Question

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

Answer 1

function findTripletsWith0Sum(arr: number[]) {
    let found: boolean = false;
    const size: number = arr.length;
    
    for (let i: number = 0; i < size - 2; i++) {
        for (let j: number = i + 1; j < size - 1; j++) {
            for (let k: number = 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: number[] = [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" 
 
*/

 

70+ SQL courses for beginners and professionals