Rounding Something's Cost
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function ceiling(n, s = 1000) {
var ratusan = n % 1000;
var pembulatanRatusan = Math.ceil(ratusan / s) * s;
var ribuan = n - ratusan;
return ratusan <= 500 ? ribuan : ribuan + pembulatanRatusan;
}
console.log(ceiling(12600, 1000));
JavaScript
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