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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
#418125#5141. Identical ParityTolretWA 11ms3680kbC++201.3kb2024-05-23 10:55:112024-05-23 10:55:15

Judging History

你现在查看的是最新测评结果

  • [2024-05-23 10:55:15]
  • 评测
  • 测评结果:WA
  • 用时:11ms
  • 内存:3680kb
  • [2024-05-23 10:55:11]
  • 提交

answer

#include<bits/stdc++.h>
#define int long long int
#define pb push_back
#define pii pair<int,int>
#define fi first
#define se second
using namespace std;
const int maxn=1e6+5;
const int inf=1e18;
int tt=1;
int exgcd(int a,int b,int &x,int &y)
{
    if(b==0){
        x=1,y=0;return a;
    }
    int d=exgcd(b,a%b,x,y);
    int z=x;x=y;y=z-y*(a/b);
    return d;
}
int n,k;
void solve()
{
    cin>>n>>k;
    int a=(n/k+1),b=n/k,x0,y0;
    int d=exgcd(a,b,x0,y0);
    int r=(n+1)/2;
    if(n%k==0&&k%2==0)
    {
        cout<<"Yes"<<'\n';return ;
    }
    else if(n%k==0)
    {
        cout<<"No"<<'\n';return ;
    }

    if(r%d)
    {
        cout<<"No"<<'\n';return ;
    }
    x0*=(n+1)/2/d;
    y0*=(n+1)/2/d;
    x0%=(n/k);
    int minn=((n+1)/2 -(n/k)*(k-n%k))/(n/k+1);
    while(x0<=0)
    {
        x0+=n/k;
    }
    x0+=minn/(n/k) *(n/k);
    while(x0-(n/k)<minn)
    {
        x0+=n/k;
    }
    while(x0-(n/k)>=minn)
    {
        x0-=n/k;
    }
    x0+=n/k;
    if(x0<=n%k)
    {
        cout<<"Yes"<<'\n';
    }
    else
    {
        cout<<"No"<<'\n';
    }

}
signed main()
{
	ios::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
    cout<<fixed<<setprecision(10);
    cin>>tt;
    for(int i=1;i<=tt;i++)
    solve();
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3616kb

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: 11ms
memory: 3680kb

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:

No
No
Yes
No
Yes
No
No
Yes
Yes
Yes
No
No
Yes
Yes
No
No
Yes
No
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
No
No
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
...

result:

wrong answer expected YES, found NO [1st token]