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practise.js
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practise.js
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// splitwise code algo
const V = 3;
// [to ,from, money]
let E = [
[0, 1, 100],
[1, 2, 50],
[2, 0, 40],
];
let netarr = [];
for (let i = 0; i < V; i++) {
let amcredit = 0;
let amdebit = 0;
for (let j = 0; j < V; j++) {
if (E[j][0] == i) {
amdebit = amdebit + E[j][2];
}
if (E[j][1] == i) {
amcredit = amcredit + E[j][2];
}
}
netarr[i] = amcredit - amdebit;
}
let count = 0;
function settlement(netarr) {
let i = 0;
let j = netarr.length - 1;
while (i < j) {
let lo = netarr[i];
let hi = netarr[j];
let settlementamt = Math.min(-lo, hi);
netarr[i] += settlementamt;
netarr[j] -= settlementamt;
console.log(i + " pays " + settlementamt + " to " + j);
if (netarr[i] == 0) {
i++;
}
if (netarr[j] == 0) {
j--;
}
count++;
}
}
// netarr.sort();
console.log(netarr);
settlement(netarr);
// console.log(netarr);
console.log(count);