Last active
October 12, 2022 12:13
-
-
Save clarketm/2d1f83a1f117d4d36cf24a05712a857e to your computer and use it in GitHub Desktop.
Largest Binary Gap (JavaScript)
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
function largestBinaryGap(num) { | |
var bin = Math.abs(num).toString(2), | |
finalMax = 0, | |
currentMax; | |
for (var i = 0; i < bin.length; i++) { | |
currentMax = 0; | |
while (bin[i] === "0") { | |
++currentMax && ++i; | |
} | |
finalMax = Math.max(finalMax, currentMax); | |
} | |
return finalMax; | |
} | |
console.log(largestBinaryGap(1)); // 1 //=> 0 | |
console.log(largestBinaryGap(5)); // 101 //=> 1 | |
console.log(largestBinaryGap(6)); // 110 //=> 1 | |
console.log(largestBinaryGap(19)); // 10011 //=> 2 | |
console.log(largestBinaryGap(1041)); // 10000010001 //=> 5 | |
console.log(largestBinaryGap(6291457)); // 11000000000000000000001 //=> 20 | |
console.log(largestBinaryGap(1376796946)); // 1010010000100000100000100010010 //=> 5 | |
console.log(largestBinaryGap(1610612737)); // 1100000000000000000000000000001 //=> 28 |
This is my solution with very less code and no direct loops
function solution(N) {
const binnum = Number(N).toString(2);
let str = binnum.split('1');
const newarr = str.filter(function(item,index){
if (item === ''){
}else if (index === str.length -1) {
}else {
return item;
}
})
return newarr.length > 0 ? newarr.sort()[newarr.length -1].length : 0;
}
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
After reading all these solutions, I came up with something that beginners can really easily understand: