QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #756815 | #5141. Identical Parity | 0And1Story | WA | 11ms | 3888kb | C++20 | 645b | 2024-11-16 22:03:41 | 2024-11-16 22:03:46 |
Judging History
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;
}
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: 3812kb
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: 3888kb
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 No Yes No Yes Yes Yes Yes No Yes Yes Yes No Yes No Yes Yes Yes Yes Yes Yes No Yes No Yes No Yes No Yes No Yes Yes Yes Yes Yes Yes Yes Yes No Yes No Yes Yes Yes No Yes No Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes No Yes No Yes No Yes No Yes No Yes No Y...
result:
wrong answer expected YES, found NO [9th token]