Create 1995-count-special-quadruplets.js

Author: everthis

1995-count-special-quadruplets.js

@@ -0,0 +1,20 @@
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+const countQuadruplets = function(nums) {
+  let res = 0
+  for(let a = 0, n = nums.length; a < n - 3; a++) {
+    for(let b = a + 1; b < n - 2; b++) {
+      for(let c = b + 1; c < n - 1; c++) {
+        for(let d = c + 1; d < n; d++) {
+          if(nums[a] + nums[b] + nums[c] === nums[d]) res++
+        }
+      }
+    }
+  }
+  
+  
+  return res
+  
+};