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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	ios_base::sync_with_stdio(false);
  6. 	int t;
  7. 	cin>>t;
  8. 	int u=1;
  9. 	while(t--)
  10. 	{
  11. 	    int n,k,maxm=0;
  12. 	    cin>>n>>k;
  13. 	    cout<<"Case "<<u++<<":"<<endl;
  14. 	    unordered_map<string ,int> m;
  15. 	    queue<string> q;
  16. 	    set<string> v[n+1];
  17. 	    string s,l,p,prev;
  18. 	    for(int i=0;i<n;i++)
  19. 	    {
  20. 	    	cin>>s;
  21. 	        if(q.size()>=k)
  22. 	        {
  23. 	        	p=q.front();
  24. 	            q.pop();
  25. 	            v[m[p]].erase(p);
  26. 	            m[p]--;
  27. 	            if(maxm==m[p]+1)
  28. 	            {
  29. 	            	if(v[maxm].size()==0)
  30. 	            	maxm=m[p];
  31. 	            }
  32.  
  33. 	            v[m[p]].insert(p);
  34.  
  35. 	        }
  36. 	        q.push(s);
  37. 	        m[s]++;
  38. 	        v[m[s]].insert(s);
  39. 	        if(m[s]>maxm)
  40. 	        {
  41. 	        	l=s;
  42. 	            maxm=m[s];
  43. 	        }
  44. 	        if(m[p]>maxm)
  45. 	        {
  46. 	        	maxm=m[p];
  47. 	            l=p;
  48. 	        }
  49.  
  50. 	        set<string>::iterator it=v[maxm].begin();
  51. 	        cout<<*it<<" "<<maxm<<endl;
  52. 	    }
  53. 	}
  54. 	return 0;
  55. }
Success #stdin #stdout 0s 3476KB
comments (?)
stdin
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2
8 3
hello
hi
who
hi
hi
hello
who
when
8 3
hello
hi
who
hi
hi
hello
who
when
stdout
copy 
Case 1:
hello 1
hello 1
hello 1
hi 2
hi 2
hi 2
hello 1
hello 1
Case 2:
hello 1
hello 1
hello 1
hi 2
hi 2
hi 2
hello 1
hello 1
https://ideone.com/juKmDX
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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