QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #89865 | #5141. Identical Parity | ylf20010818 | WA | 20ms | 3508kb | C++17 | 804b | 2023-03-21 17:31:11 | 2023-03-21 17:31:12 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll t,n,k;
int main()
{
ios::sync_with_stdio(false);
cin.tie(0),cout.tie(0);
cin>>t;
while(t--)
{
cin>>n>>k;
if(n%k==0)
{
if(k%2==0||n==1) cout<<"YES\n";
else cout<<"NO\n";
}
else
{
ll m=n/2;
ll val1=n/k+1,val2=n/k;
ll num1=n%k,num2=k-n%k;
ll num=min(num1,m/val1);
m-=num*val1;
ll kk=m/val2;
m-=kk*val2;
num2-=kk;
if(m!=0)
{
num2--;
num2-=(val2-m);
}
if(num2>=0) cout<<"YES\n";
else cout<<"NO\n";
}
}
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 3508kb
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: 20ms
memory: 3316kb
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 NO NO YES YES YES NO YES YES YES NO NO YES NO YES YES YES NO YES YES YES YES YES NO NO YES NO YES YES YES YES YES NO YES NO YES YES YES YES YES NO NO YES NO YES NO YES YES YES YES YES NO YES NO YES YES YES YES YES YES YES NO NO YES NO YES YES YES YES YES YES YES YES YES NO YES NO Y...
result:
wrong answer expected YES, found NO [6th token]