✏️ Fix: #219

Author: jangwonyoon

two-sum/jangwonyoon.js

@@ -7,12 +7,14 @@ var twoSum = function(nums, target) {
     const length = nums.length - 1;
 
     for (let i = 0; i < length; i++) {
-        for (let j = length; j > 0; j--) {
+        for(let j = length; j > 0; j--) {
             const sum = nums[i] + nums[j];
 
-            if (sum === target) {
-                return [i, j];
+            if (i !== j) {
+                if (sum === target) {
+                    return [i , j];
+                }
             }
         }
     }
-};
+};