QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#89867#5141. Identical Parityylf20010818WA 19ms3364kbC++17804b2023-03-21 17:33:302023-03-21 17:33:33

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-03-21 17:33:33]
  • 评测
  • 测评结果:WA
  • 用时:19ms
  • 内存:3364kb
  • [2023-03-21 17:33:30]
  • 提交

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==k) 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";
        }



    }
}

詳細信息

Test #1:

score: 100
Accepted
time: 2ms
memory: 3340kb

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: 19ms
memory: 3364kb

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 NO, found YES [125th token]