QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #707559 | #5141. Identical Parity | Rosmontis_L# | WA | 9ms | 3700kb | C++20 | 723b | 2024-11-03 16:35:10 | 2024-11-03 16:35:10 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> PLL;
void solve(){
ll n, k;
cin >> n >> k;
if(k == 1){
if(n == 1) cout << "Yes\n";
else cout << "No\n";
return;
}
if(k % 2 == 0){
cout << "Yes\n";
return;
}
if(k < n / 2){
cout << "No\n";
return;
}
ll fst = 0;
if(n % 2 == 0 && ((n / 2) & 1)) fst = (n / 2 + 1);
else fst = n / 2;
if(k >= fst) cout << "Yes\n";
else cout << "No\n";
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int t = 1;
cin >> t;
while(t --){
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3672kb
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: 9ms
memory: 3700kb
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 No Yes Yes Yes Yes Yes Yes Yes No Yes ...
result:
wrong answer expected YES, found NO [71st token]