Create 5957-adding-spaces-to-a-string.js

Author: everthis

5957-adding-spaces-to-a-string.js

@@ -0,0 +1,18 @@
+/**
+ * @param {string} s
+ * @param {number[]} spaces
+ * @return {string}
+ */
+var addSpaces = function(s, spaces) {
+  let res = '', j = 0, idx = spaces[j]
+  for(let i = 0, n = s.length; i < n; i++) {
+    if(i === idx) {
+      res += ' '
+      j++
+      idx = spaces[j]
+    }
+    res += s[i]
+  }
+  
+  return res
+};