Triplet Sum In Array Java

 What is Triplet Sum ?
Ans: "Triplet sum" ka matlab hota hai ki aap ek array mein se teeno elements ko select karke unka sum calculate karte hain. Triplet sum ek common programming problem hai, jahan aapko ek array of integers diya hota hai aur aapko teeno aise elements ko dhundna hota hai jo ki ek specific sum ke barabar hain.

Yadi hum ek example dekhein, to maan lijiye aapke paas ek array hai: [1, 2, 3, 4, 5, 6] aur aapko triplet sum nikalna hai jiska sum 9 ho. To aapke pasandida triplet sum [2, 3, 4] hoga kyunki 2 + 3 + 4 = 9.

Triplet sum problems programming interviews mein bhi aksar puche jate hain aur inhe solve karne ke liye alag-alag algorithms ka istemal hota hai. Aap brute-force approach ka istemal karke, yani teeno nested loops ka istemal karke, ya efficient tarike se bhi triplet sum problems ko solve kar sakte hain.

package aRray;

import java.util.*;

public class tripletSum {

public static void main(String[] args) {

// TODO Auto-generated method stub

Scanner scan = new Scanner(System.in);

int size = scan.nextInt();

int count = 0;

int targetSum = 8;

int arr [] = new int[size];

for(int i = 0; i < size; i ++ ) {

arr[i] = scan.nextInt();

}

for(int i = 0 ; i < size; i++) {

for(int j = i+1; j < size; j++) {

for(int k = j+1; k < size; k++) {

if(arr[i]+arr[j]+arr[k] == targetSum) {

count++;

}

}

}

}

System.out.println(count);

}

}