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Commit 6321215

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author
Shuo
authored
Merge pull request #241 from openset/develop
Add: Can Place Flowers
2 parents 7e7ca64 + 9e00c7c commit 6321215

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2 files changed

+83
-0
lines changed

2 files changed

+83
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lines changed
Lines changed: 14 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1 +1,15 @@
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package can_place_flowers
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func canPlaceFlowers(flowerbed []int, n int) bool {
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sum, ec := 0, 1
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for _, v := range flowerbed {
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if v == 0 {
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ec++
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} else {
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sum += (ec - 1) / 2
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ec = 0
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}
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}
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sum += ec / 2
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return sum >= n
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}
Lines changed: 69 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1 +1,70 @@
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package can_place_flowers
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import "testing"
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type caseType struct {
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flowerbed []int
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n int
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expected bool
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}
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func TestCanPlaceFlowers(t *testing.T) {
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tests := [...]caseType{
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{
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flowerbed: []int{0, 1, 0, 0, 0, 0, 1, 0},
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n: 2,
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expected: false,
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},
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{
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flowerbed: []int{1, 0, 0, 0, 1},
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n: 1,
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expected: true,
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},
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{
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flowerbed: []int{1, 0, 0, 0, 1},
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n: 2,
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expected: false,
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},
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{
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flowerbed: []int{0, 0, 1, 0},
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n: 1,
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expected: true,
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},
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{
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flowerbed: []int{0, 1, 0, 0},
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n: 1,
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expected: true,
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},
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{
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flowerbed: []int{0, 1, 0, 0, 1, 0},
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n: 1,
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expected: false,
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},
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{
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flowerbed: []int{0, 0, 0, 0, 0},
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n: 3,
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expected: true,
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},
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{
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flowerbed: []int{0, 0},
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n: 2,
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expected: false,
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},
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{
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flowerbed: []int{0},
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n: 1,
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expected: true,
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},
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{
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flowerbed: []int{0, 1},
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n: 1,
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expected: false,
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},
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}
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for _, tc := range tests {
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output := canPlaceFlowers(tc.flowerbed, tc.n)
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if output != tc.expected {
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t.Fatalf("input: %v %v, output: %v, expected: %v", tc.flowerbed, tc.n, output, tc.expected)
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}
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}
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}

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