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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
#728218#4589. White-Black TreeMeatInTheMiddle#WA 1ms6860kbC++171.2kb2024-11-09 14:48:082024-11-09 14:48:08

Judging History

你现在查看的是最新测评结果

  • [2024-11-09 14:48:08]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:6860kb
  • [2024-11-09 14:48:08]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define fastio (ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL))
typedef long long ll;
typedef long double lld;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
const int MAXSIZE = 2000000;
const long long INF = 1e18 + 5;
const double EPSILON = 1e-14;
const ll DIV = 2000003;
const long double pi = 3.14159265358979323846264338327950288419716939937510L;

int n;
int tg[101001];
int cnt[101010];
vector<int> adj[101010];

int dfs(int cur)
{

    int ret = 0;
    cnt[cur] = 1;
    for (int nxt : adj[cur])
    {
        ret ^= dfs(nxt);
        cnt[cur] += cnt[nxt];
    }
    if (tg[cur])
        ret ^= cnt[cur];
    return ret;
}

int dfs2(int cur)
{
    if (tg[cur])
        return cnt[cur];
    int ret = 0;
    for (int nxt : adj[cur])
    {
        ret ^= dfs2(nxt);
    }
    return ret;
}

int main()
{
    fastio;
    cin >> n;
    for (int i = 2; i <= n; i++)
    {
        int a;
        cin >> a;
        adj[a].push_back(i);
    }
    for (int i = 1; i <= n; i++)
        cin >> tg[i];

    int t = dfs(1);
    t = dfs2(1);
    if (t)
        cout << "First";
    else
        cout << "Second";
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 5960kb

input:

7
1 1 1 3 3 3
0 1 1 0 0 0 1

output:

First

result:

ok single line: 'First'

Test #2:

score: 0
Accepted
time: 1ms
memory: 6800kb

input:

5
1 1 2 3
0 1 1 0 0

output:

Second

result:

ok single line: 'Second'

Test #3:

score: 0
Accepted
time: 1ms
memory: 6080kb

input:

4
1 1 1
1 1 0 1

output:

First

result:

ok single line: 'First'

Test #4:

score: 0
Accepted
time: 0ms
memory: 5952kb

input:

2
1
0 0

output:

Second

result:

ok single line: 'Second'

Test #5:

score: 0
Accepted
time: 0ms
memory: 6668kb

input:

3
1 2
0 1 1

output:

First

result:

ok single line: 'First'

Test #6:

score: 0
Accepted
time: 1ms
memory: 6668kb

input:

3
1 2
1 1 1

output:

First

result:

ok single line: 'First'

Test #7:

score: 0
Accepted
time: 1ms
memory: 6016kb

input:

3
1 1
1 1 1

output:

First

result:

ok single line: 'First'

Test #8:

score: 0
Accepted
time: 1ms
memory: 5964kb

input:

3
1 1
0 1 0

output:

First

result:

ok single line: 'First'

Test #9:

score: 0
Accepted
time: 0ms
memory: 6196kb

input:

3
1 1
0 1 1

output:

Second

result:

ok single line: 'Second'

Test #10:

score: 0
Accepted
time: 0ms
memory: 5960kb

input:

4
1 1 2
0 1 1 0

output:

First

result:

ok single line: 'First'

Test #11:

score: 0
Accepted
time: 0ms
memory: 6028kb

input:

4
1 1 1
0 1 1 1

output:

First

result:

ok single line: 'First'

Test #12:

score: 0
Accepted
time: 1ms
memory: 5956kb

input:

4
1 2 3
0 1 0 1

output:

First

result:

ok single line: 'First'

Test #13:

score: 0
Accepted
time: 1ms
memory: 6500kb

input:

5
1 1 2 2
0 1 1 1 1

output:

First

result:

ok single line: 'First'

Test #14:

score: 0
Accepted
time: 1ms
memory: 6256kb

input:

5
1 1 2 2
0 0 1 0 1

output:

Second

result:

ok single line: 'Second'

Test #15:

score: 0
Accepted
time: 1ms
memory: 6016kb

input:

2
1
1 0

output:

First

result:

ok single line: 'First'

Test #16:

score: 0
Accepted
time: 1ms
memory: 6088kb

input:

5
1 1 2 2
0 1 1 0 0

output:

First

result:

ok single line: 'First'

Test #17:

score: 0
Accepted
time: 0ms
memory: 6076kb

input:

5
1 1 1 2
0 1 1 1 1

output:

First

result:

ok single line: 'First'

Test #18:

score: 0
Accepted
time: 1ms
memory: 6708kb

input:

5
1 1 1 2
0 1 1 1 1

output:

First

result:

ok single line: 'First'

Test #19:

score: 0
Accepted
time: 1ms
memory: 5968kb

input:

5
1 1 2 3
0 1 1 1 1

output:

Second

result:

ok single line: 'Second'

Test #20:

score: -100
Wrong Answer
time: 1ms
memory: 6860kb

input:

5
1 1 2 3
0 1 1 1 0

output:

Second

result:

wrong answer 1st lines differ - expected: 'First', found: 'Second'