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  1. #include<iostream>
  2. #include<algorithm>
  3. #include<vector>
  4. #include<string>
  5. using namespace std;
  6. int main() {
  7. 	int n;
  8. 	cin>>n;
  9. 	vector<string> v;
  10. 	vector<string> f;
  11. 	vector<string> blocked,passed;
  12. 	string s;
  13. 	cin.ignore();
  14. 	int index,pos;
  15. 	int k;
  16. 	vector<string>::iterator low;
  17. 	while(n--) {
  18. 		getline(cin,s);
  19. 		v.push_back(s);
  20. 	}
  21. 	sort(v.begin(),v.end());
  22. 	int start=0;
  23. 	for(int i=0;i<v.size();i++) {
  24. 		if(v[i][0]=='-') {
  25. 			start=i;
  26. 			break;
  27. 		}
  28. 	}
  29. 	for(int i=start;i<v.size();i++) {
  30. 			string s=v[i].substr(2);
  31. 			blocked.push_back(s);
  32. 	}
  33. 	for(int i=0;i<start;i++) {
  34. 		string s=v[i].substr(2);
  35. 		passed.push_back(s);
  36. 	}
  37. 	v.clear();
  38. 	int bl=blocked.size();
  39. 	int pl=passed.size();
  40. 	cout<<"bl="<<bl<<endl;
  41. 	cout<<"pl="<<pl<<endl;
  42. 	cout<<"-----------------passed-----------------------"<<endl;
  43. 	for(int i=0;i<pl;i++) {
  44. 		cout<<passed[i]<<endl;
  45.  
  46. 	}
  47. 		cout<<"-----------------blocked-----------------------"<<endl;
  48. 	for(int i=0;i<bl;i++) {
  49. 		cout<<blocked[i]<<endl;
  50.  
  51. 	}
  52. 	for(int i=0;i<bl;i++) {
  53. 		string x=blocked[i];
  54. 		cout<<"x="<<x<<endl;
  55. 		low=lower_bound(passed.begin(),passed.end(),x);
  56. 		index=low-passed.begin();
  57. 		string y=passed[index];
  58. 		cout<<"y="<<y<<endl;
  59. 		int xlen=x.length();
  60. 		int ylen=y.length();
  61. 		int minlen=min(xlen,ylen);
  62. 		cout<<"minlen="<<minlen<<endl;
  63. 		for(int i=0;i<minlen;i++) {
  64. 			if(x[i]!=y[i]) {
  65. 				pos=i;
  66. 				break;
  67. 			}}
  68. 			string h=x.substr(0,pos+1);
  69. 			cout<<"h="<<h<<endl;
  70. 			f.push_back(h);	
  71. 		}
  72. 		int d=f.size();
  73. 		cout<<"d="<<d<<endl;
  74. 		for(int i=0;i<f.size();i++) {
  75. 			cout<<f[i]<<endl;
  76. 		}
  77.  
  78. }
Runtime error #stdin #stdout #stderr 0s 16080KB
comments (?)
stdin 
4
- codeforces
+ codechef
- youtube
+ google
stdout 
bl=2
pl=2
-----------------passed-----------------------
codechef
google
-----------------blocked-----------------------
codeforces
youtube
x=codeforces
y=google
minlen=6
h=c
x=youtube
stderr 
terminate called after throwing an instance of 'std::logic_error'
  what():  basic_string::_M_construct null not valid
https://ideone.com/4NgCWz
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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