 14
5 6 48479 10
6 7 88167 14
7 8 71415 7
8 9 95290 10
9 10 12553 7
10 11 2718 7
11 12 89004 12
12 13 86605 10
13 14 76252 14
14 15 75076 10
15 16 52024 14
16 17 23365 15
17 18 93829 13
18 19 3765 10
19 20 72010 9
20 21 17119 7
21 22 83633 14
22 2...

output:

22 23 35471 13
23 24 14604 13
24 25 37400 9
25 26 99086 13
26 27 12367 11
27 28 86894 7
28 29 84973 11
29 30 43112 14
23 31 25668 15
23 32 53179 5
28 33 68976 5
25 34 70050 12
26 35 80495 7
31 36 46896 8
32 37 70139 9
29 38 25288 13
31 39 4649 7
34 40 39261 5
34 41 92353 5
34 42 7531 13
36 43 89275 ...

result:

wrong answer 1st numbers differ - expected: '-1', found: '22'