Added solution for 2177

Author: chirag64

02177. Find Three Consecutive Integers That Sum to a Given Number.rs

@@ -0,0 +1,11 @@
+impl Solution {
+    // If num is divisible by 3, divide it by 3 to get the middle number. Then return a vector with first number (1 less than middle number), middle number and last number (1 more than middle number). If num isn't divisible by 3, return empty vector
+    pub fn sum_of_three(num: i64) -> Vec<i64> {
+        if num % 3 == 0 {
+            let middle_num = num / 3;
+            return [middle_num - 1, middle_num, middle_num + 1].to_vec();
+        } else {
+            return [].to_vec();
+        }
+    }
+}