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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#65373	#4589. White-Black Tree	T3alaadl3k2olyehymn3k	WA	5ms	8664kb	C++20	761b	2022-11-29 23:39:48	2022-11-29 23:39:50

Judging History

你现在查看的是最新测评结果

[2023-08-10 23:21:45]
System Update: QOJ starts to keep a history of the judgings of all the submissions.

[2022-11-29 23:39:50]
评测

测评结果：WA
用时：5ms
内存：8664kb

查看

[2022-11-29 23:39:48]
提交

answer

#include <bits/stdc++.h>

using namespace std;
const int N = 2e5 + 69;
vector<int> G[N];
int h[N], col[N];
map<int, vector<int>> a;

void dfs(int root, int par) {
    h[root] = h[par] + 1;
    if (col[root]) {
        a[h[root]].push_back(col[root]);
    }
    for (auto i: G[root]) {
        if (i == par)continue;
        dfs(i, root);
    }
}

signed main() {
    int n;
    cin >> n;
    for (int i = 2; i <= n; i++) {
        int u;
        cin >> u;
        G[u].push_back(i);
        G[i].push_back(u);
    }
    for (int i = 1; i <= n; i++) {
        cin >> col[i];
    }
    dfs(1, 0);
    bool flag = 0;
    for (auto i: a)
        flag |= (i.second.size() % 2);
    cout << (flag ? "First" : "Second") << endl;
}

Source code, Language: C++20

Details

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Test #1:

score: 100

Accepted

time: 1ms

memory: 8208kb

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: 8020kb

input:

5
1 1 2 3
0 1 1 0 0

output:

Second

result:

ok single line: 'Second'

Test #3:

score: 0

Accepted

time: 5ms

memory: 8276kb

input:

4
1 1 1
1 1 0 1

output:

First

result:

ok single line: 'First'

Test #4:

score: 0

Accepted

time: 2ms

memory: 8664kb

input:

2
1
0 0

output:

Second

result:

ok single line: 'Second'

Test #5:

score: 0

Accepted

time: 2ms

memory: 8024kb

input:

3
1 2
0 1 1

output:

First

result:

ok single line: 'First'

Test #6:

score: 0

Accepted

time: 2ms

memory: 8056kb

input:

3
1 2
1 1 1

output:

First

result:

ok single line: 'First'

Test #7:

score: 0

Accepted

time: 3ms

memory: 7972kb

input:

3
1 1
1 1 1

output:

First

result:

ok single line: 'First'

Test #8:

score: 0

Accepted

time: 2ms

memory: 8204kb

input:

3
1 1
0 1 0

output:

First

result:

ok single line: 'First'

Test #9:

score: 0

Accepted

time: 3ms

memory: 8040kb

input:

3
1 1
0 1 1

output:

Second

result:

ok single line: 'Second'

Test #10:

score: -100

Wrong Answer

time: 5ms

memory: 8104kb

input:

4
1 1 2
0 1 1 0

output:

Second

result:

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