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  1. import java.io.*;
  2. import java.math.*;
  3. import java.util.*;
  4. class Solution
  5. {
  6. public static void main (String[] args)throws IOException
  7. {
  8. try{
  9. BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
  10. int t=Integer.parseInt(br.readLine());
  11. while(t!=0)
  12. {
  13. int n=Integer.parseInt(br.readLine());
  14. String a[]=new String[n];
  15. int vote[]=new int[n]; 
  16. int i,j;
  17. String ip[]=new String[2];
  18. for(i=0;i<n;i++)
  19. {
  20.     ip=br.readLine().split(" ");
  21.     a[i]=ip[0];
  22.     char ch=ip[1].charAt(0);
  23.     if(ch=='+')
  24.     vote[i]=1;
  25.     else
  26.     vote[i]=-1;
  27. }
  28. int lastpos=0;
  29. int track[]=new int[n];
  30. for(i=0;i<n;i++)
  31. {
  32.     for(j=0;j<n;j++)
  33.     {
  34.         if(track[i]==0 && a[i].equals(a[j])==true)
  35.         {
  36.             if(i!=j)
  37.             track[lastpos]=1;
  38.             lastpos=j;
  39.         }
  40.     }
  41.      track[lastpos]=100000;
  42. }
  43. int count=0;
  44. for(i=0;i<n;i++)
  45. {
  46.     if(track[i]==100000)
  47.     count=count+vote[i];
  48. }
  49.    System.out.println(count);
  50.    t--;
  51. }
  52. }catch(Exception e)
  53. {return;}    
  54. }
  55. }
Success #stdin #stdout 0.1s 320576KB
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https://ideone.com/oXlQy4
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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