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Create: 0027-Remove-Element.dart

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	`1`	`+classSolution {`
	`2`	`+intremoveElement(List<int> nums,int val) {`
	`3`	`+int i=0;`
	`4`	`+int end= nums.length-1;`
	`5`	`+while (i<= end) {`
	`6`	`+if (nums[i]== val) {`
	`7`	`+int tmp= nums[end];`
	`8`	`+ nums[end]= nums[i];`
	`9`	`+ nums[i]= tmp;`
	`10`	`+ end-=1;`
	`11`	`+ }else {`
	`12`	`+ i+=1;`
	`13`	`+ }`
	`14`	`+ }`
	`15`	`+return i;`
	`16`	`+ }`
	`17`	`+}`

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