diff options
| -rw-r--r-- | 841/go.mod | 3 | ||||
| -rw-r--r-- | 841/main.go | 26 |
2 files changed, 29 insertions, 0 deletions
diff --git a/841/go.mod b/841/go.mod new file mode 100644 index 0000000..d38aff7 --- /dev/null +++ b/841/go.mod @@ -0,0 +1,3 @@ +module 841 + +go 1.19 diff --git a/841/main.go b/841/main.go new file mode 100644 index 0000000..586f0fd --- /dev/null +++ b/841/main.go @@ -0,0 +1,26 @@ +package main + +import "fmt" + +func canVisitAllRooms(rooms [][]int) bool { + visited := map[int]bool{} + dfs(rooms, visited, 0) + return len(visited) == len(rooms) +} + +func dfs(rooms [][]int, visited map[int]bool, room int) { + if _, ok := visited[room]; !ok { + visited[room] = true + } else { + return + } + + for i := range rooms[room] { + dfs(rooms, visited, rooms[room][i]) + } +} + +func main() { + fmt.Println(canVisitAllRooms([][]int{{1}, {2}, {3}, {}})) + fmt.Println(canVisitAllRooms([][]int{{1, 3}, {3, 0, 1}, {2}, {}})) +} |