QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #672034 | #5141. Identical Parity | Repeater# | WA | 11ms | 3588kb | C++20 | 709b | 2024-10-24 15:24:47 | 2024-10-24 15:24:48 |
Judging History
answer
#include <bits/stdc++.h>
void solve()
{
int n, k; std::cin >> n >> k;
if(k % 2 == 0)
{
std::cout << "Yes\n";
return;
}
if(k > n / 2)
{
std::cout << "Yes\n";
return;
}
int a = k / 2;
std::vector<int> can;
can.emplace_back(k);
can.emplace_back(a * (a + 1) * 2);
can.emplace_back(a * (a + 1) * 2 - 1);
can.emplace_back(a * (a + 1) * 2 + 1);
can.emplace_back(a * (a + 2) + (a + 1) * (a + 1));
can.emplace_back(k + a);
for(auto i : can) if(i == n)
{
std::cout << "Yes\n";
return;
}
std::cout << "No\n";
}
int main()
{
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int t; std::cin >> t;
while(t--) solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3588kb
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: 3528kb
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 No Yes Yes Yes Yes Yes Yes Yes Yes No Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes...
result:
wrong answer expected YES, found NO [112th token]