QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#227528 | #2569. Kill All Termites | JooDdae | WA | 1ms | 6028kb | C++20 | 462b | 2023-10-27 17:28:13 | 2023-10-27 17:28:13 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int n;
vector<int> v[100100];
int ans;
int dfs(int u) {
if(v[u].empty()) return 1;
int re = 0;
for(auto x : v[u]) re += dfs(x);
if(re > 1) ans++, re = 0;
return re;
}
int main() {
cin.tie(0)->sync_with_stdio(0);
cin >> n;
for(int i=2;i<=n;i++) {
int p; cin >> p;
v[p].push_back(i);
}
cout << ans + dfs(1);
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 5964kb
input:
1
output:
1
result:
ok 1 number(s): "1"
Test #2:
score: 0
Accepted
time: 0ms
memory: 5972kb
input:
2 1
output:
1
result:
ok 1 number(s): "1"
Test #3:
score: 0
Accepted
time: 1ms
memory: 5892kb
input:
8 1 1 2 1 2 3 2
output:
2
result:
ok 1 number(s): "2"
Test #4:
score: 0
Accepted
time: 0ms
memory: 5956kb
input:
3 1 1
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 1ms
memory: 6028kb
input:
4 1 1 1
output:
1
result:
ok 1 number(s): "1"
Test #6:
score: 0
Accepted
time: 1ms
memory: 5952kb
input:
5 1 1 1 1
output:
1
result:
ok 1 number(s): "1"
Test #7:
score: -100
Wrong Answer
time: 1ms
memory: 5984kb
input:
6 1 2 2 2 1
output:
2
result:
wrong answer 1st numbers differ - expected: '1', found: '2'