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`@@ -66,6 +66,7 @@ This is the solutions collection of my LeetCode submissions, most of them are pr`
`66`	`66`	`\|207\|[Course Schedule](https://leetcode.com/problems/course-schedule/)\|[JavaScript](./src/course-schedule/res.js)\|Medium\|`
`67`	`67`	`\|210\|[Course Schedule II](https://leetcode.com/problems/course-schedule-ii/)\|[JavaScript](./src/course-schedule-ii/res.js)\|Medium\|`
`68`	`68`	`\|240\|[Search a 2D Matrix II](https://leetcode.com/problems/search-a-2d-matrix-ii/)\|[JavaScript](./src/search-a-2d-matrix-ii/res.js)\|Medium\|`
	`69`	`+\|299\|[Bulls and Cows](https://leetcode.com/problems/bulls-and-cows/)\|[JavaScript](./src/bulls-and-cows/res.js)\|Medium\|`
`69`	`70`	`\|307\|[Range Sum Query - Mutable](https://leetcode.com/problems/range-sum-query-mutable/)\|[JavaScript](./src/range-sum-query-mutable/res.js)\|Medium\|`
`70`	`71`	`\|310\|[Minimum Height Trees](https://leetcode.com/problems/minimum-height-trees/)\|[JavaScript](./src/minimum-height-trees/res.js)\|Medium\|`
`71`	`72`	`\|342\|[Power of Four](https://leetcode.com/problems/power-of-four/)\|[JavaScript](./src/power-of-four/res.js)\|Easy\|`

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`@@ -0,0 +1,32 @@`
	`1`	`+/**`
	`2`	`+ *@param {string} secret`
	`3`	`+ *@param {string} guess`
	`4`	`+ *@return {string}`
	`5`	`+ */`
	`6`	`+vargetHint=function(secret,guess){`
	`7`	`+constarrLen=secret.length;`
	`8`	`+letstrA=0;`
	`9`	`+letstrB=0;`
	`10`	`+letsecMap=newArray(10);`
	`11`	`+letgueMap=newArray(10);`
	`12`	`+`
	`13`	`+for(letindex=0;index<arrLen;index++){`
	`14`	`+if(secret[index]===guess[index]){`
	`15`	`+strA++;`
	`16`	`+}else{`
	`17`	`+constsecNum=parseInt(secret[index]);`
	`18`	`+constguenum=parseInt(guess[index]);`
	`19`	`+`
	`20`	`+(secMap[secNum] ?secMap[secNum]+=1 :secMap[secNum]=1);`
	`21`	`+(gueMap[guenum] ?gueMap[guenum]+=1 :gueMap[guenum]=1);`
	`22`	`+}`
	`23`	`+}`
	`24`	`+`
	`25`	`+for(letindex=0;index<10;index++){`
	`26`	`+strB+=(secMap[index]&&gueMap[index]&&(secMap[index]>gueMap[index] ?gueMap[index] :secMap[index])\|\|0);`
	`27`	`+}`
	`28`	`+`
	`29`	`+// console.log(secMap, gueMap);`
	`30`	`+`
	`31`	+return`${strA}A${strB}B`;
	`32`	`+};`

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