QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #610101 | #5141. Identical Parity | zake | WA | 6ms | 3704kb | C++17 | 618b | 2024-10-04 14:55:43 | 2024-10-04 14:55:44 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define int long long
void solve()
{
int n,k;
cin>>n>>k;
if(n==1)
{
cout<<"Yes\n";
return;
}
if(k==1)
{
cout<<"No\n";
return;
}
if(k%2==0)
{
cout<<"Yes\n";
return;
}
if(2*k>n)
{
cout<<"Yes\n";
return;
}
if(n==2*k+1)
{
cout<<"Yes\n";
return;
}
int x=n/k,y=n%k;
if(n%2==0&&(x+1)*y==x*(k-y)||n%2==1&&(x+1)*(y-1)==x*(k-y+1))
{
cout<<"Yes\n";
return;
}
cout<<"No\n";
}
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int t=1;
cin>>t;
while(t--) solve();
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3704kb
input:
3 3 1 4 2 5 3
output:
No Yes Yes
result:
ok 3 token(s): yes count is 2, no count is 1
Test #2:
score: -100
Wrong Answer
time: 6ms
memory: 3692kb
input:
100000 1 1 2 1 2 2 3 1 3 2 3 3 4 1 4 2 4 3 4 4 5 1 5 2 5 3 5 4 5 5 6 1 6 2 6 3 6 4 6 5 6 6 7 1 7 2 7 3 7 4 7 5 7 6 7 7 8 1 8 2 8 3 8 4 8 5 8 6 8 7 8 8 9 1 9 2 9 3 9 4 9 5 9 6 9 7 9 8 9 9 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 10 10 11 1 11 2 11 3 11 4 11 5 11 6 11 7 11 8 11 9 11 10 11 11 12 1 ...
output:
Yes No Yes No Yes Yes No Yes Yes Yes No Yes Yes Yes Yes No Yes No Yes Yes Yes No Yes Yes Yes Yes Yes Yes No Yes No Yes Yes Yes Yes Yes No Yes No Yes Yes Yes Yes Yes Yes No Yes No Yes No Yes Yes Yes Yes Yes No Yes No Yes Yes Yes Yes Yes Yes Yes Yes No Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes...
result:
wrong answer expected YES, found NO [127th token]