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  1. #include <iostream>
  2. #include <vector>
  3. #include <cmath>
  4. #include <stdio.h>
  5. #include <cstring>
  6. #include <map>
  7. #include <algorithm>
  8. using namespace std;
  9.  
  10.  
  11. bool all_arr[21]={1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1};
  12. bool clear_arr[21]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
  13. bool arr[21];
  14. long long M;
  15. string asd;
  16. int x;
  17. vector <bool> result;
  18. int result_cnt;
  19.  
  20. int main()
  21. {
  22. 	ios_base::sync_with_stdio(0);
  23. 	cin.tie(0);
  24.  
  25. 	cin>>M;
  26. 	for(int i=0; i<M; i++)
  27. 	{
  28. 		cin>>asd;
  29.  
  30. 		if(asd=="add")
  31. 		{
  32. 			cin>>x;
  33. 			arr[x] = true;
  34. 		}
  35. 		else if(asd=="remove")
  36. 		{
  37. 			cin>>x;
  38. 			arr[x] = false;
  39. 		}
  40. 		else if(asd=="toggle")
  41. 		{
  42. 			cin>>x;
  43. 			arr[x] = ~arr[x];
  44. 		}
  45. 		else if(asd=="all")
  46. 		{
  47. 			for(int i=1; i<21; i++)
  48. 			{
  49. 				arr[i] = true;
  50. 			}
  51. 		}
  52. 		else if(asd=="empty")
  53. 		{
  54. 			for(int i=1; i<21; i++)
  55. 			{
  56. 				arr[i] = false;
  57. 			}
  58. 		}
  59. 		else if(asd=="check")
  60. 		{
  61. 			cin>>x;
  62. 			if(arr[x])
  63. 			{
  64. 				result.push_back(true);
  65. 				result_cnt++;
  66. 			}
  67. 			else
  68. 			{
  69. 				result.push_back(false);
  70. 				result_cnt++;
  71. 			}
  72.  
  73. 		}
  74.  
  75. 	}
  76.  
  77. 	for(int i=0; i<result_cnt; i++)
  78. 	{
  79. 		cout<<result[i]<<"\n";
  80. 	}
  81.  
  82. 	return 0;
  83. }
Success #stdin #stdout 0s 5300KB
comments (?)
stdin
copy 
26
add 1
add 2
check 1
check 2
check 3
remove 2
check 1
check 2
toggle 3
check 1
check 2
check 3
check 4
all
check 10
check 20
toggle 10
remove 20
check 10
check 20
empty
check 1
toggle 1
check 1
toggle 1
check 1
stdout
copy 
1
1
0
1
0
1
0
1
0
1
1
1
0
0
1
1
https://ideone.com/UUNBVc
language:
C++14 (gcc 8.3)
created:
16 days ago
visibility:
public

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