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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#756826#5141. Identical Parity0And1StoryWA 12ms3828kbC++20764b2024-11-16 22:08:012024-11-16 22:08:02

Judging History

你现在查看的是最新测评结果

  • [2024-11-16 22:08:02]
  • 评测
  • 测评结果:WA
  • 用时:12ms
  • 内存:3828kb
  • [2024-11-16 22:08:01]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

#define rep(i, l, r) for (int i = l; i <= r; ++i)
#define rrep(i, l, r) for (int i = r; i >= l; --i)

void work() {
    int n, k;
    scanf("%d%d", &n, &k);
    if (k % 2 == 0) {
        printf("Yes\n");
        return;
    }
    if (k == 1 && n != 1) {
        printf("No\n");
        return;
    }
    if (n % k == 0) {
        printf("Yes\n");
        return;
    }
    if (n % 2 == 0) printf("%s\n", n / k <= min(n % k * 2, k / 2 * 2) && n / k % 2 == n % k % 2 ? "Yes" : "No");
    else printf("%s\n", n / k - 1 <= min(n % k * 2, k / 2 * 2) && (n / k - 1) % 2 == n % k % 2 ? "Yes" : "No");
}

int main() {
    int T = 1;
    scanf("%d", &T);
    while (T--) work();
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3828kb

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: 3824kb

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

result:

wrong answer expected NO, found YES [18th token]