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Commit 7859b0a

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author
Shuo
authored
Merge pull request #642 from openset/develop
Add: 2 Keys Keyboard
2 parents 470b6c2 + 056d209 commit 7859b0a

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2 files changed

+46
-0
lines changed

2 files changed

+46
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Lines changed: 12 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1 +1,13 @@
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package p_2_keys_keyboard
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func minSteps(n int) int {
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if n == 1 {
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return 0
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}
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for i := 2; i < n; i++ {
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if n%i == 0 {
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return i + minSteps(n/i)
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}
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}
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return n
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}
Lines changed: 34 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1 +1,35 @@
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package p_2_keys_keyboard
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import "testing"
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type caseType struct {
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input int
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expected int
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}
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func TestMinSteps(t *testing.T) {
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tests := [...]caseType{
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{
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input: 1,
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expected: 0,
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},
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{
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input: 3,
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expected: 3,
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},
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{
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input: 30,
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expected: 10,
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},
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{
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input: 97,
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expected: 97,
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},
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}
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for _, tc := range tests {
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output := minSteps(tc.input)
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if output != tc.expected {
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t.Fatalf("input: %v, output: %v, expected: %v", tc.input, output, tc.expected)
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}
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}
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}

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