QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #602956 | #8720. BFS 序 0 | ITC_TL# | WA | 42ms | 28804kb | C++20 | 1.5kb | 2024-10-01 13:47:02 | 2024-10-01 13:47:47 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define ll long long int
#define fore(i, l, r) for (register int i = (int)l; i <= (int)r; i++)
#define ford(i, r, l) for (register int i = (int)r; i >= (int)l; i--)
const int MAXN = 2123456LL;
ll T, n, a[MAXN], fa[MAXN];
ll to[MAXN], nxt[MAXN], hand[MAXN], tot;
ll num[MAXN], b[MAXN];
ll mp[MAXN];
void add(ll x, ll y)
{
tot++;
to[tot] = y;
nxt[tot] = hand[x];
hand[x] = tot;
return;
}
void sou(ll t)
{
for (register int i = hand[t]; i; i = nxt[i])
{
num[to[i]] = num[t] + 1;
sou(to[i]);
}
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(0);
cin >> n;
fore(i, 2, n)
{
cin >> fa[i];
add(fa[i], i);
}
num[1] = 1;
sou(1);
ll q;
cin >> q;
ll m;
while (q--)
{
cin >> m;
bool p = 1;
fore(i, 1, m)
{
cin >> b[i];
mp[b[i]]++;
if (mp[b[i]] >= 2)
p = 0;
}
fore(i, 1, m) mp[b[i]] = 0, b[i] = num[b[i]];
fore(i, 2, m)
{
if (b[i] < b[i - 1])
p = 0;
}
if (p)
{
cout << "Yes" << endl;
}
else
{
cout << "No" << endl;
}
}
return 0;
}
/*
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
*/
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 13864kb
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: 42ms
memory: 28804kb
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]