QOJ.ac
QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#444158 | #8518. Roars III | ucup-team1004# | WA | 1ms | 8064kb | C++14 | 1.2kb | 2024-06-15 17:34:09 | 2024-06-15 17:34:11 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N=2e5+10;
struct edge{
int next,to;
}e[N<<1];
int first[N],len,siz[N],fa[N];
pair<int,int> mx[N];
long long f[N],ans[N];
char str[N];
void dfs1(int x)
{
siz[x]=(str[x]=='1');
for(int i=first[x],y;i;i=e[i].next)
if((y=e[i].to)!=fa[x])
{
fa[y]=x,dfs1(y);
siz[x]+=siz[y],f[x]+=f[y];
mx[x]=max(mx[x],{siz[y],y});
}
if(str[x]=='0') f[x]+=mx[x].first;
}
int n;
void add(int a,int b)
{
e[++len]=edge{first[a],b};
first[a]=len;
}
int gmax(int x,int ban)
{
int s=0;
for(int i=first[x],y;i;i=e[i].next)
if((y=e[i].to)!=fa[x]&&y!=ban) s=max(s,siz[y]);
return s;
}
void dfs2(int x,ll s)
{
for(int i=first[x];i;i=e[i].next)
if(e[i].to!=fa[x]) s+=f[e[i].to];
int res=siz[1]-siz[x],p=(str[x]=='0');
ans[x]=s+p*max(mx[x].first,res);
for(int i=first[x],y;i;i=e[i].next)
if((y=e[i].to)!=fa[x])
{
if(y!=mx[x].second) dfs2(y,s-f[y]+p*max(mx[x].first,res));
else dfs2(y,s-f[y]+p*max(gmax(x,y),res));
}
}
int main()
{
scanf("%d%s",&n,str+1);
for(int i=1,x,y;i<n;i++)
{
scanf("%d%d",&x,&y);
add(x,y),add(y,x);
}
dfs1(1);
dfs2(1,0);
for(int i=1;i<=n;i++) printf("%lld%c",ans[i]," \n"[i==n]);
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 5840kb
input:
5 10101 1 2 2 3 2 4 4 5
output:
2 2 2 3 3
result:
ok 5 number(s): "2 2 2 3 3"
Test #2:
score: 0
Accepted
time: 1ms
memory: 7808kb
input:
1 0
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 1ms
memory: 8044kb
input:
1 1
output:
0
result:
ok 1 number(s): "0"
Test #4:
score: 0
Accepted
time: 1ms
memory: 8064kb
input:
2 10 1 2
output:
0 1
result:
ok 2 number(s): "0 1"
Test #5:
score: 0
Accepted
time: 1ms
memory: 8028kb
input:
3 100 2 3 2 1
output:
0 1 2
result:
ok 3 number(s): "0 1 2"
Test #6:
score: 0
Accepted
time: 1ms
memory: 5980kb
input:
4 1100 4 1 4 3 4 2
output:
1 1 3 1
result:
ok 4 number(s): "1 1 3 1"
Test #7:
score: 0
Accepted
time: 0ms
memory: 3940kb
input:
5 10100 4 5 1 3 2 1 3 5
output:
0 2 0 4 2
result:
ok 5 number(s): "0 2 0 4 2"
Test #8:
score: -100
Wrong Answer
time: 0ms
memory: 3920kb
input:
8 11001000 4 2 7 2 5 7 6 2 3 1 6 3 7 8
output:
5 3 5 6 4 4 4 7
result:
wrong answer 4th numbers differ - expected: '5', found: '6'