#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=2e5+5;
const ld pi=3.14159265359;
const ll INF=(1LL<<60);
#define SQ(i) ((i)*(i))
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(_a) (ll)_a.size()
bool ck(ll k){
if(k<=1)return 0;
for(ll i=2;i*i<=k;i++)if(k%i==0)return 0;
return 1;
}
vector<ll> v,p;
ll a,b,vis[N];
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);
cin>>a>>b;
for(ll i=2;i<N;i++){
if(vis[i])continue;
p.pb(i);
REP(j,SZ(p)){
if(p[j]*i<N)vis[p[j]*i]=1;
if(i%p[j]==0)break;
}
}
if(ck(abs(a-b))){cout<<"2\n"<<a<<" "<<b<<"\n";return 0;}
for(auto i:p)v.pb(i),v.pb(a-i),v.pb(a+i),v.pb(b-i),v.pb(b+i);
sort(v.begin(),v.end());
v.resize(unique(v.begin(),v.end())-v.begin());
for(ll i:v){
if(ck(i)&&ck(abs(a-i))&&ck(abs(b-i))){
cout<<"3\n"<<a<<" "<<i<<" "<<b<<"\n";return 0;
}
}
cout<<"-1\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2043 ms |
2596 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2078 ms |
3448 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2043 ms |
2672 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2086 ms |
3188 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2005 ms |
3092 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2079 ms |
3320 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2087 ms |
2680 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2083 ms |
2680 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2062 ms |
2764 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2066 ms |
2724 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |