Question

How to find all triplets with zero sum in a given array with JavaScript

Answer 1

 function findTripletsWith0Sum(arr) {
    let found = false;
    const size = arr.length;
     
    for (let i = 0; i < size - 2; i++) {
        for (let j = i + 1; j < size - 1; j++) {
            for (let k = j + 1; k < size; k++) {
                if (arr[i] + arr[j] + arr[k] == 0) {
                    console.log(arr[i] + " + " + arr[j] + " + " + arr[k]);
                    found = true;
                }
            }
        }
    }
     
    if (found == false) {
        console.log("Not found");
    }
}
         
const arr = [1, 0, 3, 2, -1, -2, -3, 4];
 
findTripletsWith0Sum(arr);
 
 
 
 
/*
run:
  
"1 + 0 + -1"
"1 + 2 + -3"
"0 + 3 + -3"
"0 + 2 + -2"
"3 + -1 + -2"
"-1 + -3 + 4"
  
*/

 

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