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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
#481597#5141. Identical Parity333zhanWA 5ms3804kbC++201.3kb2024-07-17 11:04:282024-07-17 11:04:28

Judging History

你现在查看的是最新测评结果

  • [2024-07-17 11:04:28]
  • 评测
  • 测评结果:WA
  • 用时:5ms
  • 内存:3804kb
  • [2024-07-17 11:04:28]
  • 提交

answer

#include <bits/stdc++.h>
#define int long long

using namespace std;

inline int read () {
    int w = 1, s = 0; char ch = getchar ();
    for (; ! isdigit (ch); ch = getchar ()) if (ch == '-') w = -1;
    for (; isdigit (ch); ch = getchar ()) s = (s << 1) + (s << 3) + (ch ^ 48);
    return s * w;
}

void solve () {
	int n = read (), k = read ();

    if (n == 1) {
        printf ("Yes\n");
        return;
    }

    if (k == 1) {
        printf ("No\n");
        return;
    }

    if (k & 1 ^ 1) {
        printf ("Yes\n");
        return;
    }

    int t = n / k;
    int sum1 = (n + 1) / 2, sum2 = n - sum1;

    int a = t, b = 2 * t;

    int w = n % k;

    if (w > k / 2) {
        a += k / 2;
        b += w - k / 2;
    } else {
        a += w;
    }

    if (sum1 < b || sum2 < a) {
        printf ("No\n");
        return;
    }
    printf ("Yes\n");
} 

signed main () {
	// ios::sync_with_stdio (false);
    // cin.tie (nullptr);
    
	int T = 1; 
	// cin >> T;
	T = read ();

	while (T --) {
		solve ();
	}
	
	return 0;
}
/*
4 3
1 2 3 4
2 1 3 4

6 3
2 1 3 4 5 6
x
y

n / k


9 3
1 1 0 1 1 0 1 1 0
0 1 1 0 1 1 0 1 1

0 0 1 0 1 0 1 0 1

9 5
0 0 1 1 1 0 0 1 1 

7 3
2 1 3 4 5 7 6
0 1 1 0 1 1 0   

8 5
0 0 1 1 1 0 0 1
*/

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3716kb

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: 5ms
memory: 3804kb

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
Yes
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
Ye...

result:

wrong answer expected NO, found YES [50th token]