QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #340113 | #1807. Distribute the Bars | HKOI0# | WA | 1ms | 3732kb | C++20 | 456b | 2024-02-28 15:17:42 | 2024-02-28 15:17:43 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
void solve() {
int n;
cin>>n;
if(n>=4&&n%2==0) {
cout<<n/2<<'\n';
for(int i=1;i<=n/2;i++) cout<<2<<' '<<i*2-1<<' '<<n*2-i*2+1<<'\n';
}
else cout<<-1<<'\n';
}
int32_t main() {
#ifndef LOCAL
ios::sync_with_stdio(false);
cin.tie(nullptr);
#endif
int T = 1;
// cin >> T;
while (T--) solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3688kb
input:
4
output:
2 2 1 7 2 3 5
result:
ok OK (2 groups)
Test #2:
score: 0
Accepted
time: 0ms
memory: 3732kb
input:
2
output:
-1
result:
ok OK (impossible)
Test #3:
score: 0
Accepted
time: 0ms
memory: 3660kb
input:
3
output:
-1
result:
ok OK (impossible)
Test #4:
score: -100
Wrong Answer
time: 0ms
memory: 3580kb
input:
1659
output:
-1
result:
wrong answer Jury found the solution, contestant isn't