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Merge pull requestneetcode-gh#168 from r1cky0/patch-14

Create 54-Spiral-Matrix.java

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	`1`	`+classSolution {`
	`2`	`+publicList<Integer>spiralOrder(int[][]matrix) {`
	`3`	`+List<Integer>list =newArrayList<>();`
	`4`	`+intrb =0;`
	`5`	`+intre =matrix.length -1;`
	`6`	`+intcb =0;`
	`7`	`+intce =matrix[0].length -1;`
	`8`	`+`
	`9`	`+while (rb <=re &&cb <=ce) {`
	`10`	`+for (intj =cb;j <=ce;j++) {`
	`11`	`+list.add(matrix[rb][j]);`
	`12`	`+ }`
	`13`	`+rb++;`
	`14`	`+`
	`15`	`+for (inti =rb;i <=re;i++) {`
	`16`	`+list.add(matrix[i][ce]);`
	`17`	`+ }`
	`18`	`+ce--;`
	`19`	`+`
	`20`	`+if (rb <=re) {`
	`21`	`+for (intj =ce;j >=cb;j--) {`
	`22`	`+list.add(matrix[re][j]);`
	`23`	`+ }`
	`24`	`+ }`
	`25`	`+re--;`
	`26`	`+`
	`27`	`+if (cb <=ce) {`
	`28`	`+for (inti =re;i >=rb;i--) {`
	`29`	`+list.add(matrix[i][cb]);`
	`30`	`+ }`
	`31`	`+ }`
	`32`	`+cb++;`
	`33`	`+ }`
	`34`	`+`
	`35`	`+returnlist;`
	`36`	`+ }`
	`37`	`+}`

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