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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. typedef long long int ll;
  5. #define fo(i, start, end) for (ll i = start; i <= end; i++)
  6. #define pfo(i, end, start) for (ll i = end; i >= start; i--)
  7. #define all(x) x.begin(), x.end()
  8. #define sz(x) (ll)x.size()
  9. #define pb push_back
  10. #define mp make_pair
  11. #define fi first
  12. #define se second
  13. #define sortall(v) sort(all(v))
  14. #define sumv(v) accumulate(all(v), 0LL)
  15.  
  16. const int MAXN = 300000+5;
  17.  
  18. vector<int> g[MAXN + 1];
  19.  
  20. int main() {
  21.     ios::sync_with_stdio(false);
  22.     cin.tie(NULL);
  23.  
  24.  
  25.     fo(i, 1, MAXN) {
  26.         for (int j = i; j <= MAXN; j += i) {
  27.             g[j].pb(i);
  28.         }
  29.     }
  30.  
  31.     ll t;
  32.     cin>>t;
  33.     while(t--){
  34.     	ll n;
  35.     	cin>>n; unordered_map <ll,ll> p;
  36.     	fo(i,1,n){
  37.     		ll g;cin>>g; p[g]++;
  38.     	}
  39.     	vector <ll> dp(n+1,-1);
  40.     	if(p[1]>=1){
  41.     		dp[1] = 1;
  42.     	}
  43.     	fo(i,2,n){ll v = 1e18;
  44.     		for(auto u : g[i]){
  45.     			ll p1 = i/u;
  46.     			// if(i==4){
  47.     				// cout<<p1<<" "<<u<<"\n";
  48.     			// }
  49.     			if(dp[p1]!=-1 && dp[u]!=-1){
  50.     				v = min(v,dp[p1]+dp[u]);
  51.     			}
  52.     		}
  53.  
  54.     		if(v!=1e18){
  55.     			dp[i] = v;
  56.     		}
  57.  
  58.     		if(p[i]>=1){
  59.     			dp[i] = 1;
  60.     		}	
  61.     	}
  62.  
  63.     	fo(i,1,n){
  64.     		cout<<dp[i]<<" ";
  65.     	}
  66.  
  67.     	cout<<"\n";
  68.     }
  69.  
  70.  
  71.  
  72.  
  73.     return 0;
  74. }
  75.  
Success #stdin #stdout 0.25s 36180KB
comments (?)
stdin 
6
8
3 2 2 3 7 3 6 7
5
1 2 3 4 5
3
1 1 1
10
2 1 2 1 3 5 5 7 7 7
4
1 1 2 2
1
1
stdout 
-1 1 1 2 -1 1 1 3 
1 1 1 1 1 
1 -1 -1 
1 1 1 2 1 2 1 3 2 2 
1 1 -1 2 
1
https://ideone.com/DqmAgN
language:
C++14 (gcc 8.3)
created:
20 days ago
visibility:
secret

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