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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		// your code goes here
  13. 		Scanner sc=new Scanner(System.in);
  14. 		int n=sc.nextInt();
  15.  
  16. 		int a[]=new int[n];
  17. 			int b[]=new int[n];
  18. 				int c[]=new int[n];
  19. 					int d[]=new int[n];
  20. 						int e[]=new int[n];
  21.  
  22. 						for(int i=0;i<n;i++)
  23. 						a[i]=sc.nextInt();
  24.  
  25. 						for(int j=0;j<n;j++)
  26. 						b[j]=sc.nextInt();
  27.  
  28. 						for(int k=0;k<n;k++)
  29. 						c[k]=sc.nextInt();
  30.  
  31. 						for(int l=0;l<n;l++)
  32. 						d[l]=sc.nextInt();
  33.  
  34. 						for(int m=0;m<n;m++)
  35. 						e[m]=sc.nextInt();
  36.  
  37. 						//storing the sum of the last 2 array values in hashmap
  38. 						Map<Integer,Integer> m=new HashMap<>();
  39.  
  40. 					//storing the sum of the last 2 array values in hashmap
  41. 					for(int i=0;i<n;i++)
  42. 					{
  43. 						for(int j=0;j<n;j++)
  44. 						{
  45. 							int sum=d[i]+e[j];
  46. 							m.put(sum,m.getOrDefault(sum,0)+1);
  47. 						}
  48. 					}
  49.  
  50.  
  51. 					int ans=0;
  52. 					for(int i=0;i<n;i++)
  53. 					{
  54. 						for(int j=0;j<n;j++)
  55. 						{
  56. 							for(int k=0;k<n;k++)
  57. 							{
  58. 								int val=a[i]+b[j]+c[k];
  59. 								if(m.containsKey(-val))
  60. 								ans+=m.get(-val);
  61. 							}
  62. 						}
  63. 					}
  64.  
  65. 					System.out.println(ans);
  66.  
  67.  
  68. 	}
  69. }
Success #stdin #stdout 0.14s 56496KB
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2 5 
3 8
-5 8
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https://ideone.com/mGbv16
language:
Java (HotSpot 12)
created:
14 hours ago
visibility:
public

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