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Add: Reverse Words in a String

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Lines changed: 14 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -1 +1,15 @@`
`1`	`1`	`package reverse_words_in_a_string`
	`2`	`+`
	`3`	`+import (`
	`4`	`+ "regexp"`
	`5`	`+ "strings"`
	`6`	`+)`
	`7`	`+`
	`8`	`+func reverseWords(s string) string {`
	`9`	+ reg := regexp.MustCompile(`\S+`)
	`10`	`+ words := reg.FindAllString(s, -1)`
	`11`	`+ for i, j := 0, len(words)-1; i < j; i, j = i+1, j-1 {`
	`12`	`+ words[i], words[j] = words[j], words[i]`
	`13`	`+ }`
	`14`	`+ return strings.Join(words, " ")`
	`15`	`+}`

Lines changed: 30 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -1 +1,31 @@`
`1`	`1`	`package reverse_words_in_a_string`
	`2`	`+`
	`3`	`+import "testing"`
	`4`	`+`
	`5`	`+type caseType struct {`
	`6`	`+ input string`
	`7`	`+ expected string`
	`8`	`+}`
	`9`	`+`
	`10`	`+func TestReverseWords(t *testing.T) {`
	`11`	`+ tests := [...]caseType{`
	`12`	`+ {`
	`13`	`+ input: "the sky is blue",`
	`14`	`+ expected: "blue is sky the",`
	`15`	`+ },`
	`16`	`+ {`
	`17`	`+ input: " hello world! ",`
	`18`	`+ expected: "world! hello",`
	`19`	`+ },`
	`20`	`+ {`
	`21`	`+ input: "a good example",`
	`22`	`+ expected: "example good a",`
	`23`	`+ },`
	`24`	`+ }`
	`25`	`+ for _, tc := range tests {`
	`26`	`+ output := reverseWords(tc.input)`
	`27`	`+ if output != tc.expected {`
	`28`	`+ t.Fatalf("input: %v, output: %v, expected: %v", tc.input, output, tc.expected)`
	`29`	`+ }`
	`30`	`+ }`
	`31`	`+}`

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