Commit 53f0c96

author

Shuo

committed

A: Increasing Decreasing String

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+65

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Lines changed: 26 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,26 @@`
	`1`	`+package problem1370`
	`2`	`+`
	`3`	`+func sortString(s string) string {`
	`4`	`+ var m [26]int`
	`5`	`+ for _, c := range s {`
	`6`	`+ m[c-'a']++`
	`7`	`+ }`
	`8`	`+ l := len(s)`
	`9`	`+ ans := make([]byte, 0, l)`
	`10`	`+ appendChar := func(c int) {`
	`11`	`+ if m[c] > 0 {`
	`12`	`+ m[c]--`
	`13`	`+ l--`
	`14`	`+ ans = append(ans, byte(c+'a'))`
	`15`	`+ }`
	`16`	`+ }`
	`17`	`+ for l > 0 {`
	`18`	`+ for i := 0; i <= 25; i++ {`
	`19`	`+ appendChar(i)`
	`20`	`+ }`
	`21`	`+ for i := 25; i >= 0; i-- {`
	`22`	`+ appendChar(i)`
	`23`	`+ }`
	`24`	`+ }`
	`25`	`+ return string(ans)`
	`26`	`+}`

Lines changed: 39 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,39 @@`
	`1`	`+package problem1370`
	`2`	`+`
	`3`	`+import "testing"`
	`4`	`+`
	`5`	`+type testType struct {`
	`6`	`+ in string`
	`7`	`+ want string`
	`8`	`+}`
	`9`	`+`
	`10`	`+func TestSortString(t *testing.T) {`
	`11`	`+ tests := [...]testType{`
	`12`	`+ {`
	`13`	`+ in: "aaaabbbbcccc",`
	`14`	`+ want: "abccbaabccba",`
	`15`	`+ },`
	`16`	`+ {`
	`17`	`+ in: "rat",`
	`18`	`+ want: "art",`
	`19`	`+ },`
	`20`	`+ {`
	`21`	`+ in: "leetcode",`
	`22`	`+ want: "cdelotee",`
	`23`	`+ },`
	`24`	`+ {`
	`25`	`+ in: "ggggggg",`
	`26`	`+ want: "ggggggg",`
	`27`	`+ },`
	`28`	`+ {`
	`29`	`+ in: "spo",`
	`30`	`+ want: "ops",`
	`31`	`+ },`
	`32`	`+ }`
	`33`	`+ for _, tt := range tests {`
	`34`	`+ got := sortString(tt.in)`
	`35`	`+ if got != tt.want {`
	`36`	`+ t.Fatalf("in: %v, got: %v, want: %v", tt.in, got, tt.want)`
	`37`	`+ }`
	`38`	`+ }`
	`39`	`+}`

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