added solution for 1283 (fishercoder1534#129)

ashmichheda · web-flow · commit 4a6cc58e7e90 · 2020-11-07T18:13:59.000-08:00
diff --git a/README.md b/README.md
@@ -174,6 +174,7 @@ _If you like this project, please leave me a star._ &#9733;
 |1289|[Minimum Falling Path Sum II](https://leetcode.com/problems/minimum-falling-path-sum-ii/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1289.java) |  |Hard|Dynamic Programming|
 |1287|[Element Appearing More Than 25% In Sorted Array](https://leetcode.com/problems/element-appearing-more-than-25-in-sorted-array/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1287.java) | [:tv:](https://youtu.be/G74W8v2yVjY) |Easy||
 |1286|[Iterator for Combination](https://leetcode.com/problems/iterator-for-combination/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1286.java) | |Medium|Backtracking, Design|
+|1283|[Find the Smallest Divisor Given a Threshold](https://leetcode.com/problems/find-the-smallest-divisor-given-a-threshold/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1283.java) | Medium |
 |1282|[Group the People Given the Group Size They Belong To](https://leetcode.com/problems/group-the-people-given-the-group-size-they-belong-to/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1282.java) |   [:tv:](https://www.youtube.com/watch?v=wGgcRCpSAa8)|Medium||
 |1281|[Subtract the Product and Sum of Digits of an Integer](https://leetcode.com/problems/subtract-the-product-and-sum-of-digits-of-an-integer/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1281.java) |   |Easy||
 |1277|[Count Square Submatrices with All Ones](https://leetcode.com/problems/count-square-submatrices-with-all-ones/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1277.java) |   |Medium||
diff --git a/src/main/java/com/fishercoder/solutions/_1283.java b/src/main/java/com/fishercoder/solutions/_1283.java
@@ -0,0 +1,32 @@
+package com.fishercoder.solutions;
+
+public class _1283 {
+    public static class Solution{
+        private boolean isSumLessThanThreshold(int middle, int[] nums, int threshold){
+            int sum = 0;
+            for(int i = 0; i<nums.length; i++){
+                if(nums[i] % middle == 0)
+                    sum += nums[i]/middle;
+                else
+                    sum += nums[i]/middle + 1;
+            }
+            return sum <= threshold;
+        }
+        public int smallestDivisor(int[] nums, int threshold) {
+
+            int start = 1, result = 0;
+            int end = Integer.MAX_VALUE;
+            while(start <= end){
+                int middle = start + (end - start)/2;
+                if(isSumLessThanThreshold(middle, nums, threshold)){
+                    result = middle;
+                    end = middle - 1;
+                }
+                else{
+                    start = middle + 1;
+                }
+            }
+            return result;
+        }
+    }
+}
diff --git a/src/test/java/com/fishercoder/_1283Test.java b/src/test/java/com/fishercoder/_1283Test.java
@@ -0,0 +1,33 @@
+package com.fishercoder;
+
+import com.fishercoder.common.utils.TreeUtils;
+import com.fishercoder.solutions._1283;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.util.Arrays;
+
+import static junit.framework.TestCase.assertEquals;
+
+public class _1283Test {
+    private static _1283.Solution solution;
+    private static int[] nums;
+    private static int threshold;
+    @BeforeClass
+    public static void setup() {
+        solution = new _1283.Solution();
+    }
+
+    @Test
+    public void test1() {
+        nums = new int []{1,2,5,9};
+        threshold = 6;
+        assertEquals(5, solution.smallestDivisor(nums, threshold));
+    }
+    @Test
+    public void test2() {
+        nums = new int []{2,3,5,7,11};
+        threshold = 11;
+        assertEquals(3, solution.smallestDivisor(nums, threshold));
+    }
+}
