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  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4. using namespace std;
  5. typedef long long ll;
  6. int main()
  7. {
  8. 	ios_base::sync_with_stdio(false);
  9. 	cout.tie(NULL);
  10. 	cin.tie(NULL);
  11. 	ll n;
  12. 	cin>>n;
  13. 	ll a[200010];
  14. 	for(ll i=0;i<n;i++)
  15. 	cin>>a[i];
  16. 	vector<ll> v,s,m;
  17. 	for(ll i=0;i<n;i++)
  18. 	{
  19. 		if(a[i]==0)
  20. 		{
  21. 			v.push_back(i);
  22. 		}
  23. 		else if(a[i]<0)
  24. 		{
  25. 			s.push_back(a[i]);
  26. 		}
  27. 	}
  28. 	ll k,l;
  29.     if(s.size()%2!=0)
  30.     {
  31.     	sort(s.begin(),s.end());
  32.     	for(ll i=0;i<n;i++)
  33.     	{
  34.     		if(a[i]==s[s.size()-1])
  35.     		{
  36.     			a[i]=0;
  37.     			v.push_back(i);
  38.     			break;
  39. 			}
  40. 		}
  41. 		sort(v.begin(),v.end());
  42. 	}
  43. 		if(v.size()!=n){
  44. 		for(ll i=0;i<(v.size()-1);i++)
  45. 		{
  46. 			cout<<1<<" "<<v[i]+1<<" "<<v[i+1]+1<<endl;
  47. 		}
  48. 		if(v.size()>0)
  49. 		{
  50. 			cout<<2<<" "<<v[v.size()-1]+1<<endl;
  51. 		}
  52. 		l=n;
  53. 	for(ll i=0;i<n;i++)
  54. 	{
  55. 		if(a[i]!=0)
  56. 		{
  57. 			l=i;
  58. 			break;
  59. 		}
  60. 	}
  61. 	for(ll i=l;i<(n-1);i++)
  62. 	{
  63. 		k=(l+1);
  64. 		while(a[k]==0 && k<n)
  65. 		{
  66. 			k++;
  67. 			if(k>=n)
  68. 			break;
  69. 		}
  70. 		if(k<n)
  71. 		{
  72. 			cout<<1<<" "<<l+1<<" "<<k+1<<endl;
  73. 			l=k;
  74. 			i=(l-1);
  75. 		}
  76. 	}}
  77. 	else
  78. 	{
  79. 		for(ll i=0;i<(v.size()-1);i++)
  80. 		{
  81. 			cout<<1<<" "<<v[i]+1<<" "<<v[i+1]+1<<endl;
  82. 		}
  83. 	}
  84. 	return 0;
  85.  
  86. }
Runtime error #stdin #stdout 0s 4556KB
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/t49NzM
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
public

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