Commit 49eb9db

committed

✨ distant barcodes

1 parent 7654465 commit 49eb9dbCopy full SHA for 49eb9db

File tree

+46

-0

lines changed

+46

-0

lines changed

Lines changed: 3 additions & 0 deletions

Lines changed: 43 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,43 @@`
	`1`	`+/**`
	`2`	`+ * @param {number[]} barcodes`
	`3`	`+ * @return {number[]}`
	`4`	`+ */`
	`5`	`+`
	`6`	`+// HELP:`
	`7`	`+var rearrangeBarcodes = function (barcodes = []) {`
	`8`	`+ if (barcodes.length <= 2) {`
	`9`	`+ return barcodes;`
	`10`	`+ }`
	`11`	`+ // 数组排序`
	`12`	`+ barcodes.sort();`
	`13`	`+`
	`14`	`+ const len = barcodes.length;`
	`15`	`+ let mid = Number.parseInt(len / 2);`
	`16`	`+ let listL = undefined;`
	`17`	`+ let listR = undefined;`
	`18`	`+ let l = 0;`
	`19`	`+ let r = mid;`
	`20`	`+ // 如果长度为奇数,则 listL 长度加一`
	`21`	`+ if (len % 2 !== 0) {`
	`22`	`+ r = mid + 1;`
	`23`	`+ }`
	`24`	`+ // 窗口滑动`
	`25`	`+ while (r < barcodes.length && barcodes[r - 1] === barcodes[r]) {`
	`26`	`+ l += 1;`
	`27`	`+ r += 1;`
	`28`	`+ }`
	`29`	`+ listL = barcodes.slice(l, r);`
	`30`	`+ listR = [...barcodes.slice(0, l), ...barcodes.slice(r)];`
	`31`	`+`
	`32`	`+ // 新建一个 array,将 listL 和 listR 数据插入其中`
	`33`	`+ let res = Array(len);`
	`34`	`+ for (let i = 0; i < listR.length; i++) {`
	`35`	`+ res[2 * i] = listL[i];`
	`36`	`+ res[2 * i + 1] = listR[mid - 1 - i];`
	`37`	`+ }`
	`38`	`+`
	`39`	`+ if (len % 2 !== 0) {`
	`40`	`+ res[len - 1] = listL[mid];`
	`41`	`+ }`
	`42`	`+ return res;`
	`43`	`+};`

Comments

(0)