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  1. #include<iostream>
  2. #include<bits/stdc++.h>
  3. #include<stdio.h>
  4. using namespace std;
  5. #define fo(i,n)   for(i=0;i<(n);++i)
  6. #define repA(i,j,n)   for(i=(j);i<=(n);++i)
  7. #define repD(i,j,n)   for(i=(j);i>=(n);--i)
  8. #define pb push_back
  9. #define mp make_pair
  10. #define X first
  11. #define Y second
  12. #define endl "\n"
  13. #define PI 3.1415926535897932384626433832795
  14. typedef long long int lli;
  15. typedef long double mytype;
  16. typedef pair<lli,lli> ii;
  17. typedef vector<ii> vii;
  18. typedef vector<lli> vi;
  19.  
  20. const int me = 20;
  21. struct Gauss {
  22. 	int table[me];
  23.  
  24. 	Gauss() {
  25. 		for(int i = 0; i < me; i++) {
  26. 			table[i] = 0;
  27. 		}
  28. 	}
  29.  
  30. 	int size() {
  31. 		int ans = 0;
  32. 		for(int i = 0; i < me; i++) {
  33. 			if(table[i]) ans++;
  34. 		}
  35. 		return ans;
  36. 	}
  37.  
  38. 	bool can(int x) {
  39. 		for(int i = me-1; i >= 0; i--) {
  40. 			x = std::min(x, x ^ table[i]);
  41. 		}
  42. 		return x == 0;
  43. 	}
  44.  
  45. 	void add(int x) {
  46. 		for(int i = me-1; i >= 0 && x; i--) {
  47. 			if(table[i] == 0) {
  48. 				table[i] = x;
  49. 				x = 0;
  50. 			} else {
  51. 				x = std::min(x, x ^ table[i]);
  52. 			}
  53. 		}
  54. 	}
  55.  
  56. 	int best() {
  57. 		int x = 0;
  58. 		for(int i = me-1; i >= 0; i--) {
  59. 			x = std::max(x, x ^ table[i]);
  60. 		}
  61. 		return x;
  62. 	}
  63. 	void prt()
  64. 	{
  65. 	    for(int i = me-1; i >= 0; i--) {
  66. 			if(table[i])
  67. 			    cout<<table[i]<<" ";
  68. 		}
  69. 		cout<<endl;
  70. 	}
  71. };
  72.  
  73. int main(void) {
  74.     ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
  75.  
  76.     Gauss test;
  77.     test.add(4);
  78.     test.prt();
  79.  
  80.     test.add(1);
  81.     test.prt();
  82.  
  83.     test.add(8);
  84.     test.prt();
  85.     return 0;
  86. }
Success #stdin #stdout 0s 15232KB
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4 
4 1 
4 1 8
https://ideone.com/pjep7X
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
secret

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