Bonus challenge for week 4

2023-09-27 13:36:39 -06:00
parent aeb9b2ab12
commit 106f4b17c3
2 changed files with 41 additions and 2 deletions
@@ -12,14 +12,27 @@ public class Week2 {
     * HINT: Solution 1 uses 1000 iterations in 1 loop. 
     */
    public static int problem1() {
-        return -1; // TODO
+        int sum = 0;
+
+        for(int i = 0; i < 1000; i++) {
+            if(i % 5 == 0 || i % 3 == 0) sum += i;
+        }
+
+        return sum;
    }

    /**
     * BONUS CHALLENGE: Find a more efficient solution for problem 1 (ie. a solution that uses less than 1000 iterations).
     */
    public static int problem2() {
-        return -1; // TODO
+        int sum = 0;
+        for(int i = 5; i < 1000; i+=5)
+            sum += i;
+
+        for(int i = 3; i < 1000; i+=3) 
+            if(i % 5 != 0) sum += i;
+
+        return sum;
    }

    /**