Commit 1a47041

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update: 001

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Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -44,7 +44,7 @@ class Solution {`
`44`	`44`	```java
`45`	`45`	`class Solution {`
`46`	`46`	`public int[] twoSum(int[] nums, int target) {`
`47`		`- finalint len = nums.length;`
	`47`	`+ int len = nums.length;`
`48`	`48`	`HashMap<Integer, Integer> map = new HashMap<>();`
`49`	`49`	`for (int i = 0; i < len; ++i) {`
`50`	`50`	`final Integer value = map.get(nums[i]);`

Lines changed: 3 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -27,8 +27,9 @@ public int[] twoSum(int[] nums, int target) {`
`27`	`27`	`int len = nums.length;`
`28`	`28`	`HashMap<Integer, Integer> map = new HashMap<>();`
`29`	`29`	`for (int i = 0; i < len; ++i) {`
`30`		`- if (map.containsKey(nums[i])) {`
`31`		`- return new int[]{map.get(nums[i]), i};`
	`30`	`+ final Integer value = map.get(nums[i]);`
	`31`	`+ if (value != null) {`
	`32`	`+ return new int[] { value, i };`
`32`	`33`	`}`
`33`	`34`	`map.put(target - nums[i], i);`
`34`	`35`	`}`

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