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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
#602621	#8720. BFS 序 0	frs^#	WA	55ms	21288kb	C++14	1.5kb	2024-10-01 11:17:57	2024-10-01 11:17:57

Judging History

你现在查看的是最新测评结果

[2024-10-01 11:17:57]
评测

测评结果：WA
用时：55ms
内存：21288kb

查看

[2024-10-01 11:17:57]
提交

answer

#include<iostream>
#include<cstdio>
#include<cstring>
#include<queue>
#include<vector>
using namespace std;
const int N = 5e5 + 5;

int n, qr, m, cnt[N], a[N];
bool f[N];
vector<int> ve[N];

struct qnode{
    int id, d;
    qnode(int id1 = 0, int d1 = 0){
        id = id1;
        d = d1;
    }
}tp;
queue<qnode> q;

int main(){
    scanf("%d", &n);
    int u;
    for(int i = 2; i <= n; i++){
        scanf("%d", &u);
        ve[u].push_back(i);
    }
    q.push(qnode(1, 1));
    while(!q.empty()){
        tp = q.front();
        q.pop();
        cnt[tp.id] = tp.d;
        int sz = ve[tp.id].size();
        for(int i = 0; i < sz; i++){
            q.push(qnode(ve[tp.id][i], tp.d + 1));
        }
    }
    scanf("%d", &qr);
    while(qr--){
        scanf("%d", &m);
        bool flag = 1;
        for(int i = 1; i <= m; i++){
            scanf("%d", &a[i]);
            f[a[i]] = 0;
            if(a[i] < 1 || a[i] > n){
                flag = 0;
            }
        }
        f[a[1]] = 1;
        for(int i = 2; i <= m; i++){
            if(flag == 0) break;
            if(cnt[a[i]] < cnt[a[i - 1]]){
                flag = 0;
                break;
            }
            if(f[a[i]]){
                flag = 0;
                break;
            }
            f[a[i]] = 1;
        }
        if(!flag) printf("No\n");
        else printf("Yes\n");
    }
    return 0;
}



/*

6
1 1 3 2 4
10
4 3 6 2 5
1 4
3 4 4 5
5 2 5 4 6 3
3 1 4 2
3 5 6 3
5 4 5 2 6 1
4 4 3 2 5
4 4 6 2 3
3 3 2 6

*/

源文件, 语言: C++14

详细

Test #1:

score: 100

Accepted

time: 0ms

memory: 18716kb

input:

6
1 1 3 2 4
10
4 3 6 2 5
1 4
3 2 4 5
5 2 5 4 6 3
3 1 4 2
3 5 6 3
5 4 5 2 6 1
4 4 3 2 5
4 4 6 2 3
3 3 2 6

output:

No
Yes
Yes
No
No
No
No
No
No
Yes

result:

ok 10 token(s): yes count is 3, no count is 7

Test #2:

score: -100

Wrong Answer

time: 55ms

memory: 21288kb

input:

300000
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 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 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...

output:

No
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
No
Yes
No
Yes
Yes
Yes
No
No
No
No
Yes
No
No
Yes
No
No
No
No
Yes
Yes
Yes
No
No
Yes
No
No
No
No
No
No
No
Yes
No
Yes
No
Yes
No
No
No
No
Yes
Yes
Yes
No
No
Yes
No
No
No
No
No
Yes
Yes
No
No
No
No
No
Yes
Yes
No
Yes
No
No
No
Yes
No
No
Yes
No
No
Yes
Yes
Yes
Yes
No
No
...

result:

wrong answer expected NO, found YES [87th token]