finished the pairs-count function

Afek-Sakaju · Jun 21, 2023 · 5900de4 · 5900de4
1 parent b730920
commit 5900de4
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diff --git a/code-questions/array/__tests__/pairs-count.test.js b/code-questions/array/__tests__/pairs-count.test.js
@@ -2,7 +2,7 @@ const { getPairsCount } = require('../pairs-count');
 
 describe('pairs-count tests', () => {
     test.each([
-        // [[1, 5, 7, 1], 6, 2],
+        [[1, 5, 7, 1], 6, 2],
         [[1, 1, 1, 1], 2, 6],
         [[3, 4], 7, 1],
         [[-1, -2, 3, 4], -3, 1],

diff --git a/code-questions/array/pairs-count.js b/code-questions/array/pairs-count.js
@@ -39,10 +39,10 @@ module.exports.getPairsCount = function (arr, k) {
     });
 
     arr.forEach((num) => {
-    if (k - num === num) {
+        if (k - num === num) {
             if (obj[k - num] > 1) {
-                pairsCount += obj[k - num];
-                obj[num] --;
+                pairsCount += obj[k - num] - 1;
+                obj[num]--;
             }
         } else {
             if (obj[k - num] > 0) {
@@ -51,6 +51,6 @@ module.exports.getPairsCount = function (arr, k) {
             }
         }
     });
-
+    
     return pairsCount;
 };