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  1. #include <iostream>
  2. #include <bits/stdc++.h>
  3.  
  4. #define fast ios_base::sync_with_stdio(false);cin.tie(nullptr);
  5. using namespace std;
  6. #define ll long long
  7.  
  8. bool isSet(int mask , int bit)
  9. {
  10. //    return mask & (1<<bit);
  11.     return (mask>>bit) & 1;
  12. }
  13.  
  14. int turnOn(int mask , int bit)
  15. {
  16.     return mask | (1<<bit);
  17. }
  18.  
  19. int turnoff(int mask , int bit)
  20. {
  21.     return mask & (~(1<<bit));
  22. }
  23.  
  24.  
  25. int turnoff2(int mask , int bit)
  26. {
  27.     return mask & (-1^(1<<bit));
  28. }
  29.  
  30.  
  31. int toggle(int mask , int bit)
  32. {
  33.     return mask ^ (1<<bit);
  34. }
  35.  
  36.  
  37. ll countOnes(ll mask)
  38. {
  39.     return __builtin_popcount(mask);
  40. }
  41.  
  42.  
  43. int pop(ll mask) // also for counting the number of ones but just implemented from scratch
  44. {
  45.     int ct = 0;
  46.     for(int i = 0 ;(mask>>i)> 0;i++)
  47.     {
  48.         ct +=(((mask>>i) &1)?1:0);
  49. //        if((mask>>i)&1 == 1)
  50. //        {
  51. //            ct+=1;
  52. //        }
  53.     }
  54.     return ct;
  55. }
  56.  
  57. int main()
  58. {
  59. 	return 0 ; 
  60. }
Success #stdin #stdout 0.01s 5304KB
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https://ideone.com/U97Qm1
language:
C++ (gcc 8.3)
created:
13 days ago
visibility:
public

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