QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#602563 | #8720. BFS 序 0 | frs# | WA | 57ms | 15284kb | C++14 | 1.2kb | 2024-10-01 10:46:54 | 2024-10-01 10:46:57 |
Judging History
answer
#include<iostream>
#include<cstdio>
#include<cstring>
#include<queue>
#include<vector>
using namespace std;
const int N = 3e5 + 5;
const int M = 5e5 + 5;
int n, qr, m, cnt[N], a[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);
for(int i = 1; i <= m; i++){
scanf("%d", &a[i]);
}
bool flag = 1;
for(int i = 2; i <= m; i++){
if(cnt[a[i]] < cnt[a[i - 1]]){
flag = 0;
break;
}
}
if(!flag) printf("No\n");
else printf("Yes\n");
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 2ms
memory: 11876kb
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: 57ms
memory: 15284kb
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:
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes ...
result:
wrong answer expected NO, found YES [1st token]