Commit 8634fc7

author

Shuo

authored

Merge pull request #561 from openset/develop

Add: Height Checker

2 parents 3b4042b + 24e30f9 commit 8634fc7Copy full SHA for 8634fc7

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+38

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Lines changed: 15 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,15 @@`
	`1`	`+package height_checker`
	`2`	`+`
	`3`	`+import "sort"`
	`4`	`+`
	`5`	`+func heightChecker(heights []int) int {`
	`6`	`+ ans, dst := 0, make([]int, len(heights))`
	`7`	`+ copy(dst, heights)`
	`8`	`+ sort.Ints(dst)`
	`9`	`+ for i, v := range dst {`
	`10`	`+ if heights[i] != v {`
	`11`	`+ ans++`
	`12`	`+ }`
	`13`	`+ }`
	`14`	`+ return ans`
	`15`	`+}`

Lines changed: 23 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,23 @@`
	`1`	`+package height_checker`
	`2`	`+`
	`3`	`+import "testing"`
	`4`	`+`
	`5`	`+type caseType struct {`
	`6`	`+ input []int`
	`7`	`+ expected int`
	`8`	`+}`
	`9`	`+`
	`10`	`+func TestHeightChecker(t *testing.T) {`
	`11`	`+ tests := [...]caseType{`
	`12`	`+ {`
	`13`	`+ input: []int{1, 1, 4, 2, 1, 3},`
	`14`	`+ expected: 3,`
	`15`	`+ },`
	`16`	`+ }`
	`17`	`+ for _, tc := range tests {`
	`18`	`+ output := heightChecker(tc.input)`
	`19`	`+ if output != tc.expected {`
	`20`	`+ t.Fatalf("input: %v, output: %v, expected: %v", tc.input, output, tc.expected)`
	`21`	`+ }`
	`22`	`+ }`
	`23`	`+}`

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