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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#756711#5141. Identical ParitySkyEyeControllerWA 12ms3680kbC++231.1kb2024-11-16 21:40:162024-11-16 21:40:17

Judging History

你现在查看的是最新测评结果

  • [2024-11-16 21:40:17]
  • 评测
  • 测评结果:WA
  • 用时:12ms
  • 内存:3680kb
  • [2024-11-16 21:40:16]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
const i64 mod = 998244353;
#define endl '\n'
void exgcd(int a, int b, int &x, int &y)
{
    if (b == 0)
    {
        x = 1, y = 0;
        return;
    }
    exgcd(b, a % b, y, x);
    y -= a / b * x;
    return;
}
void solve()
{
    int n, k;
    cin >> n >> k;
    int big = n % k, sml = k - big;
    int x, y;
    exgcd(n / k, n / k + 1, x, y);
    int ks = k;
    x *= ks, y *= ks;
    int tmpkx = (n / k + 1), tmpky = (n / k);
    x = (x % tmpkx + tmpkx) % tmpkx;
    y = (n / 2 - x * (n / k)) / (n / k + 1);
    if (x >= 0 && x <= sml && y >= 0 && y <= big)
    {
        cout << "Yes" << endl;
        return;
    }
    y = (y % tmpky + tmpky) % tmpky;
    x = (n / 2 - y * (n / k + 1)) / (n / k);
    if (x >= 0 && x <= sml && y >= 0 && y <= big)
    {
        cout << "Yes" << endl;
        return;
    }
    cout << "No" << endl;
}

signed main()
{
    ios::sync_with_stdio(0);
    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: 0ms
memory: 3656kb

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: 12ms
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:

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
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Ye...

result:

wrong answer expected YES, found NO [30th token]