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  1. /*------- OPTIMIZE -------*/
  2. #pragma GCC optimize("Ofast")
  3. #pragma GCC optimize("O2")
  4.  
  5. /*------- INCLUDE -------*/
  6. #include<bits/stdc++.h>
  7.  
  8. /*------- MACROS -------*/
  9. #define int long long
  10. #define pb push_back
  11. #define fi first
  12. #define se second
  13. #define is insert
  14. #define _it ::iterator
  15. #define FOR(i,l,r,n) for((i)=(l);(i)<=(r);(i)+=(n))
  16. #define FOD(i,r,l,n) for((i)=(r);(i)>=(l);(i)-=(n))
  17. #define lowerbound(v,x) lower_bound((v).begin(),(v).end(),(x))
  18. #define upperbound(v,x) upper_bound((v).begin(),(v).end(),(x))
  19. #define all(v) (v).begin(),(v).end()
  20. using namespace std;
  21.  
  22. /*------- CONSTANT -------*/
  23. const double pi=3.141592653589;
  24. const int mod=1e9+7;
  25. const int llm=LONG_LONG_MAX;
  26.  
  27. /*--- SOLVING FUNCTIONS ---*/
  28. int f[1000001]={},uoc; vector<int> v;
  29. void sangnto(int n) //sang nguyen to, tao mang chi gom cac so nguyen to
  30. {
  31. 	int i,j;
  32. 	FOR(i,2,sqrt(n),1)
  33. 	{
  34. 		if (f[i]==0) {FOR(j,i,n/i,1) f[i*j]=1;}
  35. 	}
  36. 	v.pb(2);
  37. 	FOR(i,3,n,2) {if (f[i]==0) v.pb(i);}
  38. }
  39. void demuoc(int x) //dem uoc bang phan tich thua so nguyen to + mang nguyen to
  40. {	uoc=1;
  41. 	if (x==1) {cout<<1<<endl; return;}
  42. 	if (f[x]==0) {cout<<2<<endl; return;}
  43. 	int i,d,x1=x;
  44. 	FOR(i,0,v.size()-1,1)
  45. 	{	d=0;
  46. 		if (v[i]>sqrt(x1)||x==1) break;
  47. 		if (x%v[i]==0)
  48. 		{
  49. 			while (x%v[i]==0) {x=x/v[i]; d++;}
  50. 		}
  51. 		uoc=uoc*(d+1);
  52. 	}
  53. 	if (x!=1) uoc=uoc*2;
  54. 	cout<<uoc<<endl;
  55. }
  56. void run()
  57. {
  58. 	int n,x,i;
  59. 	cin>>n; sangnto(1000000);
  60. 	FOR(i,1,n,1)
  61. 	{
  62. 		cin>>x; demuoc(x);
  63. 	}
  64. }
  65.  
  66. /*--------- MAIN ---------*/
  67. signed main()
  68. {
  69.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  70. //   freopen(" .inp","r",stdin);
  71. //   freopen(" .out","w",stdout);
  72.  
  73.     run();
  74.     return 0;
  75. }
Success #stdin #stdout 0.01s 12040KB
comments (?)
stdin 
3
16
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18
stdout 
5
2
6
https://ideone.com/eteDZu
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
secret

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