diff --git a/src/main/java/com/cool/hot100/greedy/Num45.java b/src/main/java/com/cool/hot100/greedy/Num45.java
new file mode 100644
index 0000000..567ed8b
--- /dev/null
+++ b/src/main/java/com/cool/hot100/greedy/Num45.java
@@ -0,0 +1,32 @@
+package com.cool.hot100.greedy;
+
+import org.junit.Test;
+
+/**
+ * Created with IntelliJ IDEA.
+ *
+ * @Author: Cool
+ * @Date: 2024/09/23/20:47
+ * DayNumber 1
+ * Hard 2
+ * Level 6
+ */
+public class Num45 {
+    public int jump(int[] nums) {
+        int end=0;
+        int maxDistance=0;
+        int res=0;
+        for(int i=0;i<nums.length-1;i++){
+            maxDistance=Math.max(maxDistance,i+nums[i]);
+            if(i==end){
+                end=maxDistance;
+                res++;
+            }
+        }
+        return res;
+    }
+    @Test
+    public void test(){
+        jump(new int[]{1,2,3,999});
+    }
+}
diff --git a/src/main/java/com/cool/hot100/greedy/Num763.java b/src/main/java/com/cool/hot100/greedy/Num763.java
new file mode 100644
index 0000000..0bafc25
--- /dev/null
+++ b/src/main/java/com/cool/hot100/greedy/Num763.java
@@ -0,0 +1,36 @@
+package com.cool.hot100.greedy;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Created with IntelliJ IDEA.
+ *
+ * @Author: Cool
+ * @Date: 2024/09/23/22:00
+ * DayNumber 2
+ * Hard 2
+ * Level 4
+ * Score 1443
+ */
+public class Num763 {
+
+    public List<Integer> partitionLabels(String s) {
+        int[] last = new int[26];
+        for (int i = 0; i < s.length(); i++) {
+            last[s.charAt(i) - 'a'] = i;
+        }
+        int end=0;
+        int start=0;
+        List<Integer> res=new ArrayList<>();
+        for (int i = 0; i < s.length(); i++) {
+            end=Math.max(end,last[s.charAt(i)-'a']);
+            if(end==i){
+                res.add(end-start+1);
+                start=i+1;
+            }
+        }
+        return res;
+    }
+
+}