Update solution 0494. Considering new edge test case.

zhufenggood · zhufenggood · commit e89003a2e360 · 2021-09-02T18:01:03.000+08:00
diff --git a/leetcode/0494.Target-Sum/README.md b/leetcode/0494.Target-Sum/README.md
@@ -63,7 +63,7 @@ func findTargetSumWays(nums []int, S int) int {
 	for _, n := range nums {
 		total += n
 	}
-	if S > total || (S+total)%2 == 1 {
+	if S > total || (S+total)%2 == 1 || S+total < 0 {
 		return 0
 	}
 	target := (S + total) / 2

Original file line number	Diff line number	Diff line change
`@@ -63,7 +63,7 @@ func findTargetSumWays(nums []int, S int) int {`
`63`	`63`	`for _, n := range nums {`
`64`	`64`	`total += n`
`65`	`65`	`}`
`66`		`- if S > total \|\| (S+total)%2 == 1 {`
	`66`	`+ if S > total \|\| (S+total)%2 == 1 \|\| S+total < 0 {`
`67`	`67`	`return 0`
`68`	`68`	`}`
`69`	`69`	`target := (S + total) / 2`