Update: Excel Sheet Column Title

openset · openset · commit e8cfc2631c23 · 2019-02-26T13:27:29.000+08:00
diff --git a/problems/excel-sheet-column-title/excel_sheet_column_title.go b/problems/excel-sheet-column-title/excel_sheet_column_title.go
@@ -1,8 +1,8 @@
 package excel_sheet_column_title
 
 func convertToTitle(n int) string {
-	if n < 27 {
-		return string(n - 1 + 'A')
+	if n--; n < 26 {
+		return string(n + 'A')
 	}
-	return convertToTitle((n-1)/26) + string((n-1)%26+'A')
+	return convertToTitle(n/26) + string(n%26+'A')
 }

Original file line number	Diff line number	Diff line change
`@@ -1,8 +1,8 @@`
`1`	`1`	`package excel_sheet_column_title`
`2`	`2`
`3`	`3`	`func convertToTitle(n int) string {`
`4`		`- if n < 27 {`
`5`		`- return string(n - 1 + 'A')`
	`4`	`+ if n--; n < 26 {`
	`5`	`+ return string(n + 'A')`
`6`	`6`	`}`
`7`		`- return convertToTitle((n-1)/26) + string((n-1)%26+'A')`
	`7`	`+ return convertToTitle(n/26) + string(n%26+'A')`
`8`	`8`	`}`