QOJ.ac
QOJ
| 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 |
|---|---|---|---|---|---|---|---|---|---|
| #755889 | #5141. Identical Parity | L_wwqq | WA | 9ms | 3648kb | C++20 | 923b | 2024-11-16 18:18:19 | 2024-11-16 18:18:19 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
#define i128 __int128
#define fi first
#define se second
#define all(a) begin(a)+1,end(a)
typedef unsigned long long ull;
using namespace std;
using pii = pair<int,int>;
using piii = pair<int,pii>;
const int N = 1e6+5;
int n,m,k;
inline void beez(){
cin >> n >> k;
if(n == 1 and k == 1){
cout << "Yes\n";
return;
}
if(n != 1 and k == 1){
cout << "No\n";
return;
}
if(k % 2 == 0){
cout << "Yes\n";
return;
} else{
if(n == k){
cout << "Yes\n";
return;
}
bool ok = true;
int a = n / k * k / 2 + n % k,b = n / k * (k + 1) / 2;
if(n & 1){
if(abs(a - b) != 1)ok = false;
} else{
if(a != b)ok = false;
}
if(ok) cout << "Yes\n";
else cout << "No\n";
}
}
signed main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);
int __=1;
cin>>__;
while(__--){
beez();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3644kb
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: 3648kb
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 No Yes Yes Yes Yes No Yes No Yes No Yes Yes Yes No Yes No Yes No Yes Yes Yes Yes No Yes No Yes No Yes No Yes Yes Yes No Yes No Yes No Yes No Yes Yes Yes Yes No Yes No Yes No Yes No Yes No Yes Yes Yes No Yes Yes Yes ...
result:
wrong answer expected YES, found NO [24th token]