[pull] master from youngyangyang04:master

problems/kamacoder/0105.有向图的完全可达性.md

@@ -491,6 +491,54 @@ func main() {
 
 ### JavaScript
 
+```javascript
+const rl = require('readline').createInterface({
+    input:process.stdin,
+    output:process.stdout
+})
+
+let inputLines = []
+
+rl.on('line' , (line)=>{
+    inputLines.push(line)
+})
+
+rl.on('close',()=>{
+    let [n , edgesCount]= inputLines[0].trim().split(' ').map(Number)
+
+    let graph = Array.from({length:n+1} , ()=>{return[]})
+
+    for(let i = 1 ; i < inputLines.length ; i++ ){
+        let [from  , to] = inputLines[i].trim().split(' ').map(Number)
+        graph[from].push(to)
+    }
+
+    let visited = new Array(n + 1).fill(false)
+
+    let dfs = (graph , key , visited)=>{
+        if(visited[key]){
+            return
+        }
+
+        visited[key] = true
+        for(let nextKey of graph[key]){
+            dfs(graph,nextKey , visited)
+        }
+    }
+
+    dfs(graph , 1 , visited)
+
+    for(let i = 1 ; i <= n;i++){
+        if(visited[i] === false){
+            console.log(-1)
+            return
+        }
+    }
+    console.log(1)
+
+})
+```
+
 ### TypeScript
 
 ### PhP