QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #756827 | #5141. Identical Parity | 0And1Story | WA | 12ms | 3832kb | C++20 | 776b | 2024-11-16 22:09:49 | 2024-11-16 22:09:49 |
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;
// }
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: 3832kb
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: 3768kb
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 Yes 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 Y...
result:
wrong answer expected NO, found YES [31st token]