#pragma GCC optimize("O3", "inline")
#define skillissue <bits/stdc++.h>
#define ultra_mal std
#include skillissue
using namespace ultra_mal;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
#define ins insert
#define pb push_back
#define int long long int
#define pii pair<int, int>
#define endl '\n'
#define drop(x) cout<<(x)<<endl; return;
#define all(x) x.begin(),x.end()
#define hash FhashF
const int mod = 1e9 +7, sze = 1E3 +100, inf = LLONG_MAX, P = 1453;
// const int L = 30;
int prime(int aa){
if(aa<2){
return 0;
}
for(int i = 2;i*i<=aa;i++){
if(aa%i==0){
return 0;
}
}
return 1;
}
map<int,vector<int>> graph;
int x,y;
map<int,int> used;
void dfs(int node,vector<int> path){
path.pb(node);
used[node]=1;
if(node==y){
cout<<path.size()<<endl;
for(auto v:path){
cout<<v<<" ";
}
cout<<endl;
exit(0);
}
for(auto v:graph[node]){
if(!used[v]){
dfs(v,path);
}
}
}
void cave(){
cin>>x>>y;
vector<int> lst={x+2,x-2,y-2,y+2,x,y,2};
for(auto v:lst){
if(prime(v)){
for(auto xx:lst){
if(prime(xx)){
if(prime(abs(xx-v))){
graph[v].pb(xx);
}
}
}
}
}
vector<int> path;
dfs(x,path);
drop(-1);
}
signed main() {
cin.tie(0)->sync_with_stdio(0);
int tt = 1;
// cin>>tt;
while(tt--){
cave();
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
482 ms |
432 KB |
Output is correct |
2 |
Correct |
313 ms |
432 KB |
Output is correct |
3 |
Correct |
614 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
457 ms |
344 KB |
Output is correct |
2 |
Correct |
279 ms |
348 KB |
Output is correct |
3 |
Correct |
454 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
563 ms |
344 KB |
Output is correct |
2 |
Correct |
318 ms |
348 KB |
Output is correct |
3 |
Correct |
417 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
410 ms |
348 KB |
Output is correct |
2 |
Correct |
236 ms |
348 KB |
Output is correct |
3 |
Correct |
152 ms |
436 KB |
Output is correct |