Commit6f4542b

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refactor 454

1 parent96c77c9 commit6f4542bCopy full SHA for 6f4542b

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-9

lines changed

Lines changed: 5 additions & 9 deletions

Original file line number	Diff line number	Diff line change
`@@ -5,24 +5,20 @@`
`5`	`5`
`6`	`6`	`publicclass_454 {`
`7`	`7`	`publicstaticclassSolution1 {`
`8`		`-publicintfourSumCount(int[]A,int[]B,int[]C,int[]D) {`
	`8`	`+publicintfourSumCount(int[]nums1,int[]nums2,int[]nums3,int[]nums4) {`
`9`	`9`	`Map<Integer,Integer>map =newHashMap();`
`10`	`10`	`intresult =0;`
`11`		`-intlen =A.length;`
	`11`	`+intlen =nums1.length;`
`12`	`12`	`for (inti =0;i <len;i++) {`
`13`	`13`	`for (intj =0;j <len;j++) {`
`14`		`-intsum =A[i] +B[j];`
`15`		`-if (map.containsKey(sum)) {`
`16`		`-map.put(sum,map.get(sum) +1);`
`17`		`- }else {`
`18`		`-map.put(sum,1);`
`19`		`- }`
	`14`	`+intsum =nums1[i] +nums2[j];`
	`15`	`+map.put(sum,map.getOrDefault(sum,0) +1);`
`20`	`16`	`}`
`21`	`17`	`}`
`22`	`18`
`23`	`19`	`for (inti =0;i <len;i++) {`
`24`	`20`	`for (intj =0;j <len;j++) {`
`25`		`-intsum = -(C[i] +D[j]);`
	`21`	`+intsum = -(nums3[i] +nums4[j]);`
`26`	`22`	`if (map.containsKey(sum)) {`
`27`	`23`	`result +=map.get(sum);`
`28`	`24`	`}`

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