Commit 0d3d5a1

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Shuo

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Merge pull request #531 from openset/develop

Add: Robot Bounded In Circle

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Lines changed: 16 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,16 @@`
	`1`	`+package robot_bounded_in_circle`
	`2`	`+`
	`3`	`+func isRobotBounded(instructions string) bool {`
	`4`	`+ x, y, dx, dy := 0, 0, 0, 1`
	`5`	`+ for _, i := range instructions {`
	`6`	`+ switch i {`
	`7`	`+ case 'G':`
	`8`	`+ x, y = x+dx, y+dy`
	`9`	`+ case 'L':`
	`10`	`+ dx, dy = -dy, dx`
	`11`	`+ case 'R':`
	`12`	`+ dx, dy = dy, -dx`
	`13`	`+ }`
	`14`	`+ }`
	`15`	`+ return x == 0 && y == 0 \|\| dx != 0 \|\| dy != 1`
	`16`	`+}`

Lines changed: 47 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,47 @@`
	`1`	`+package robot_bounded_in_circle`
	`2`	`+`
	`3`	`+import "testing"`
	`4`	`+`
	`5`	`+type caseType struct {`
	`6`	`+ input string`
	`7`	`+ expected bool`
	`8`	`+}`
	`9`	`+`
	`10`	`+func TestIsRobotBounded(t *testing.T) {`
	`11`	`+ tests := [...]caseType{`
	`12`	`+ {`
	`13`	`+ input: "GGLLGG",`
	`14`	`+ expected: true,`
	`15`	`+ },`
	`16`	`+ {`
	`17`	`+ input: "GG",`
	`18`	`+ expected: false,`
	`19`	`+ },`
	`20`	`+ {`
	`21`	`+ input: "GL",`
	`22`	`+ expected: true,`
	`23`	`+ },`
	`24`	`+ {`
	`25`	`+ input: "GGLLGGGGRRGG",`
	`26`	`+ expected: true,`
	`27`	`+ },`
	`28`	`+ {`
	`29`	`+ input: "GGRRGG",`
	`30`	`+ expected: true,`
	`31`	`+ },`
	`32`	`+ {`
	`33`	`+ input: "GLRLLGLL",`
	`34`	`+ expected: true,`
	`35`	`+ },`
	`36`	`+ {`
	`37`	`+ input: "GLGRGLGLGLGL",`
	`38`	`+ expected: false,`
	`39`	`+ },`
	`40`	`+ }`
	`41`	`+ for _, tc := range tests {`
	`42`	`+ output := isRobotBounded(tc.input)`
	`43`	`+ if output != tc.expected {`
	`44`	`+ t.Fatalf("input: %v, output: %v, expected: %v", tc.input, output, tc.expected)`
	`45`	`+ }`
	`46`	`+ }`
	`47`	`+}`

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