add 2652

Author: fishercoder1534

Diff for: paginated_contents/algorithms/3rd_thousand/README.md

@@ -22,6 +22,7 @@
 | 2670 | [Find the Distinct Difference Array](https://leetcode.com/problems/find-the-distinct-difference-array/)                                                                                     | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2670.java)                                       |                                      | Easy                           |
 | 2660 | [Determine the Winner of a Bowling Game](https://leetcode.com/problems/determine-the-winner-of-a-bowling-game/)                                                                                      | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2660.java)                                       |                                      | Easy                           |
 | 2656 | [Maximum Sum With Exactly K Elements](https://leetcode.com/problems/maximum-sum-with-exactly-k-elements/)                                                                                       | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2656.java)                                       |                                      | Easy                           |
+| 2652 | [Sum Multiples](https://leetcode.com/problems/sum-multiples/)                                                                                       | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2652.java)                                       |                                      | Easy                           |
 | 2643 | [Row With Maximum Ones](https://leetcode.com/problems/row-with-maximum-ones/)                                                                                       | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2643.java)                                       |                                      | Easy                           |
 | 2641 | [Cousins in Binary Tree II](https://leetcode.com/problems/cousins-in-binary-tree-ii/)                                                                                       | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2641.java)                                       |                                      | Medium                         |Tree, BFS, HashTable
 | 2605 | [Form Smallest Number From Two Digit Arrays](https://leetcode.com/problems/form-smallest-number-from-two-digit-arrays/)                                                                                      | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2605.java)                                       |                                      | Easy                           |

Diff for: src/main/java/com/fishercoder/solutions/thirdthousand/_2652.java

@@ -0,0 +1,15 @@
+package com.fishercoder.solutions.thirdthousand;
+
+public class _2652 {
+    public static class Solution1 {
+        public int sumOfMultiples(int n) {
+            int sum = 0;
+            for (int i = 1; i <= n; i++) {
+                if (i % 3 == 0 || i % 5 == 0 || i % 7 == 0) {
+                    sum += i;
+                }
+            }
+            return sum;
+        }
+    }
+}