Update Apply Operations to an Array.java

varunu28 · web-flow · commit 88ecb654b064 · 2025-03-01T09:10:57.000-08:00
diff --git a/Easy/Apply Operations to an Array.java b/Easy/Apply Operations to an Array.java
@@ -1,21 +1,20 @@
 class Solution {
     public int[] applyOperations(int[] nums) {
-        for (int i = 0; i < nums.length - 1; i++) {
+        int n = nums.length;
+        for (int i = 0; i < n - 1; i++) {
             if (nums[i] == nums[i + 1]) {
                 nums[i] *= 2;
                 nums[i + 1] = 0;
             }
         }
-        int startIdx = 0;
-        int endIdx = 0;
-        while (endIdx < nums.length) {
-            if (nums[endIdx] != 0) {
-                nums[startIdx++] = nums[endIdx];
+        int start = 0;
+        for (int i = 0; i < n; i++) {
+            if (nums[i] != 0) {
+                nums[start++] = nums[i];
             }
-            endIdx++;
         }
-        while (startIdx < nums.length) {
-            nums[startIdx++] = 0;
+        while (start < n) {
+            nums[start++] = 0;
         }
         return nums;
     }

Original file line number	Diff line number	Diff line change
`@@ -1,21 +1,20 @@`
`1`	`1`	`class Solution {`
`2`	`2`	`public int[] applyOperations(int[] nums) {`
`3`		`- for (int i = 0; i < nums.length - 1; i++) {`
	`3`	`+ int n = nums.length;`
	`4`	`+ for (int i = 0; i < n - 1; i++) {`
`4`	`5`	`if (nums[i] == nums[i + 1]) {`
`5`	`6`	`nums[i] *= 2;`
`6`	`7`	`nums[i + 1] = 0;`
`7`	`8`	`}`
`8`	`9`	`}`
`9`		`- int startIdx = 0;`
`10`		`- int endIdx = 0;`
`11`		`- while (endIdx < nums.length) {`
`12`		`- if (nums[endIdx] != 0) {`
`13`		`- nums[startIdx++] = nums[endIdx];`
	`10`	`+ int start = 0;`
	`11`	`+ for (int i = 0; i < n; i++) {`
	`12`	`+ if (nums[i] != 0) {`
	`13`	`+ nums[start++] = nums[i];`
`14`	`14`	`}`
`15`		`- endIdx++;`
`16`	`15`	`}`
`17`		`- while (startIdx < nums.length) {`
`18`		`- nums[startIdx++] = 0;`
	`16`	`+ while (start < n) {`
	`17`	`+ nums[start++] = 0;`
`19`	`18`	`}`
`20`	`19`	`return nums;`
`21`	`20`	`}`