Question

How to find all triplets with zero sum in a given list with Dart

Answer 1

import 'dart:io';

void findTripletsWith0Sum(List<int> lst) {
    var found = false;
    var size = lst.length;
        
    for (var i = 0; i < size - 2; i++) {
        for (var  j = i + 1; j < size - 1; j++) {
            for (var  k = j + 1; k < size; k++) {
                if (lst[i] + lst[j] + lst[k] == 0) {
                    print(lst[i].toString() + " + " + lst[j].toString() + " + " + lst[k].toString());
                    found = true;
                }
            }
        }
    }
    
    if (found == false) {
        stdout.write("Not found");
    }
}

void main()
{
    List<int> lst = [1, 0, 3, 2, -1, -2, -3, 4];
    
    findTripletsWith0Sum(lst);
}




/*
run:

1 + 0 + -1
1 + 2 + -3
0 + 3 + -3
0 + 2 + -2
3 + -1 + -2
-1 + -3 + 4

*/

 

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