QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #717159 | #5141. Identical Parity | MLK2 | WA | 9ms | 3640kb | C++14 | 1.2kb | 2024-11-06 17:05:16 | 2024-11-06 17:05:16 |
Judging History
answer
#include <bits/stdc++.h>
#define N (200000 + 10) /*------------------ #define ------------------*/
#define M (400000 + 10)
#define MOD (1000000000 + 7)
//#define MOD (998244353)
#define INF (0x3f3f3f3f)
#define LNF (3e18)
#define mod(a,b) (((a)%(b)+(b))%(b))
#define IOS ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
#define fi first
#define se second
using namespace std;
typedef long long LL;
typedef unsigned long long ULL;
typedef pair<int,int> PII;
typedef pair<LL,LL> PLL;
typedef pair<int,LL> PIL;
typedef pair<LL,int> PLI;
typedef pair<double,double> PDD;
auto solve(){
LL n,k;
cin >> n >> k;
if(k == n){
cout << "Yes\n";
}else{
if(k == 1){
if(n == 1) cout << "Yes\n";
else cout << "No\n";
}else{
LL s = (n + k - 1) / k,cnt = (n - n % s) / s;
//cout << s << ' ' << cnt << ' ' << (n % s) << "\n";
if(k % 2 == 0){
LL v = abs(cnt / 2 * s + n % s - (cnt + 1) / 2 * s);
cout << (v <= 1 ? "Yes\n" : "No\n");
}else{
LL t = (n % s);
if(t == 0) t = s;
cout << (abs(t) <= 1 ? "Yes\n" : "No\n");
}
}
}
}
signed main(){
IOS
int T = 1;
cin >> T;
while(T -- ) solve();
//while(T -- ) cout << (solve() ? "YES" : "NO") << '\n';
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3640kb
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: 3636kb
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 No No No Yes No Yes Yes Yes Yes Yes Yes No Yes No Yes No Yes No Yes No Yes No No Yes Yes Yes Yes Yes No Yes No No No No No No No Yes No Yes No Yes No Yes Yes Yes Yes Yes Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No No Yes Yes Y...
result:
wrong answer expected YES, found NO [9th token]