add 1936

fishercoder1534 · fishercoder1534 · commit 2e5b07a053a8 · 2021-07-18T09:08:32.000-07:00
diff --git a/README.md b/README.md
@@ -8,6 +8,7 @@ _If you like this project, please leave me a star._ &#9733;
 
 |  #  |      Title     |   Solutions   | Video  | Difficulty  | Tag        1           
 |-----|----------------|---------------|--------|-------------|-------------
+|1936|[Add Minimum Number of Rungs](https://leetcode.com/problems/add-minimum-number-of-rungs/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1936.java) ||Medium||
 |1935|[Maximum Number of Words You Can Type](https://leetcode.com/problems/maximum-number-of-words-you-can-type/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1935.java) ||Easy|String|
 |1929|[Concatenation of Array](https://leetcode.com/problems/concatenation-of-array/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1929.java) ||Easy||
 |1926|[Nearest Exit from Entrance in Maze](https://leetcode.com/problems/nearest-exit-from-entrance-in-maze/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1926.java) ||Medium|DP, DFS, BFS|
diff --git a/src/main/java/com/fishercoder/solutions/_1936.java b/src/main/java/com/fishercoder/solutions/_1936.java
@@ -0,0 +1,22 @@
+package com.fishercoder.solutions;
+
+public class _1936 {
+    public static class Solution1 {
+        public int addRungs(int[] rungs, int dist) {
+            int addons = 0;
+            int currentHeight = 0;
+            for (int i = 0; i < rungs.length; ) {
+                int nextRung = rungs[i];
+                if (nextRung - currentHeight <= dist) {
+                    currentHeight = nextRung;
+                    i++;
+                } else {
+                    int adds = (nextRung - currentHeight - 1) / dist;
+                    addons += adds;
+                    currentHeight += dist * adds;
+                }
+            }
+            return addons;
+        }
+    }
+}
diff --git a/src/test/java/com/fishercoder/_1936Test.java b/src/test/java/com/fishercoder/_1936Test.java
@@ -0,0 +1,42 @@
+package com.fishercoder;
+
+import com.fishercoder.solutions._1936;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class _1936Test {
+    private static _1936.Solution1 solution1;
+
+    @BeforeClass
+    public static void setup() {
+        solution1 = new _1936.Solution1();
+    }
+
+    @Test
+    public void test1() {
+        assertEquals(2, solution1.addRungs(new int[]{3}, 1));
+    }
+
+    @Test
+    public void test2() {
+        assertEquals(2, solution1.addRungs(new int[]{1, 3, 5, 10}, 2));
+    }
+
+    @Test
+    public void test3() {
+        assertEquals(0, solution1.addRungs(new int[]{3, 6, 8, 10}, 3));
+    }
+
+    @Test
+    public void test4() {
+        assertEquals(1, solution1.addRungs(new int[]{3, 4, 6, 7}, 2));
+    }
+
+    @Test
+    public void test5() {
+        assertEquals(0, solution1.addRungs(new int[]{5}, 10));
+    }
+
+}
