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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#190758#5141. Identical ParitychroneZWA 9ms3580kbC++17952b2023-09-29 13:54:112023-09-29 13:54:12

Judging History

你现在查看的是最新测评结果

  • [2023-09-29 13:54:12]
  • 评测
  • 测评结果:WA
  • 用时:9ms
  • 内存:3580kb
  • [2023-09-29 13:54:11]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
using i64 = long long;

#define int long long

constexpr int inf = 1e9;

void solve() {
	int n, k; cin >> n >> k;
	if(k == 1) {
		cout << (n == 1 ? "Yes" : "No") << "\n";
		return;
	}
	if(k % 2 == 0) {
		cout << "Yes\n";
		return;
	}
	int x1 = ((n + 1) / 2) % (n / k);
	int x2 = (n / 2) % (n / k);
	if(x1 + x2 > n % k) {
		cout << "No\n";
		return;
	}
	if((n % k - (x1 + x2)) % (n / k) != 0) {
		cout << "No\n";
	}
	int c1 = (n + 1) / 2 - x1 - x1 * (n / k);
	int c2 = n / 2 - x2 - x2 * (n / k);
	i64 D = 1ll * (n / k + 1) * (n / k);
	if(c1 / D + c2 / D >= (n % k - (x1 + x2)) / (n / k)) {
		cout << "Yes\n";
	} else {
		cout << "No\n";
	}
}

signed main() {
	ios::sync_with_stdio(false); 
	cin.tie(nullptr); cout.tie(nullptr);
	
	int T; cin >> T;
	while(T--) {
		solve();
	}
}
/*
Author: chroneZ
Start thinking at 
Start coding at 
Finish debugging at 
*/

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3576kb

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: 9ms
memory: 3580kb

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

result:

wrong answer expected NO, found YES [58th token]