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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#541621#8938. Crawling on a Treeucup-team3510#WA 1ms8064kbC++201.4kb2024-08-31 20:13:362024-08-31 20:13:36

Judging History

This is the latest submission verdict.

  • [2024-08-31 20:13:36]
  • Judged
  • Verdict: WA
  • Time: 1ms
  • Memory: 8064kb
  • [2024-08-31 20:13:36]
  • Submitted

answer

#include <bits/stdc++.h>
#define N 10011
#define ll long long
#define sht short
using namespace std;
sht f[N][N];ll g[N][N];
int n,M,c[N];
struct edge{int v,w,k;};
vector<edge> G[N];
sht nf[N],tf[N];ll ng[N],tg[N];
void dfs(int u,int F)
{
	for(auto [v,w,k]:G[u])if(v^F)dfs(v,u);
	f[u][0]=g[u][0]=0;
	for(auto [v,w,k]:G[u])if(v^F)
	{
		for(int i=0;i<=M;++i)
		{
			for(int j=0;i+j<=M;++j)
			{
				nf[i+j]=min((int)nf[i+j],f[u][i]+f[v][j]);
				ng[i+j]=min(ng[i+j],g[u][i]+g[v][j]+1ll*(j+2*f[v][j])*w);
			}
		}
		for(int i=0;i<=M;++i)f[u][i]=nf[i],g[u][i]=ng[i],nf[i]=M+1,ng[i]=1e18;
	}
	for(int i=1;i<=M;++i)f[u][i]=min(f[u][i],f[u][i-1]);
	for(int i=1;i<=M;++i)g[u][i]=min(g[u][i],g[u][i-1]);
	for(int i=0;i<=M;++i)f[u][i]=max((int)f[u][i],c[u]-i);
	// printf("f[%d]:",u);for(int i=0;i<=M;++i)printf("%d ",(int)f[u][i]);putchar(10);
	// printf("g[%d]:",u);for(int i=0;i<=M;++i)printf("%lld ",g[u][i]);putchar(10);
}
int main()
{
	scanf("%d%d",&n,&M);
	for(int i=1;i<n;++i)
	{
		int u,v,w,k;scanf("%d%d%d%d",&u,&v,&w,&k);G[u].push_back({v,w,k});G[v].push_back({u,w,k});
	}
	c[1]=0;for(int i=2;i<=n;++i)scanf("%d",c+i);
	for(int i=1;i<=n;++i)for(int j=0;j<=M;++j)f[i][j]=M+1,g[i][j]=1e18;
	for(int i=0;i<=M;++i)nf[i]=M+1,ng[i]=1e18;
	dfs(1,0);
	for(int i=1;i<=M;++i)
	{
		ll ans=1e18;
		for(int j=0;j<=M;++j)if(j+f[1][j]<=i)ans=min(ans,g[1][j]);
		if(ans<1e18)printf("%lld\n",ans);
		else printf("-1\n");
	}
}

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 7916kb

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: 1ms
memory: 7864kb

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: 1ms
memory: 8064kb

input:

2 1
2 1 1 1
1

output:

1

result:

ok 1 number(s): "1"

Test #4:

score: -100
Wrong Answer
time: 1ms
memory: 7984kb

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
50

result:

wrong answer 50th numbers differ - expected: '-1', found: '50'