# Minimum Addition to Make Integer Beautiful

``````const makeIntegerBeautiful = (n, target) => {
// calling digit function which will give us all number in array format
let d = digits(n);
// checking sum of all current digits
let s = d.reduce((a, b) => a + b);
// this is to check what sum we have to add to make it beautiful
let beautifier = 0;
// index to keep 0th tenth, hundredth place in number system
let i = 0;

// looping till s is greater than target
while (s > target) {
// talking the last digit of n i.e.. 0 index from digit array
// subtracting it from 10 to get number which we can add to make it 10
const m = (10 - d) % 10;
// adding it to beautifier to count sum & Math.pow will give us place of number i.e.,0th tenth, hundredth place in number system
beautifier += m * Math.pow(10, i++);
n += m;
// this is to remove the last 0 from number if number is suppose 470  then will make n to 47
n = n / 10;
d = digits(n);
s = d.reduce((a, b) => a + b);
}

return beautifier;
};

const digits = (n) => {
const digist = [];
while (n !== 0) {
digist.push(n % 10);
n = Math.floor(n / 10);
}
return digist;
};

console.log(makeIntegerBeautiful(16, 6));

``````